CVE-2026-27853

MEDIUM

5.9

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.

Details CVE

Score CVSS v3.15.9

SeveriteMEDIUM

Vecteur CVSSCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Vecteur d'attaqueNETWORK

ComplexiteHIGH

Privileges requisNONE

Interaction utilisateurNONE

Publie3/31/2026

Derniere modification4/1/2026

Sourcenvd

Observations honeypot0

Faiblesses (CWE)

CWE-787

References

https://www.dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-2026-02.html(security@open-xchange.com)

Correlations IOC

Aucune correlation enregistree

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