Quick answers
- Is CVE-2026-93544 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-93544 being exploited in the wild.
- How severe is CVE-2026-93544?
- Medium severity, with a CVSS score of 6.5, published 24 September 2026.
- Which products and versions are affected?
- X.Org libXi before 1.8.4.
- Is there a fix for CVE-2026-93544?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-93544 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-93544?
- Check whether you run X.Org libXi at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
An out-of-bounds read vulnerability exists in libXi's XI2 XIQueryDevice reply parsing code due to insufficient bounds checking on the wire protocol data. The vulnerability is triggered when parsing device class information from a malicious X server response, allowing a network-adjacent attacker to read beyond allocated memory. A fix is available in libXi 1.8.4 and later.
Affected products
- X.Org libXi before 1.8.4
Timeline
- 2026-09-24: disclosed