CVE-2026-94286
Publication date 28 September 2026
Last updated 20 October 2026
Ubuntu priority
Description
An out-of-bounds read in libXtst's RECORD reply parser in libXtst before 1.2.6 could be used by malicious X servers to crash attached X clients.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| libxtst | 26.10 stonking |
Fixed in 2:1.2.5-1ubuntu1
|
| 26.04 LTS resolute |
Fixed in 2:1.2.5-1ubuntu0.1
|
|
| 24.04 LTS noble |
Fixed in 2:1.2.3-1.1ubuntu0.1
|
|
| 22.04 LTS jammy |
Fixed in 2:1.2.3-1ubuntu0.22.04.1
|
|
| 20.04 LTS focal |
Fixed in 2:1.2.3-1ubuntu0.20.04.1~esm1
|
|
| 18.04 LTS bionic |
Fixed in 2:1.2.3-1ubuntu0.18.04.1~esm1
|
|
| 16.04 LTS xenial |
Fixed in 2:1.2.2-1ubuntu0.1~esm1
|
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CVSS version: CVSS v3.0
Base score
7.1 · High
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
References
Related Ubuntu Security Notices (USN)
- USN-8939-1
- libXtst vulnerabilities
- 19 October 2026