Libevent: Prior to 2.1.13 and 2.2.2-a ...) (CVE-2026-63384)
A vulnerability exists in the libevent event notification library affecting specific stable versions prior to 2.1.13 and 2.2.2-a. The issue impacts multiple Ubuntu LTS releases where these libevent versions are used. The vulnerability has a medium severity rating and no known exploits in the wild have been reported. No patch or remediation details are provided in the available data.
AI Analysis
Technical Summary
Libevent versions prior to 2.1.13 and 2.2.2-a, including several stable releases used in Ubuntu LTS distributions, contain a vulnerability identified as CVE-2026-63384. The CVSS 4.0 vector indicates a network attack vector with low complexity and no privileges or user interaction required, resulting in high impact on availability. The vulnerability affects multiple Ubuntu LTS versions from 14.04 through 26.04. No vendor advisory or patch information is provided in the data.
Potential Impact
The vulnerability allows an unauthenticated attacker to cause a high impact on the availability of systems running affected libevent versions. There are no known exploits in the wild. The impact is limited to denial of service or availability degradation based on the CVSS vector.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, users should monitor vendor channels for updates and consider mitigating exposure by limiting network access to affected services if feasible.
Libevent: Prior to 2.1.13 and 2.2.2-a ...) (CVE-2026-63384)
Description
A vulnerability exists in the libevent event notification library affecting specific stable versions prior to 2.1.13 and 2.2.2-a. The issue impacts multiple Ubuntu LTS releases where these libevent versions are used. The vulnerability has a medium severity rating and no known exploits in the wild have been reported. No patch or remediation details are provided in the available data.
CVSS v4.0
Affected software
pkg:deb/ubuntu/libevent?arch=source&distro=trustypkg:deb/ubuntu/libevent?arch=source&distro=xenialpkg:deb/ubuntu/libevent?arch=source&distro=bionicpkg:deb/ubuntu/libevent?arch=source&distro=focalpkg:deb/ubuntu/libevent?arch=source&distro=jammypkg:deb/ubuntu/libevent?arch=source&distro=noblepkg:deb/ubuntu/libevent?arch=source&distro=resoluteRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Libevent versions prior to 2.1.13 and 2.2.2-a, including several stable releases used in Ubuntu LTS distributions, contain a vulnerability identified as CVE-2026-63384. The CVSS 4.0 vector indicates a network attack vector with low complexity and no privileges or user interaction required, resulting in high impact on availability. The vulnerability affects multiple Ubuntu LTS versions from 14.04 through 26.04. No vendor advisory or patch information is provided in the data.
Potential Impact
The vulnerability allows an unauthenticated attacker to cause a high impact on the availability of systems running affected libevent versions. There are no known exploits in the wild. The impact is limited to denial of service or availability degradation based on the CVSS vector.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, users should monitor vendor channels for updates and consider mitigating exposure by limiting network access to affected services if feasible.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- UBUNTU-CVE-2026-63384
- Osv Schema Version
- 1.7.0
- Aliases
- []
- Ecosystems
- ["Ubuntu:14.04:LTS","Ubuntu:16.04:LTS","Ubuntu:18.04:LTS","Ubuntu:20.04:LTS","Ubuntu:22.04:LTS","Ubuntu:24.04:LTS","Ubuntu:26.04:LTS"]
- Database Specific Severity
- null
- Cvss Version
- 4.0
Threat ID: 6a8c4c53acd9273b499be7d3
Added to database: 08/24/2026, 13:51:16 UTC
Last enriched: 08/24/2026, 14:06:55 UTC
Last updated: 08/24/2026, 22:52:13 UTC
Views: 2
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