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CVE-2026-27853

nvd nist
Published: Mar 31, 2026Modified: Apr 14, 2026

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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: NVD

Description

An attacker might be able to trigger an out-of-bounds write by sending crafted DNS responses to a DNSdist using the DNSQuestion:changeName or DNSResponse:changeName methods in custom Lua code. In some cases the rewritten packet might become larger than the initial response and even exceed 65535 bytes, potentially leading to a crash resulting in denial of service.

Affected (2)

Products: Powerdns: Dnsdist
1 product
Dnsdist
Configuration A
2 vulnerable
Vulnerable SoftwareAffected Versions
Powerdns
From 1.9.0 to 1.9.12
From 2.0.0 to 2.0.3

References (1)

Timeline

No history available yet.