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CVE-2026-63387

🗓️ 20 Aug 2026 17:53:41Reported by Debian Security Bug TrackerType 
debiancve
 debiancve
🔗 security-tracker.debian.org👁 5 Views

Off-by-one stack buffer overflow in libevent evdns.c crashes process via crafted DNS response.

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CVE-2026-63387 Libevent: Off-by-one stack buffer overflow in dnsname_to_labels via crafted DNS server response
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Rows per page
OSOS VersionArchitecturePackagePackage VersionFilename
Debian11alllibevent2.1.12-stable-1libevent_2.1.12-stable-1_all.deb
Debian12alllibevent2.1.12-stable-8libevent_2.1.12-stable-8_all.deb
Debian13alllibevent2.1.12-stable-10libevent_2.1.12-stable-10_all.deb
Debian14alllibevent2.1.13-stable-1libevent_2.1.13-stable-1_all.deb
Debian999alllibevent2.1.13-stable-1libevent_2.1.13-stable-1_all.deb

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20 Aug 2026 17:53Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.17
EPSS0.00349
5