CVE-2022-34303

mediumpriority · track · 37OT risk · elevatedEPSS 0.009 · 58 %ileexploit · PoCDEEURUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

1 exploit · PoC

Likely / severe?

0.86% (58th) EPSS

CVSS 6.7 · medium

Is it mine?

105 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

A flaw was found in Eurosoft bootloaders before 2022-06-01. An attacker may use this bootloader to bypass or tamper with Secure Boot protections. In order to load and execute arbitrary code in the pre-boot stage, an attacker simply needs to replace the existing signed bootloader currently in use with this bootloader. Access to the EFI System Partition is required for booting using external media.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

Fixedfwupd-0:1.8.10-2.el9.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 9)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2023:2487
Fixedfwupd-0:1.8.10-2.el9.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 9)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2023:2487
Fixedfwupd-0:1.8.10-2.el9.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 9)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2023:2487
Fixedfwupd-0:1.8.10-2.el9.src as a component of Red Hat Enterprise Linux BaseOS (v. 9)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2023:2487
Fixedfwupd-0:1.8.10-2.el9.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 9)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2023:2487
Fixedfwupd-debuginfo-0:1.8.10-2.el9.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2023:2487
Fixedfwupd-debuginfo-0:1.8.10-2.el9.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 9)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2023:2487
Fixedfwupd-debuginfo-0:1.8.10-2.el9.aarch64 as a component of Red Hat Enterprise Linux CRB (v. 9)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2023:2487
Fixedfwupd-debuginfo-0:1.8.10-2.el9.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2023:2487
Fixedfwupd-debuginfo-0:1.8.10-2.el9.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 9)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2023:2487
Fixedfwupd-debuginfo-0:1.8.10-2.el9.ppc64le as a component of Red Hat Enterprise Linux CRB (v. 9)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2023:2487
Fixedfwupd-debuginfo-0:1.8.10-2.el9.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 9)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2023:2487
Fixedfwupd-debuginfo-0:1.8.10-2.el9.s390x as a component of Red Hat Enterprise Linux CRB (v. 9)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2023:2487
Fixedfwupd-debuginfo-0:1.8.10-2.el9.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2023:2487
Fixedfwupd-debuginfo-0:1.8.10-2.el9.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 9)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2023:2487
Fixedfwupd-debuginfo-0:1.8.10-2.el9.x86_64 as a component of Red Hat Enterprise Linux CRB (v. 9)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2023:2487
Fixedfwupd-debugsource-0:1.8.10-2.el9.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2023:2487
Fixedfwupd-debugsource-0:1.8.10-2.el9.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 9)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2023:2487
Fixedfwupd-debugsource-0:1.8.10-2.el9.aarch64 as a component of Red Hat Enterprise Linux CRB (v. 9)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2023:2487
Fixedfwupd-debugsource-0:1.8.10-2.el9.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2023:2487
Fixedfwupd-debugsource-0:1.8.10-2.el9.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 9)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2023:2487
Fixedfwupd-debugsource-0:1.8.10-2.el9.ppc64le as a component of Red Hat Enterprise Linux CRB (v. 9)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2023:2487
Fixedfwupd-debugsource-0:1.8.10-2.el9.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 9)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2023:2487
Fixedfwupd-debugsource-0:1.8.10-2.el9.s390x as a component of Red Hat Enterprise Linux CRB (v. 9)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2023:2487
Fixedfwupd-debugsource-0:1.8.10-2.el9.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2023:2487
Fixedfwupd-debugsource-0:1.8.10-2.el9.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 9)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2023:2487
Fixedfwupd-debugsource-0:1.8.10-2.el9.x86_64 as a component of Red Hat Enterprise Linux CRB (v. 9)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2023:2487
Fixedfwupd-devel-0:1.8.10-2.el9.aarch64 as a component of Red Hat Enterprise Linux CRB (v. 9)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2023:2487
Fixedfwupd-devel-0:1.8.10-2.el9.ppc64le as a component of Red Hat Enterprise Linux CRB (v. 9)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2023:2487
Fixedfwupd-devel-0:1.8.10-2.el9.s390x as a component of Red Hat Enterprise Linux CRB (v. 9)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2023:2487
Fixedfwupd-devel-0:1.8.10-2.el9.x86_64 as a component of Red Hat Enterprise Linux CRB (v. 9)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2023:2487
Fixedfwupd-plugin-flashrom-0:1.8.10-2.el9.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2023:2487
Fixedfwupd-plugin-flashrom-0:1.8.10-2.el9.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2023:2487
Fixedfwupd-plugin-flashrom-0:1.8.10-2.el9.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2023:2487
Fixedfwupd-plugin-flashrom-debuginfo-0:1.8.10-2.el9.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2023:2487
Fixedfwupd-plugin-flashrom-debuginfo-0:1.8.10-2.el9.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 9)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2023:2487
Fixedfwupd-plugin-flashrom-debuginfo-0:1.8.10-2.el9.aarch64 as a component of Red Hat Enterprise Linux CRB (v. 9)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2023:2487
Fixedfwupd-plugin-flashrom-debuginfo-0:1.8.10-2.el9.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2023:2487
Fixedfwupd-plugin-flashrom-debuginfo-0:1.8.10-2.el9.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 9)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2023:2487
Fixedfwupd-plugin-flashrom-debuginfo-0:1.8.10-2.el9.ppc64le as a component of Red Hat Enterprise Linux CRB (v. 9)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2023:2487
Fixedfwupd-plugin-flashrom-debuginfo-0:1.8.10-2.el9.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2023:2487
Fixedfwupd-plugin-flashrom-debuginfo-0:1.8.10-2.el9.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 9)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2023:2487
Fixedfwupd-plugin-flashrom-debuginfo-0:1.8.10-2.el9.x86_64 as a component of Red Hat Enterprise Linux CRB (v. 9)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2023:2487
Fixedfwupd-tests-debuginfo-0:1.8.10-2.el9.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2023:2487
Fixedfwupd-tests-debuginfo-0:1.8.10-2.el9.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 9)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2023:2487
Fixedfwupd-tests-debuginfo-0:1.8.10-2.el9.aarch64 as a component of Red Hat Enterprise Linux CRB (v. 9)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2023:2487
Fixedfwupd-tests-debuginfo-0:1.8.10-2.el9.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 9)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2023:2487
Fixedfwupd-tests-debuginfo-0:1.8.10-2.el9.s390x as a component of Red Hat Enterprise Linux CRB (v. 9)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2023:2487
Fixedfwupd-tests-debuginfo-0:1.8.10-2.el9.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2023:2487
Fixedfwupd-tests-debuginfo-0:1.8.10-2.el9.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 9)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2023:2487
Fixedfwupd-tests-debuginfo-0:1.8.10-2.el9.x86_64 as a component of Red Hat Enterprise Linux CRB (v. 9)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2023:2487

cvss

Technical severity, 0–10. One row per scoring source.

7.2

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5.5–7.2

v3.16.7mediumCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 0.8 · impact 5.9

v3.15.5mediumAV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:Lsecondary · FSTEC (BDU) RU

v3.16.3mediumCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:Psecondary · CVSS-BT (t0sche)

v3.17.2highCVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:Hsecondary · Red Hat Product Security US

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-254USCWE-494US

exploits (1)

Public proof-of-concept and weaponised exploit code.

TheMalwareGuardian/CVE-2022-34303CVE-2022-34303 - Secure Boot bypass via CryptoPro Secure Disk signed UEFI Shell (Shell_Full.efi) - BYOVUA technique exploiting mm command for gSecurity2 corruption to load unsigned UEFI applications.PoC · poc_in_github

affected products (105)

Products and version ranges known to be affected.

Amazon Linux 2all versionscert_bundDEcpe:/o:amazon:linux_2:-
Debian Linuxall versionscert_bundDEcpe:/o:debian:debian_linux:-
Fedora Linuxall versionscert_bundDEcpe:/o:fedoraproject:fedora:-
Gentoo Linuxall versionscert_bundDEcpe:/o:gentoo:linux:-
Oracle Linuxall versionscert_bundDEcpe:/o:oracle:linux:-
RESF Rocky Linuxall versionscert_bundDEcpe:/o:resf:rocky_linux:-
Red Hat Enterprise Linuxall versionscert_bundDEcpe:/o:redhat:enterprise_linux:-
Red Hat Enterprise Linux 9all versionscert_bundDEcpe:/o:redhat:enterprise_linux:9
Red Hat OpenShift Container Platform <4.14.0all versionscert_bundDE
Red Hat OpenShift Data Foundation 4all versionscert_bundDEcpe:/a:redhat:openshift:data_foundation_4
SUSE Linuxall versionscert_bundDEcpe:/o:suse:suse_linux:-
SUSE openSUSEall versionscert_bundDEcpe:/o:suse:opensuse:-
Ubuntu Linuxall versionscert_bundDEcpe:/o:canonical:ubuntu_linux:-
Red Hat OpenShift≤ Container Platform <4.14.0cert_bundDE
n/a n/a≤ n/aenisa_euvdEU
Microsoft Corp Windows 10all versionsfstec_bduRU
Microsoft Corp Windows 10 1607all versionsfstec_bduRU
Microsoft Corp Windows 10 1809all versionsfstec_bduRU
Microsoft Corp Windows 10 20H2all versionsfstec_bduRU
Microsoft Corp Windows 10 21H1all versionsfstec_bduRU

showing 20 of 105

advisories (3)

Vendor and ecosystem advisories describing this.

RHSA-2023:2487Red Hat Security Advisory: fwupd security and bug fix update2023-05-09csaf · redhat_csafUS
An update for fwupd is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
WID-SEC-W-2023-1185Red Hat Enterprise Linux: Mehrere SchwachstellenDeutsch2023-05-09csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Red Hat Enterprise Linux ausnutzen, um beliebigen Code auszuführen, Sicherheitsmaßnahmen zu umgehen, vertrauliche Informationen offenzulegen, einen Denial-of-Service-Zustand auszulösen, seine Privilegien zu erweitern und Daten zu manipulieren.
WID-SEC-W-2023-2907Intel NUC Firmware: Mehrere SchwachstellenDeutsch2023-11-14csaf · cert_bundDE
Ein lokaler Angreifer kann mehrere Schwachstellen in Intel NUC BIOS firmware ausnutzen, um seine Privilegien zu erweitern, beliebigen Programmcode auszuführen oder Informationen offenzulegen.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund redhat_csaf NVD CVE.org MITRE

published 2022-08-26modified 2026-06-17

references (11)

External citations — patches, advisories, analysis.

scry

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