CVE-2026-63387

CVE

Threat entity extracted from intelligence sources

Frequency

occurrences

First Seen

September 9, 2026

Last Seen

September 29, 2026

API

Exploited in Wild

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Ransomware Use

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Public Exploits

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Attack Vector

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Vulnerability Overview

Exploitation Activity

Exploitation Intelligence

Critical libevent Vulnerabilities Affecting Multiple Ubuntu Versions74.0

Two vulnerabilities in the libevent library were discovered by Michał Majchrowicz and Marcin Wyczechowski, allowing remote and local attackers to potentially execute arbitrary code or cause denial of service. The vulnerabilities, identified as CVE-2026-63387 and CVE-2026-63388, affect Ubuntu version...

Critical Security Flaws in Fedora libevent 2.1.13 Require Immediate Attention57.9

Fedora has released critical security updates for libevent version 2.1.13, addressing multiple vulnerabilities including CVE-2026-63379, CVE-2026-63381, CVE-2026-63382, CVE-2026-63383, CVE-2026-63384, CVE-2026-63385, CVE-2026-63387, and CVE-2026-63388. These vulnerabilities, published on August 20,...