CVE-2026-27831

Published: Feb 26, 2026Modified: Jun 17, 2026Deferred

7.5

Vector

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

Exploitability: 3.9 / Impact: 3.6

Source: security-advisories@github.com (Secondary)

Description

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.

Related CWEs

CWE-125

Out-of-bounds Read

The product reads data past the end, or before the beginning, of the intended buffer.

References (5)

https://github.com/bluedragonsecurity/rldns-1.3-heap-out-of-bounds-vulnerability-fixed-in-rldns-1.4

Source: security-advisories@github.com

https://github.com/bluedragonsecurity/rldns/security/advisories/GHSA-fv38-45j4-g9x4

Source: security-advisories@github.com

https://github.com/bluedragonsecurity/rldns_archives/blob/main/diff/rldns-1.4.diff

Source: security-advisories@github.com

https://medium.com/@w1sdom/heap-based-buffer-over-read-vulnerability-in-rldns-1-3-5da3bccdc031

Source: security-advisories@github.com

https://github.com/bluedragonsecurity/rldns/security/advisories/GHSA-fv38-45j4-g9x4

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

Timeline

No history available yet.