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NVD Vulnerability Details :

CVE-2026-27831

Awaiting Analysis

Source-security-advisories@github.com

Published At-26 Feb, 2026 | 01:16

Updated At-27 Feb, 2026 | 16:16

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.

Date Added	Due Date	Vulnerability Name	Required Action
	N/A

Metrics

Type	Version	Base score	Base severity	Vector
Secondary	3.1	7.5	HIGH	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Type: Secondary

Version: 3.1

Base score: 7.5

Base severity: HIGH

Vector:

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

Weaknesses

CWE ID	Type	Source
CWE-125	Secondary	security-advisories@github.com

CWE ID: CWE-125

Type: Secondary

Source: security-advisories@github.com

References

Hyperlink	Source	Resource
https://github.com/bluedragonsecurity/rldns-1.3-heap-out-of-bounds-vulnerability-fixed-in-rldns-1.4	security-advisories@github.com	N/A
https://github.com/bluedragonsecurity/rldns/security/advisories/GHSA-fv38-45j4-g9x4	security-advisories@github.com	N/A
https://github.com/bluedragonsecurity/rldns_archives/blob/main/diff/rldns-1.4.diff	security-advisories@github.com	N/A
https://medium.com/@w1sdom/heap-based-buffer-over-read-vulnerability-in-rldns-1-3-5da3bccdc031	security-advisories@github.com	N/A
https://github.com/bluedragonsecurity/rldns/security/advisories/GHSA-fv38-45j4-g9x4	134c704f-9b21-4f2e-91b3-4a467353bcc0	N/A