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CVE-2026-93543
Out-of-bounds read in libXi's XI2 class parser
High7.4EPSS 0.26%
- Published
- Updated
- Reserved
- Assigned by
- suse
Description
An out-of-bounds read in libXi's XI2 class parser in libXi before 1.8.4 could be used by malicious X servers to crash an attached X client.
Timeline
ID reserved
By suse
- 6 days later
· 6 days later
Published
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| suseCNA (assigner) | 3.1 | High7.4 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:N/A:H |
| NVDNVD · Awaiting Analysis | 3.1 | High7.4 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.26% · top 82% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.4.
Weakness
Affected products
References (1)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2026-93543)Record last updated .