CVE-2026-109091
X.Org Server EDID DS_RANGES Out-Of-Bounds Write
- High 7.8
Description
A buffer overflow in handling EDID Display-Range descriptors in X.Org xwayland before 24.1.15 and X Server before 21.1.26 could be used by malicious monitors to crash the x server or execute cote.
Key facts
- Published
- 13 Nov 2026
- Last changed
- 14 Nov 2026
- Assigned by
- suse
- EPSS
- 0.186% likely to be exploited in the next 30 days, higher than 8.309% of CVEs (scores for 15 Nov 2026)
- SSVC (CISA)
- Exploitation: none; Automatable: no; Technical impact: total
Severity scores
Each score is shown as its source gave it. They are not averaged or merged.
- 7.8CVSS 3.1, Highfrom the CNA (suse)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Historical context and remediation
This reference retains the original CVE publication date. A recent record update does not mean a new attack occurred.
CAPEC-100 Overflow Buffers (CNA impact statement)
No explicit remediation statement is available on this page yet. Consult the original record and vendor references before choosing a fix.
Version statuses below come from the CNA. An “unaffected” version is not necessarily a currently supported release or proof of a patch date. EPSS is a dated risk estimate, not a count of historical attacks.
Affected products
| Vendor | Product | Versions |
|---|---|---|
| X.Org | xwayland |
|
| X.Org | xorg-x11-server |
|
Timeline
- 13 Nov 2026 Published