NVD Vulnerability Detail
Search Exploit, PoC
CVE-2026-12245
Summary

NSD from version 4.13.0 has a heap use-after-free bug in logging errors on TLS connections, causing a crash of the server process, which can be triggered trivially by sending a DNS query over a DoT connection, and closing the connection without reading the response.

Publication Date June 25, 2026, 4:16 p.m.
Registration Date June 27, 2026, 4:25 a.m.
Last Update June 26, 2026, 11:07 a.m.
CVSS3.1 : HIGH
スコア 7.5
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
攻撃元区分(AV) ネットワーク
攻撃条件の複雑さ(AC)
攻撃に必要な特権レベル(PR) 不要
利用者の関与(UI) 不要
影響の想定範囲(S) 変更なし
機密性への影響(C) なし
完全性への影響(I) なし
可用性への影響(A)
Affected software configurations
Configuration1 or higher or less more than less than
cpe:2.3:a:nlnetlabs:nsd:*:*:*:*:*:*:*:* 4.13.0 4.14.3
Related information, measures and tools
Common Vulnerabilities List