CVE-2025-26596
CVE-2025-26596 · Xorg: xwayland: heap overflow in xkbwritekeysyms()
This page contains facts from public vulnerability sources. Check the original advisory before updating.
This page shows selected source facts. See the linked advisories for the complete description and affected versions.
A heap overflow flaw was found in X.Org and Xwayland. The computation of the length in XkbSizeKeySyms() differs from what is written in XkbWriteKeySyms(), which may lead to a heap-based buffer overflow.
CVSS 7.8 · High · EPSS 0.4% · Fix available
- Published
- Updated
Stack: system
Affected products and versions
red hat enterprise linux 10
- Versions
- ≥ 0:24.1.5-3.el10_0: Not affected (rpm)
No fix published
red hat enterprise linux 6 extended lifecycle support - extension
- Versions
- ≥ 0:1.1.0-25.el6_10: Not affected (rpm)
No fix published
red hat enterprise linux 7 extended lifecycle support
- Versions
- ≥ 0:1.8.0-36.el7_9: Not affected (rpm)
No fix published
red hat enterprise linux 7 extended lifecycle support
- Versions
- ≥ 0:1.20.4-30.el7_9: Not affected (rpm)
No fix published
red hat enterprise linux 8
- Versions
- ≥ 0:1.13.1-15.el8_10: Not affected (rpm)
No fix published
red hat enterprise linux 8.2 advanced update support
- Versions
- ≥ 0:1.9.0-15.el8_2.13: Not affected (rpm)
No fix published
red hat enterprise linux 8.4 advanced mission critical update support
- Versions
- ≥ 0:1.11.0-8.el8_4.12: Not affected (rpm)
No fix published
red hat enterprise linux 8.4 telecommunications update service
- Versions
- ≥ 0:1.11.0-8.el8_4.12: Not affected (rpm)
No fix published
red hat enterprise linux 8.4 update services for sap solutions
- Versions
- ≥ 0:1.11.0-8.el8_4.12: Not affected (rpm)
No fix published
red hat enterprise linux 8.6 advanced mission critical update support
- Versions
- ≥ 0:1.12.0-6.el8_6.13: Not affected (rpm)
No fix published
red hat enterprise linux 8.6 telecommunications update service
- Versions
- ≥ 0:1.12.0-6.el8_6.13: Not affected (rpm)
No fix published
red hat enterprise linux 8.6 update services for sap solutions
- Versions
- ≥ 0:1.12.0-6.el8_6.13: Not affected (rpm)
No fix published
red hat enterprise linux 8.8 extended update support
- Versions
- ≥ 0:1.12.0-15.el8_8.12: Not affected (rpm)
No fix published
red hat enterprise linux 9
- Versions
- ≥ 0:1.14.1-1.el9_5.1: Not affected (rpm)
No fix published
red hat enterprise linux 9
- Versions
- ≥ 0:1.20.11-28.el9_6: Not affected (rpm)
No fix published
red hat enterprise linux 9
- Versions
- ≥ 0:23.2.7-3.el9_6: Not affected (rpm)
No fix published
red hat enterprise linux 9.0 update services for sap solutions
- Versions
- ≥ 0:1.11.0-22.el9_0.13: Not affected (rpm)
No fix published
red hat enterprise linux 9.2 extended update support
- Versions
- ≥ 0:1.12.0-14.el9_2.10: Not affected (rpm)
No fix published
red hat enterprise linux 9.4 extended update support
- Versions
- ≥ 0:1.13.1-8.el9_4.5: Not affected (rpm)
No fix published
red hat enterprise linux 6
No fix published
red hat enterprise linux 8
No fix published
xorg-server Debian:12
- Versions
- 2:21.1.7-3
- 2:21.1.7-3+deb12u1
- 2:21.1.7-3+deb12u2
- 2:21.1.7-3+deb12u3
- 2:21.1.7-3+deb12u4
- 2:21.1.7-3+deb12u5
- 2:21.1.7-3+deb12u6
- 2:21.1.7-3+deb12u7
- 2:21.1.7-3+deb12u8
- Affected ranges
- ECOSYSTEM: < 2:21.1.7-3+deb12u9
Update to 2:21.1.7-3+deb12u9
xorg-server Debian:13
- Affected ranges
- ECOSYSTEM: < 2:21.1.16-1
Update to 2:21.1.16-1
xorg-server Debian:14
- Affected ranges
- ECOSYSTEM: < 2:21.1.16-1
Update to 2:21.1.16-1
Original sources
- https://access.redhat.com/errata/RHSA-2025:2500
- https://access.redhat.com/errata/RHSA-2025:2502
- https://access.redhat.com/errata/RHSA-2025:2861
- https://access.redhat.com/errata/RHSA-2025:2862
- https://access.redhat.com/errata/RHSA-2025:2865
- https://access.redhat.com/errata/RHSA-2025:2866
- https://access.redhat.com/errata/RHSA-2025:2873
- https://access.redhat.com/errata/RHSA-2025:2874
- https://access.redhat.com/errata/RHSA-2025:2875
- https://access.redhat.com/errata/RHSA-2025:2879
- https://access.redhat.com/errata/RHSA-2025:2880
- https://access.redhat.com/errata/RHSA-2025:3976
- https://access.redhat.com/errata/RHSA-2025:7163
- https://access.redhat.com/errata/RHSA-2025:7165
- https://access.redhat.com/errata/RHSA-2025:7458
- https://access.redhat.com/security/cve/CVE-2025-26596
- https://bugzilla.redhat.com/show_bug.cgi?id=2345256
- https://lists.debian.org/debian-lts-announce/2025/02/msg00036.html
- https://nvd.nist.gov/vuln/detail/CVE-2025-26596