CVE-2023-3812

highpriority · track · 31EPSS 0.003 · 28 %ileDEEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.34% (28th) EPSS

CVSS 7.8 · high

Is it mine?

45 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

An out-of-bounds memory access flaw was found in the Linux kernel’s TUN/TAP device driver functionality in how a user generates a malicious (too big) networking packet when napi frags is enabled. This flaw allows a local user to crash or potentially escalate their privileges on the system.

cvss

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

7.8

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 1.8 · impact 5.9

v3.17.8highAV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · secalert@redhat.com USexploitability 1.8 · impact 5.9

v3.17.1highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · 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-416USprimaryCWE-787USprimaryCWE-125USCWE-416USCWE-787US

affected products (45)

Products and version ranges known to be affected.

IBM QRadar SIEM 7.5.0all versionscert_bundDEcpe:/a:ibm:qradar_siem:7.5.0
IBM QRadar SIEM <7.5.0 UP11 IF01all versionscert_bundDE
IBM QRadar SIEM <7.5.0 UP8 IF02all versionscert_bundDE
SUSE Linuxall versionscert_bundDEcpe:/o:suse:suse_linux:-
IBM QRadar SIEM< 7.5.0 UP11 IF01cert_bundDE
IBM QRadar SIEM< 7.5.0 UP8 IF02cert_bundDE
Red Hat Red Hat Enterprise Linux 8< 0:4.18.0-513.9.1.el8_9enisa_euvdEU
Red Hat Red Hat Enterprise Linux 8< 0:4.18.0-513.9.1.rt7.311.el8_9enisa_euvdEU
Red Hat Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions< 0:4.18.0-147.94.1.el8_1enisa_euvdEU
Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support< 0:4.18.0-193.133.1.el8_2enisa_euvdEU
Red Hat Red Hat Enterprise Linux 8.2 Telecommunications Update Service< 0:4.18.0-193.133.1.el8_2enisa_euvdEU
Red Hat Red Hat Enterprise Linux 8.2 Telecommunications Update Service< 0:4.18.0-193.133.1.rt13.184.el8_2enisa_euvdEU
Red Hat Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions< 0:4.18.0-193.133.1.el8_2enisa_euvdEU
Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support< 0:4.18.0-305.120.1.el8_4enisa_euvdEU
Red Hat Red Hat Enterprise Linux 8.4 Telecommunications Update Service< 0:4.18.0-305.120.1.el8_4enisa_euvdEU
Red Hat Red Hat Enterprise Linux 8.4 Telecommunications Update Service< 0:4.18.0-305.120.1.rt7.196.el8_4enisa_euvdEU
Red Hat Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions< 0:4.18.0-305.120.1.el8_4enisa_euvdEU
Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support< 0:4.18.0-372.87.1.el8_6enisa_euvdEU
Red Hat Red Hat Enterprise Linux 8.8 Extended Update Support< 0:4.18.0-477.43.1.el8_8enisa_euvdEU
Red Hat Red Hat Enterprise Linux 9< 0:5.14.0-362.18.1.el9_3enisa_euvdEU

showing 20 of 45

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2023-1876Linux Kernel: Schwachstelle ermöglicht Privilegieneskalation oder Denial of ServiceDeutsch2023-07-24csaf · cert_bundDE
Ein lokaler Angreifer kann eine Schwachstelle im Linux Kernel ausnutzen, um seine Privilegien zu erhöhen oder einen Denial of Service Zustand zu verursachen.
WID-SEC-W-2024-1086IBM QRadar SIEM: Mehrere SchwachstellenDeutsch2024-05-09csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in IBM QRadar SIEM ausnutzen, um beliebigen Code auszuführen, Sicherheitsmaßnahmen zu umgehen, einen Denial-of-Service-Zustand herbeizuführen, vertrauliche Informationen offenzulegen, Dateien zu manipulieren, seine Privilegien zu erweitern, einen Cross-Site-Scripting (XSS)-Angriff durchzuführen oder einen nicht spezifizierten Angriff auszuführen.

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 NVD CVE.org MITRE

published 2023-07-24modified 2026-06-17

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+28127 more

references (66)

External citations — patches, advisories, analysis.

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