High severity7.5NVD Advisory· Published Feb 26, 2026· Updated Apr 15, 2026

CVE-2026-27831

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.

Affected products

Bluedragonsecurity/Rldns Archivesreferences

Patches

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

References

github.com/bluedragonsecurity/rldns/security/advisories/GHSA-fv38-45j4-g9x4nvd
github.com/bluedragonsecurity/rldns_archives/blob/main/diff/rldns-1.4.diffnvd
medium.com/@w1sdom/heap-based-buffer-over-read-vulnerability-in-rldns-1-3-5da3bccdc031nvd

News mentions

No linked articles in our index yet.

cvss	0.488
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000