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CVE-2026-27853

DNSdist

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.

CVSS 5.9EPSS 0.48900000000000005%Risk 0.62
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Published
2026-03-31 12:16:27
Affected versions
unknown
Type
Core software
Last modified
2026-07-25 10:10:00
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H