HighCVE-2026-31488

Linux Kernel: Use-After-Free (CVE-2026-31488)

Published 22.04.2026Last modified 19.10.2026Sources: SUSE, Debian, Debian LTS, BSI, Siemens ProductCERT, Ubuntu, Red Hat, CVE.org, Msrc Update Guide, EUVD

What is affected, what to do

A flaw was found in the Linux kernel's AMD display component. This vulnerability arises from incorrect validation of display mode changes during Display Stream Compression (DSC) processing.

Update Linux Kernel to version 6.1.175, Linux Kernel to version 6.6.140, Linux Kernel to version 6.12.80.

Affected: Linux Kernel lt 5.18..6.1.175
Linux Kernel lt 6.2..6.6.140
Linux Kernel lt 6.7..6.12.80
Linux Kernel lt 6.13..6.18.21
Linux Kernel lt 6.19..6.19.11
Linux Kernel lt 6.20..7.0
Fixed in: Linux Kernel 6.1.175
Linux Kernel 6.6.140
Linux Kernel 6.12.80
Linux Kernel 6.18.21
Linux Kernel 6.19.11
Linux Kernel 7.0

Not sure whether and how you are affected? Ask a question about this vulnerability

Metrics

7.8

Priority

XIEM Effective CVSS: highest available CVSS rating from NVD and vendor data.

Source: NVD, CVSS v3

7.8

CVSS v3

Severity High on the scale from 0 to 10.

Source: SUSE, Debian, Debian LTS, BSI, Siemens ProductCERT, Ubuntu, Red Hat, CVE.org, Msrc Update Guide, EUVD

0.1 %

EPSS score

Low — model estimates < 1% exploitation likelihood.

Source: FIRST EPSS, percentile 3.4

Show all metrics

Severity: High
Priority (0–325) The priority score is a consolidated metric that condenses several individual signals into a single, action-guiding ranking: technical severity (CVSS), exploitation likelihood (EPSS), known-exploited status (KEV) and the context of the affected asset. The aim is to answer the only truly important question in vulnerability management: what first? Read in glossary: 55.62 Methodology
Exploit maturity An exploit is code or a technique that specifically uses a concrete vulnerability to force unintended behaviour — such as executing code or escalating privileges. It is the tool that turns a theoretical flaw into a practical attack. Read in glossary: no public PoC known
XIEM Effective CVSS XIEM® is the tiered managed-security operating model from NEOSEC and a registered trademark of NEOSEC GmbH. It extends classic SIEM — the central collection, normalisation and correlation of security-relevant events — with endpoint forensics, network visibility and deception technology, and consolidates them into three building tiers: Sentry, Orchestrate and Command. Read in glossary: 7.8 Methodology
CVSS v3 CVSS is the globally established, open standard for assessing the technical severity of a vulnerability on a scale from 0 to 10. It describes how easily a flaw can be exploited and what damage it can cause — but not how likely its actual exploitation is. CVSS and the complementary EPSS deliberately answer different questions. Read in glossary: 7.8
EPSS score The EPSS score is the absolute model output for an individual vulnerability: the estimated probability of real-world exploitation within the next 30 days, expressed as a value between 0 and 1 (i.e. 0 % to 100 %). A score of 0.42 means „the model estimates a 42 % chance of real-world exploitation within 30 days“. Read in glossary: 0.1 %; Low — model estimates < 1% exploitation likelihood.
EPSS percentile The EPSS percentile is the relative position of a vulnerability within all EPSS-scored CVEs, expressed as a value between 0 and 1. A percentile of 0.90 means „this CVE has a higher EPSS score than 90 % of all other scored CVEs“. Unlike the EPSS score, it is not a probability — but a positioning within a ranking. Read in glossary: 3.4; Low — this CVE sits in the lower 10% of all CVEs scored today.
KEV status The KEV catalogue is a list maintained by the US authority CISA of vulnerabilities for which active exploitation in the wild has been confirmed. It answers not the question „how severe?“ but „is it already being attacked?“ — thereby sharply prioritising patching. Read in glossary: —
Published: 22.04.2026
CISA assessment (SSVC): Exploitation: none known · not automatable · Technical impact: total; Source: CISA Vulnrichment, as of 16 October 2026
CWE CWE is a catalogue of typical weakness types in software and hardware — such as flawed input validation, unsafe memory handling or poor authentication. Where a CVE names a concrete vulnerability in a concrete product, a CWE describes the underlying class of defect. Read in glossary: CWE-416

Detection rules

No NEOSEC detection rule is available for this vulnerability yet.

Classification under NIS2 and CRA

Rule-based classification from exploitation status and severity. It does not replace a case-by-case assessment.

NIS2 NIS2 is EU Directive (EU) 2022/2555 to raise the level of cybersecurity across the Union. It substantially broadens obligations compared with the first NIS directive: more sectors, mandatory risk management, staged reporting duties and personal accountability of senior management. Read in glossary: High technical severity: assess and remediate the vulnerability in vulnerability handling under Art. 21(2)(e) NIS2 and document the decision.
CRA The CRA is EU Regulation (EU) 2024/2847 setting horizontal cybersecurity requirements for „products with digital elements“ — from industrial controllers and software to connected consumer devices. For the first time manufacturers must ensure security across the entire product lifecycle, handle vulnerabilities and provide security updates. Read in glossary: From 11.12.2027, Annex I Part II CRA requires manufacturers of affected products with digital elements to handle vulnerabilities without delay and provide security updates.
ISO/IEC 27001 ISO/IEC 27001 is the internationally leading standard for an information security management system (ISMS). It describes a risk-based, process-oriented framework to systematically plan, implement, review and improve information security. Read in glossary: Control A.8.8, management of technical vulnerabilities: assess relevance to your systems, plan remediation and keep evidence.

Description

A flaw was found in the Linux kernel's AMD display component. This vulnerability arises from incorrect validation of display mode changes during Display Stream Compression (DSC) processing. A local attacker could exploit this by initiating specific display configuration changes, which may lead to a memory leak and a use-after-free error. This could result in system crashes, denial of service, or potentially allow the attacker to gain elevated privileges.

Source: suse_csaf, Debian Security Advisories, Debian LTS Advisories, BSI WID Portal, BSI CSAF, siemens_advisory, Ubuntu Security Notices, redhat_csaf, cvelistv5, NVD (NIST), Microsoft Security Update Guide, CVE.org (MITRE), ENISA EUVD

Affected products

The following versions are affected. Older releases of the same product line are also vulnerable unless stated otherwise.

Affected products
		Affected versions	Fixed in
Linux	Linux	`6.2 – < 6.6.140` `6.7 – < 6.12.80` `6.19 – < 6.19.11` `6.13 – < 6.18.21` `6.20 – < 7.0` `5.18 – < 6.1.175`	`6.6.140` `6.12.80` `6.19.11` `6.18.21` `7.0` `6.1.175`
IBM	DataPower Gateway	`< 11.0.0.3` `< 10.6.0.11` `< 10.5.0.23`	`11.0.0.3` `10.6.0.11` `10.5.0.23`
IBM	QRadar SIEM	`<7.5.0 UP15 IF06`	—
Siemens	SIMATIC S7	`1500 TM MFP V1.1.1 GNU/Linux subsystem`	—

Vendors and products

Affected operating systems

Affected operating systems

Linux	debian	linux	`bookworm`
Linux	debian	linux	`trixie`
Linux	debian	linux-6.1	`bullseye`
Linux	linux	linux_kernel	`5.18`
Linux	linux	linux_kernel	`7.0`
Linux	linux	linux_kernel	—

Weakness classes (CWE)

CWE-416Use After Free
Variant
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
Entry at MITRE CWE-416

References & sources

git.kernel.orgstable/c/21159d8b335a6b9f44cbb506733013a902ae2da4euvd
git.kernel.orgstable/c/10862e344b4d6434642a48c87d765813fc0b0ba7euvd, Patch
git.kernel.orgstable/c/8a5edc97fd9c6415ff2eff872748439a97e3c3d8euvd, Patch
git.kernel.orgstable/c/111208b5b7ebcdadb3f922cc52d8425f0fa91b33euvd, Patch
git.kernel.orgstable/c/aed3d041ab061ec8a64f50a3edda0f4db7280025euvd, Patch
git.kernel.orgstable/c/da1d0ed31e9802fd99384f43cc63678a5a11cb41
access.redhat.comsecurity/cve/CVE-2026-31488Vulnerability database, x_refsource_REDHAT
bugzilla.redhat.comRHBZ#2460619Issue tracking, x_refsource_REDHAT
security.access.redhat.comdata/csaf/v2/vex/2026/cve-2026-31488.jsonx_sadp-csaf-vex
access.redhat.comerrata/RHSA-2026:53330Vendor advisory, x_refsource_REDHAT
access.redhat.comerrata/RHSA-2026:47739Vendor advisory, x_refsource_REDHAT
access.redhat.comerrata/RHSA-2026:43231Vendor advisory, x_refsource_REDHAT
access.redhat.comerrata/RHSA-2026:44385Vendor advisory, x_refsource_REDHAT
access.redhat.comerrata/RHSA-2026:30848Vendor advisory, x_refsource_REDHAT
access.redhat.comerrata/RHSA-2026:27353Vendor advisory, x_refsource_REDHAT
access.redhat.comerrata/RHSA-2026:47869Vendor advisory, x_refsource_REDHAT
access.redhat.comerrata/RHSA-2026:27354Vendor advisory, x_refsource_REDHAT
access.redhat.comerrata/RHSA-2026:47632Vendor advisory, x_refsource_REDHAT
access.redhat.comerrata/RHSA-2026:55445Vendor advisory, x_refsource_REDHAT
Siemens ProductCERTproductcert/html/ssa-784472.html

Changes to this CVE

Who changed this CVE and when: NVD (analysis, affected products, CVSS), the CVE publisher (CNA) and additional providers such as CISA (ADP).

19.10.2026Record modifiedCISA ADP
Weakness type: CWE-416
Show the original change
Individual changes of this event as published by NVD
Type Action Before After
Weakness type (CWE) added
—
CWE-416
Source identifier: 134c704f-9b21-4f2e-91b3-4a467353bcc0

Individual changes of this event as published by NVD
Type	Action	Before	After
Weakness type (CWE)	added	—	CWE-416

16.10.2026Record modifiedCISA ADP

CISA assessment (SSVC): exploitation: none known, automatable: no

Show the original change

Individual changes of this event as published by NVD
Type	Action	Before	After
SSVC assessment	added	—	{"id":"CVE-2026-31488","role":"CISA Coordinator","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"total"}],"version":"2.0.3","timestamp":"2026-10-16T15:10:11.804167Z"}

Source identifier: 134c704f-9b21-4f2e-91b3-4a467353bcc0

15.10.2026Record modifiedSiemens ADP

New references:

https://cert-portal.siemens.com/productcert/html/ssa-784472.html

Show 2 original changes

Individual changes of this event as published by NVD
Type	Action	Before	After
Affected versions (publisher)	added	—	New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/31xxx/CVE-2026-31488.json">CVE-2026-31488</a>
Reference	added	—	https://cert-portal.siemens.com/productcert/html/ssa-784472.html

Source identifier: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e

15.10.2026Record modifiedLinux

New references:

and 2 more references

Show 16 original changes

Individual changes of this event as published by NVD
Type	Action	Before	After
Reference	added	—	https://git.kernel.org/stable/c/10862e344b4d6434642a48c87d765813fc0b0ba7
Reference	added	—	https://git.kernel.org/stable/c/111208b5b7ebcdadb3f922cc52d8425f0fa91b33
Reference	added	—	https://git.kernel.org/stable/c/21159d8b335a6b9f44cbb506733013a902ae2da4
Reference	added	—	https://git.kernel.org/stable/c/8a5edc97fd9c6415ff2eff872748439a97e3c3d8
Reference	added	—	https://git.kernel.org/stable/c/aed3d041ab061ec8a64f50a3edda0f4db7280025
Reference	added	—	https://git.kernel.org/stable/c/da1d0ed31e9802fd99384f43cc63678a5a11cb41
Reference	removed	https://git.kernel.org/stable/c/10862e344b4d6434642a48c87d765813fc0b0ba7	—
Reference	removed	https://git.kernel.org/stable/c/111208b5b7ebcdadb3f922cc52d8425f0fa91b33	—
Reference	removed	https://git.kernel.org/stable/c/21159d8b335a6b9f44cbb506733013a902ae2da4	—
Reference	removed	https://git.kernel.org/stable/c/8a5edc97fd9c6415ff2eff872748439a97e3c3d8	—
Reference	removed	https://git.kernel.org/stable/c/aed3d041ab061ec8a64f50a3edda0f4db7280025	—
Reference	removed	https://git.kernel.org/stable/c/da1d0ed31e9802fd99384f43cc63678a5a11cb41	—
Reference type	removed	https://git.kernel.org/stable/c/10862e344b4d6434642a48c87d765813fc0b0ba7 Types: Patch	—
Reference type	removed	https://git.kernel.org/stable/c/111208b5b7ebcdadb3f922cc52d8425f0fa91b33 Types: Patch	—
Reference type	removed	https://git.kernel.org/stable/c/8a5edc97fd9c6415ff2eff872748439a97e3c3d8 Types: Patch	—
Reference type	removed	https://git.kernel.org/stable/c/aed3d041ab061ec8a64f50a3edda0f4db7280025 Types: Patch	—

Source identifier: 416baaa9-dc9f-4396-8d5f-8c081fb06d67

15.10.2026Record modifiedRed Hat ADP

New references:

and 8 more references

Show 26 original changes

Individual changes of this event as published by NVD
Type	Action	Before	After
Reference	added	—	https://access.redhat.com/errata/RHSA-2026:27353
Reference	added	—	https://access.redhat.com/errata/RHSA-2026:27354
Reference	added	—	https://access.redhat.com/errata/RHSA-2026:30848
Reference	added	—	https://access.redhat.com/errata/RHSA-2026:43231
Reference	added	—	https://access.redhat.com/errata/RHSA-2026:44385
Reference	added	—	https://access.redhat.com/errata/RHSA-2026:47632
Reference	added	—	https://access.redhat.com/errata/RHSA-2026:47739
Reference	added	—	https://access.redhat.com/errata/RHSA-2026:47869
Reference	added	—	https://access.redhat.com/errata/RHSA-2026:53330
Reference	added	—	https://access.redhat.com/errata/RHSA-2026:55445
Reference	added	—	https://access.redhat.com/security/cve/CVE-2026-31488
Reference	added	—	https://bugzilla.redhat.com/show_bug.cgi?id=2460619
Reference	added	—	https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-31488.json
Reference	removed	https://access.redhat.com/errata/RHSA-2026:27353	—
Reference	removed	https://access.redhat.com/errata/RHSA-2026:27354	—
Reference	removed	https://access.redhat.com/errata/RHSA-2026:30848	—
Reference	removed	https://access.redhat.com/errata/RHSA-2026:43231	—
Reference	removed	https://access.redhat.com/errata/RHSA-2026:44385	—
Reference	removed	https://access.redhat.com/errata/RHSA-2026:47632	—
Reference	removed	https://access.redhat.com/errata/RHSA-2026:47739	—
Reference	removed	https://access.redhat.com/errata/RHSA-2026:47869	—
Reference	removed	https://access.redhat.com/errata/RHSA-2026:53330	—
Reference	removed	https://access.redhat.com/errata/RHSA-2026:55445	—
Reference	removed	https://access.redhat.com/security/cve/CVE-2026-31488	—
Reference	removed	https://bugzilla.redhat.com/show_bug.cgi?id=2460619	—
Reference	removed	https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-31488.json	—

Source identifier: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c

Show 3 older changes

30.07.2026Record modifiedRed Hat ADP

New references:

Show 4 original changes

Individual changes of this event as published by NVD
Type	Action	Before	After
Reference	added	—	https://access.redhat.com/errata/RHSA-2026:47632
Reference	added	—	https://access.redhat.com/errata/RHSA-2026:47739
Reference	added	—	https://access.redhat.com/errata/RHSA-2026:47869
Affected versions (publisher)	changed	Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9 (+7)	Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 8.8 Telecommunications Update Service (+11)

Source identifier: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c

24.07.2026Record modifiedRed Hat ADP

New references:

https://access.redhat.com/errata/RHSA-2026:44385

Show 2 original changes

Individual changes of this event as published by NVD
Type	Action	Before	After
Reference	added	—	https://access.redhat.com/errata/RHSA-2026:44385
Affected versions (publisher)	changed	Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9 (+6)	Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9 (+7)

Source identifier: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c

22.07.2026Record modifiedRed Hat ADP

New references:

https://access.redhat.com/errata/RHSA-2026:43231

Show 2 original changes

Individual changes of this event as published by NVD
Type	Action	Before	After
Reference	added	—	https://access.redhat.com/errata/RHSA-2026:43231
Affected versions (publisher)	changed	Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9 (+5)	Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9 (+6)

Source identifier: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c

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<a href="https://intel.neosec.eu/en/cve/CVE-2026-31488"><img src="https://intel.neosec.eu/badge/cve/CVE-2026-31488.svg?lang=en" alt="CVE-2026-31488 – NEOSEC Intel" height="20"></a>