CVE-2026-27831

rldns Vulnerable to Heap-based Out-of-Bounds Read

CVSS 7.5 HIGHEPSS 0.4%CWE-125

Vexday Risk Score

21Bajo

Decisión SSVC (CISA)

Track

Sin señal de explotación → monitorear

CVSS 7.5EPSS 0.4%KEV nãoPoC —Nuclei —Metasploit —Patch —

Ciclo de vida

26 feb 2026Publicada en NVD

Recomendación: Monitorear — sin señal de explotación por ahora.

rldns is an open source DNS server. Version 1.3 has a heap-based out-of-bounds read that leads to denial of service. Version 1.4 contains a patch for the issue.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Productos afectados

bluedragonsecurity · rldns

Referencias

https://github.com/bluedragonsecurity/rldns-1.3-heap-out-of-bounds-vulnerability-fixed-in-rldns-1.4 https://github.com/bluedragonsecurity/rldns_archives/blob/main/diff/rldns-1.4.diff https://github.com/bluedragonsecurity/rldns/security/advisories/GHSA-fv38-45j4-g9x4 https://medium.com/@w1sdom/heap-based-buffer-over-read-vulnerability-in-rldns-1-3-5da3bccdc031