CVE-2026-55999
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
xorg-server / xwayland glamor font atlas Heap Buffer Overflow
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.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
xorg-server
- Vendor
- X.Org
- Product
- xorg-server
- Platforms
- Unknown
- Default status
unaffected- Package
- xorg-server
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 0 | affected | rpm | 21.1.24 | Unavailable | None listed |
xwayland
- Vendor
- X.Org
- Product
- xwayland
- Platforms
- Unknown
- Default status
unaffected- Package
- xwayland
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 0 | affected | rpm | 24.1.13 | Unavailable | None listed |