CVE-2026-27853

תיאור (מקור, אנגלית)

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.

מדדים

CVSS 3.1

7.5 (HIGH) מקור הציון: NVD CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS — סבירות ניצול

0% (אחוזון 000) נכון ל-26/7/2026

CWE

CWE-787

מוצרים מושפעים

powerdns: dnsdist

קישורים

• https://www.dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-2026‮… Vendor Advisory