CVE-2023-34440

highpriority · track · 0EPSS 0.003 · 17 %ileDEEURU

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.25% (17th) EPSS

CVSS 7.5 · high

Is it mine?

34 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

Improper input validation in UEFI firmware for some Intel(R) Processors may allow a privileged user to potentially enable escalation of privilege via local access.

cvss

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

8.7

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5.6–8.7

v3.17.5highAV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.17.5highCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:Hsecondary · secure@intel.comexploitability 0.8 · impact 6

v4.08.7highCVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:Hsecondary · ENISA EU

v4.08.7highCVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · secure@intel.com

v4.05.6mediumCVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-20USCWE-20US

affected products (34)

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:-
Dell Computerall versionscert_bundDEcpe:/o:dell:dell_computer:-
Dell PowerEdgeall versionscert_bundDEcpe:/h:dell:poweredge:-
Dell PowerEdge <2.5.4all versionscert_bundDE
Dell PowerScale OneFSall versionscert_bundDEcpe:/a:dell:powerscale_onefs:onefs
Dell PowerScale OneFS <13.2.3all versionscert_bundDE
Fedora Linuxall versionscert_bundDEcpe:/o:fedoraproject:fedora:-
Fujitsu BIOSall versionscert_bundDEcpe:/a:fujitsu:bios:-
HP BIOSall versionscert_bundDEcpe:/h:hp:bios:-
HPE ProLiantall versionscert_bundDEcpe:/h:hp:proliant:-
HPE Synergyall versionscert_bundDEcpe:/h:hpe:synergy:-
Intel Firmwareall versionscert_bundDEcpe:/a:intel:firmware:-
Lenovo BIOSall versionscert_bundDEcpe:/h:lenovo:bios:-
Lenovo Computerall versionscert_bundDEcpe:/h:lenovo:computer:-
RESF Rocky Linuxall versionscert_bundDEcpe:/o:resf:rocky_linux:-
Red Hat Enterprise Linuxall versionscert_bundDEcpe:/o:redhat:enterprise_linux:-
Ubuntu Linuxall versionscert_bundDEcpe:/o:canonical:ubuntu_linux:-
Dell PowerEdge< 2.5.4cert_bundDE
Dell PowerScale OneFS< 13.2.3cert_bundDE

showing 20 of 34

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2025-0323Intel Firmware: Mehrere SchwachstellenDeutsch2025-02-11csaf · cert_bundDE
Ein lokaler Angreifer kann mehrere Schwachstellen in der Intel Firmware ausnutzen, um erweiterte Rechte zu erlangen, einen Denial of Service Zustand herbeizuführen oder vertrauliche Informationen preiszugeben.

also known as (5)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund NVD CVE.org MITRE

published 2025-02-12modified 2026-09-21

references (5)

External citations — patches, advisories, analysis.

scry

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