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VulnerabilityPublished Updated

CVE-2026-94282: x.org libXi · Out-of-bounds Read

Affects x.org libXiSource CVE Database V5

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Not known to be exploited · CVSS 5.6 Medium : upgrade to 1.8.4 when convenient.

Data as of 12 Nov 2026, 23:25 UTC

CVSS 3.1 base score
5.6Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.1% chance of exploitation in 30 days – higher than 2% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 1.8.4
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 28 Sep 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 13 Nov 2026.

What to do

Upgrade libXi and x.org/libxi to 1.8.4.

Affected software

ProductAffectedFixed in
x.orglibXiAffected
  • <1.8.4
Fixed in
  • 1.8.4
X.orgx.org/libxipkg:deb/x.org/libxiOther threatsAffected
  • <1.8.4
Fixed in
  • 1.8.4

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

A fix is available in libXi version 1.8.4. Users and administrators should upgrade to libXi 1.8.4 or later to remediate this vulnerability. No other mitigation or workaround is indicated.

Description

CVE-2026-94282 is an out-of-bounds read vulnerability in the libXi library of x.org, specifically affecting versions before 1.8.4. The flaw occurs in the XI2 enter/leave/focus cookie conversion code and could be exploited by a malicious X server to crash an attached X client. This vulnerability has a medium severity rating with a CVSS score of 5.6.

References

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