CVE-2025-71131VulnerabilityPublished 10 Aug 2026Updated 29 Oct 2026

Red Hat Security Advisory: kernel security, bug fix, and enhancement update

Affects Red Hat kernel security,Source GCVE Database

Compare

Mentioned vulnerabilities

Authoritative record:CVE-2025-71131· High 7.5

Not known to be exploited · CVSS 7.5 High · fixed in Red Hat package updates : patch Red Hat kernel security, soon.

Data as of 29 Oct 2026, 16:37 UTC

CVSS 3.1 base score

7.5High

How severe the flaw is on the 0–10 CVSS scale.

Patch: Available – fixed in ccbb96434d88e32358894c879457b33f7508e798, baf0e2d1e03ddb04781dfe7f22a654d3611f69b2, 18202537856e0fae079fed2c9308780bcff2bb9d +4

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector: Network
Attack Complexity: Low
Privileges Required: None
User Interaction: None
Scope: Unchanged
Confidentiality: None
Integrity: None
Availability: High

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed, up to and including the entire Internet. Such a vulnerability is often termed 'remotely exploitable' and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: None: The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files to carry out an attack.
User Interaction: None: The vulnerable system can be exploited without any interaction from any user.
Scope: Unchanged: An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.
Confidentiality: None: There is no loss of confidentiality within the impacted component.
Integrity: None: There is no loss of integrity within the impacted component.
Availability: High: There is total loss of availability, resulting in the attacker being able to fully deny access to resources in the impacted component; this loss is either sustained (while the attacker continues to deliver the attack) or persistent (the condition persists even after the attack has completed). Alternatively, the attacker has the ability to deny some availability, but the loss of availability presents a direct, serious consequence to the impacted component (e.g., the attacker cannot disrupt existing connections, but can prevent new connections; the attacker can repeatedly exploit a vulnerability that, in each instance of a successful attack, leaks a only small amount of memory, but after repeated exploitation causes a service to become completely unavailable).

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 14 Jan 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ 0a270321dbf948963aeb0e8382fe17d2c2eb3771, < ccbb96434d88e32358894c879457b33f7508e798	Fixed in ccbb96434d88e32358894c879457b33f7508e798
LinuxLinux	Affected ≥ 0a270321dbf948963aeb0e8382fe17d2c2eb3771, < baf0e2d1e03ddb04781dfe7f22a654d3611f69b2	Fixed in baf0e2d1e03ddb04781dfe7f22a654d3611f69b2
LinuxLinux	Affected ≥ 0a270321dbf948963aeb0e8382fe17d2c2eb3771, < 18202537856e0fae079fed2c9308780bcff2bb9d	Fixed in 18202537856e0fae079fed2c9308780bcff2bb9d
LinuxLinux	Affected ≥ 0a270321dbf948963aeb0e8382fe17d2c2eb3771, < 0279978adec6f1296af66b642cce641c6580be46	Fixed in 0279978adec6f1296af66b642cce641c6580be46
LinuxLinux	Affected ≥ 0a270321dbf948963aeb0e8382fe17d2c2eb3771, < 5476f7f8a311236604b78fcc5b2a63b3a61b0169	Fixed in 5476f7f8a311236604b78fcc5b2a63b3a61b0169
LinuxLinux	Affected ≥ 0a270321dbf948963aeb0e8382fe17d2c2eb3771, < 50fdb78b7c0bcc550910ef69c0984e751cac72fa	Fixed in 50fdb78b7c0bcc550910ef69c0984e751cac72fa

AI-suggested

Red Hat has released updated kernel packages for Red Hat Enterprise Linux 9.6 Extended Update Support that address these vulnerabilities. Users should apply the available kernel update promptly and reboot their systems to ensure the fixes are active. Red Hat recommends treating all kernel errata as security-relevant and not delaying updates. Detailed update instructions are available at https://access.redhat.com/articles/11258.

Description

This Red Hat security advisory addresses multiple vulnerabilities in the Linux kernel packages for Red Hat Enterprise Linux 9.6 Extended Update Support. The security fixes include a cryptographic issue (CVE-2025-71131), a SELinux overlayfs access check flaw (CVE-2026-46054), and a DRM driver error cleanup bug (CVE-2026-52976). These updates also contain various bug fixes and enhancements. The kernel is a critical component of the operating system, and Red Hat recommends applying these updates promptly and rebooting the system to ensure the fixes take effect.

Impact

The vulnerabilities fixed affect the Linux kernel, which is fundamental to system security and stability. The crypto subsystem flaw (CVE-2025-71131) could potentially lead to cryptographic misuse. The SELinux overlayfs access check issue (CVE-2026-46054) could allow incorrect access permissions, potentially weakening security enforcement. The drm/xe driver bug (CVE-2026-52976) relates to error handling and cleanup, which could cause instability or denial of service. While no known exploits in the wild have been reported, these issues pose a high security risk due to the kernel's critical role.

Summary

The advisory covers security fixes in the Linux kernel for Red Hat Enterprise Linux 9.6 Extended Update Support. The key vulnerabilities fixed are: CVE-2025-71131, which addresses improper use of req->iv after crypto_aead_encrypt in the crypto subsystem; CVE-2026-46054, which corrects SELinux overlayfs mmap() and mprotect() access checks; and CVE-2026-52976, which fixes error cleanup in the drm/xe driver's xe_exec_queue_create_ioctl() function. The advisory also includes several bug fixes and enhancements unrelated to security. Red Hat classifies this update as Important and strongly advises applying the update and rebooting to mitigate potential risks.

CWE-825Expired Pointer Dereference (opens in a new tab)
Base weakness
The product dereferences a pointer that contains a location for memory that was previously valid, but is no longer valid.
Architecture and Design
Choose a language that provides automatic memory management.
Implementation
When freeing pointers, be sure to set them to NULL once they are freed. However, the utilization of multiple or complex data structures may lower the usefulness of this strategy.
OWASP Cheat Sheets
XML Security (opens in a new tab)
Mass Assignment (opens in a new tab)
OWASP ASVS 4.0.3
V13.3.1 (opens in a new tab)
V5.1.4 (opens in a new tab)
V5.1.3 (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).
CWE-280Improper Handling of Insufficient Permissions or Privileges (opens in a new tab)
Base weaknessOWASP Top 10 A10:2025: Mishandling of Exceptional Conditions (opens in a new tab)
The product does not handle or incorrectly handles when it has insufficient privileges to access resources or functionality as specified by their permissions. This may cause it to follow unexpected code paths that may leave the product in an invalid state.
Architecture and Design · Separation of Privilege
Compartmentalize the system to have "safe" areas where trust boundaries can be unambiguously drawn. Do not allow sensitive data to go outside of the trust boundary and always be careful when interfacing with a compartment outside of the safe area.
Implementation
Always check to see if you have successfully accessed a resource or system functionality, and use proper error handling if it is unsuccessful. Do this even when you are operating in a highly privileged mode, because errors or environmental conditions might still cause a failure.
OWASP Cheat Sheets
Logging (opens in a new tab)
Error Handling (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

Community reviews

Loading reviews…

Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 29 Oct 2026, 16:37 UTC

WeaknessesCWE-825, CWE-280

Technical details

References

Community reviews

Related threats