๐Ÿ›ก๏ธ CVE-2026-27853
๐ŸŸก CVSS 5.9 โ€” Medium โœ… No Known Exploit CWE-787 NVD
5.9
CVSS Score
0 Low4 Medium7 High9 Critical10

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

Severity MEDIUM
CVSS Score 5.9
CVSS Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE CWE-787
Public Exploit โœ… No
Source NVD
Published 2026-03-31
Updated 2026-06-02
Modified 2026-04-14
Fix URL N/A

Affected Packages

Software From version Fixed in
dnsdist 2.0.0 2.0.3

Similar Threats

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