CVE search · CVE-2026-55999
CVE-2026-55999
high 7.8
Local attackers with a X connection able to provide PCX fonts to the X server xorg-server before 21.2.24 and xwayland before 24.1.13 could cause a heap buffer overflow via SetFont due to missing glyph boundary checks.
Details
- Status
- Analyzed
- Published
- Last changed
- Source
- meissner@suse.de
- Weakness
- CWE-122
Severity
| Version | Score | Vector | Source |
|---|---|---|---|
| CVSS 3.1 | high 8.5 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H |
meissner@suse.deSecondary |
| CVSS 3.1 | high 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
nvd@nist.govPrimary |
Affected products
Vendor and product from the NVD’s CPE applicability statements. Versions and conditions are on the NVD’s page.
References
- https://gitlab.freedesktop.org/xorg/xserver/-/commit/fbf7bac22e2c6bd627fb042742a23318263edae1Patch
- https://www.openwall.com/lists/oss-security/2026/07/08/2Mailing ListPatchThird Party Advisory