VULNERABILITY INTELLIGENCE

CVE-2026-27853

CVSS score5.9 MEDIUM
EPSS probability0.51%
CISA KEVNot currently listed
Published2026-03-31
Last modified2026-07-25
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

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.

Weakness classification

  • 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-787

Primary references