🛡️ CVE-2025-62231 — aix

🟠 CVSS 7.3 — High ✅ No Known Exploit CWE-190 NVD

7.3

CVSS Score

0 Low4 Medium7 High9 Critical10

Description

A flaw was identified in the X.Org X server’s X Keyboard (Xkb) extension where improper bounds checking in the XkbSetCompatMap() function can cause an unsigned short overflow. If an attacker sends specially crafted input data, the value calculation may overflow, leading to memory corruption or a crash.

How this vulnerability can be exploited

This issue can be reached with local access to the system, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity low, availability high.

CVSS metrics in full

The score comes from this vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H

Attack vector: Local — a local account, shell or session on the host is needed.
Attack complexity: Low — the attack works reliably, with no preparation.
Privileges required: Low — an ordinary user account is enough.
User interaction: None — nobody has to be tricked into anything.
Scope: Unchanged — the damage stays inside the vulnerable component.
Confidentiality impact: High — total loss, or loss the attacker controls.
Integrity impact: Low — limited, and the attacker does not choose what is affected.
Availability impact: High — total loss, or loss the attacker controls.

Weakness class

CVE-2025-62231 is classified as CWE-190: Integer Overflow or Wraparound. Arithmetic produces a value too large for its type and wraps around, so a later size or bounds check passes when it should not.

Affected software

CVE-2025-62231 is recorded against 11 packages.

aix
debian-linux
enterprise-linux
enterprise-linux-aus
enterprise-linux-els
enterprise-linux-eus
enterprise-linux-tus
enterprise-linux-update-services-for-sap-solutions
vios
x-server (fixed in 21.1.19)
xwayland (fixed in 24.1.9)

Timeline and source

Published on 30 October 2025 and last revised on 1 July 2026. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from NVD.

References

Other advisories for this package

aix has other advisories on record. If you are patching this one, these are worth checking on the same host:

CVE-2026-6732 (6.5 Medium, published 23 Apr 2026)
CVE-2026-0992 (2.9 Low, published 15 Jan 2026)
CVE-2026-0990 (5.9 Medium, published 15 Jan 2026)
CVE-2026-0989 (3.7 Low, published 15 Jan 2026)
CVE-2025-36096 (9.0 Critical, published 13 Nov 2025)
CVE-2025-36251 (9.6 Critical, published 13 Nov 2025)
CVE-2025-36250 (10.0 Critical, published 13 Nov 2025)
CVE-2025-36236 (8.2 High, published 13 Nov 2025)

Same weakness in other software

These advisories are the same class of weakness (CWE-190: Integer Overflow or Wraparound) in other software:

CVE-2022-36015 (8.0 High, published 13 Jul 2026)
CVE-2023-25667 (8.0 High, published 13 Jul 2026)
CVE-2023-25662 (8.0 High, published 13 Jul 2026)
CVE-2022-23567 (8.0 High, published 9 Jul 2026)
CVE-2017-12864 (8.0 High, published 9 Jul 2026)
CVE-2017-12863 (8.0 High, published 9 Jul 2026)
CVE-2022-23575 (8.0 High, published 9 Jul 2026)
CVE-2017-1000450 (8.0 High, published 2 Jul 2026)

CVE-2025-62231 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

BellSoft — BELL-CVE-2025-62231 Debian — DEBIAN-CVE-2025-62231 Ubuntu — UBUNTU-CVE-2025-62231

Details

Severity HIGH

CVSS Score 7.3

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

CWE CWE-190

Public Exploit ✅ No

Source NVD

Published 2025-10-30

Updated 2026-08-20

Modified 2026-07-01

Fix URL http://www.openwall.com/lists/oss-security/2025/10/28/7

Affected Packages

Software	From version	Fixed in
aix	—	—
debian-linux	—	—
enterprise-linux	—	—
enterprise-linux-aus	—	—
enterprise-linux-els	—	—
enterprise-linux-eus	—	—
enterprise-linux-tus	—	—
enterprise-linux-update-services-for-sap-solutions	—	—
vios	—	—
x-server	—	21.1.19
xwayland	—	24.1.9

References

Third Party Advisory https://access.redhat.com/errata/RHSA-2025:19432

Third Party Advisory https://access.redhat.com/errata/RHSA-2025:19433

Third Party Advisory https://access.redhat.com/errata/RHSA-2025:19434

Third Party Advisory https://access.redhat.com/errata/RHSA-2025:19435

Third Party Advisory https://access.redhat.com/errata/RHSA-2025:19489

Third Party Advisory https://access.redhat.com/errata/RHSA-2025:19623

Third Party Advisory https://access.redhat.com/errata/RHSA-2025:19909

Third Party Advisory https://access.redhat.com/errata/RHSA-2025:20958

Third Party Advisory https://access.redhat.com/errata/RHSA-2025:20960

Third Party Advisory https://access.redhat.com/errata/RHSA-2025:20961

Third Party Advisory https://access.redhat.com/errata/RHSA-2025:21035

Third Party Advisory https://access.redhat.com/errata/RHSA-2025:22040

Third Party Advisory https://access.redhat.com/errata/RHSA-2025:22041

Third Party Advisory https://access.redhat.com/errata/RHSA-2025:22051

Third Party Advisory https://access.redhat.com/errata/RHSA-2025:22055

Third Party Advisory https://access.redhat.com/errata/RHSA-2025:22056

Third Party Advisory https://access.redhat.com/errata/RHSA-2025:22077

Third Party Advisory https://access.redhat.com/errata/RHSA-2025:22096

Third Party Advisory https://access.redhat.com/errata/RHSA-2025:22164

Third Party Advisory https://access.redhat.com/errata/RHSA-2025:22167

Third Party Advisory https://access.redhat.com/errata/RHSA-2025:22364

Third Party Advisory https://access.redhat.com/errata/RHSA-2025:22365

Third Party Advisory https://access.redhat.com/errata/RHSA-2025:22426

Third Party Advisory https://access.redhat.com/errata/RHSA-2025:22427

Third Party Advisory https://access.redhat.com/errata/RHSA-2025:22667

Third Party Advisory https://access.redhat.com/errata/RHSA-2025:22729

Third Party Advisory https://access.redhat.com/errata/RHSA-2025:22742

Third Party Advisory https://access.redhat.com/errata/RHSA-2025:22753

Third Party Advisory https://access.redhat.com/errata/RHSA-2026:0031

Third Party Advisory https://access.redhat.com/errata/RHSA-2026:0033

Third Party Advisory https://access.redhat.com/errata/RHSA-2026:0034

Third Party Advisory https://access.redhat.com/errata/RHSA-2026:0035

Third Party Advisory https://access.redhat.com/errata/RHSA-2026:0036

Third Party Advisory https://access.redhat.com/security/cve/CVE-2025-62231

Issue Tracking, Third Party Advisory https://bugzilla.redhat.com/show_bug.cgi?id=2402660

Mailing List, Vendor Advisory https://lists.x.org/archives/xorg-announce/2025-October/003635.html

Mailing List, Patch http://www.openwall.com/lists/oss-security/2025/10/28/7

Mailing List, Third Party Advisory https://lists.debian.org/debian-lts-announce/2025/10/msg00033.html

🔗 NVD 🔗 Mitre ✅ Fix / Advisory

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🛡️ CVE-2025-62231 — aix

Description

How this vulnerability can be exploited

CVSS metrics in full

Weakness class

Affected software

Timeline and source

References

Other advisories for this package

Same weakness in other software

CVE-2025-62231 on other distributions

Is aix part of your stack?

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