CVE-2026-63381

Publication date 21 August 2026

Last updated 1 September 2026

Ubuntu priority

Medium

Why this priority?

Description

(Libevent is an event notification library. Prior to 2.1.13 and 2.2.2-a ...)

Status

Package Ubuntu Release Status
libevent 26.04 LTS resolute
Fixed 2.1.12-stable-10ubuntu0.1
24.04 LTS noble
Fixed 2.1.12-stable-9ubuntu2.1
22.04 LTS jammy
Fixed 2.1.12-stable-1ubuntu0.1
20.04 LTS focal
Fixed 2.1.11-stable-1ubuntu0.1~esm1
18.04 LTS bionic
Fixed 2.1.8-stable-4ubuntu0.1~esm1
16.04 LTS xenial
Not affected
14.04 LTS trusty
Not affected

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Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
libevent

Severity score breakdown

CVSS version: CVSS v4.0

Base score 5.8 · Medium

Vector: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N

References

Related Ubuntu Security Notices (USN)

    • USN-8710-1
    • libevent vulnerabilities
    • 1 September 2026

Other references

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