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.
Analysis and contextual insights are available on OpenCVE Cloud.
No vendor fix or workaround currently provided.
Additional remediation guidance may be available on OpenCVE Cloud.
Tracking
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Wed, 08 Jul 2026 12:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Wed, 08 Jul 2026 09:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
X.org
X.org xorg-server X.org xwayland |
|
| Vendors & Products |
X.org
X.org xorg-server X.org xwayland |
Wed, 08 Jul 2026 08:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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. | |
| Title | xorg-server / xwayland glamor font atlas Heap Buffer Overflow | |
| Weaknesses | CWE-122 | |
| References |
| |
| Metrics |
cvssV3_1
|
Status: PUBLISHED
Assigner: suse
Published:
Updated: 2026-07-08T12:10:11.301Z
Reserved: 2026-06-18T09:26:55.988Z
Link: CVE-2026-55999
Updated: 2026-07-08T12:10:08.315Z
No data.
No data.
OpenCVE Enrichment
Updated: 2026-07-08T09:30:04Z