CVE-2026-93543 in libXi

Summary

by MITRE • 09/24/2026

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.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

• Responsible: Suse
• Reservation: 09/18/2026
• Disclosure: 09/24/2026
• Moderation: accepted
• Entry: VDB-409499
• CPE: ready
• CWE: CWE-125 (confirmed)
• CVSS: 7.4 (CNA)
• EPSS: 0.00000
• KEV: no
• Activities: very low

Sources

• MITRE: https://www.cve.org/CVERecord?id=CVE-2026-93543
• NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-93543
• CVE Details: https://www.cvedetails.com/cve/CVE-2026-93543/