CVE-2023-46847 HIGH

CVE-2023-46847: Squid: denial of service in http digest authentication

Weakness CWE-120
Published November 3, 2023
Last update February 25, 2026
View on NVD All CVEs

CVSS base score

8.6/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality Low
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H

What the vulnerability does

01Description

Squid is vulnerable to a Denial of Service, where a remote attacker can perform buffer overflow attack by writing up to 2 MB of arbitrary data to heap memory when Squid is configured to accept HTTP Digest Authentication.

Key dates

02Disclosure timeline

November 3, 2023 CVE published
February 25, 2026 Record updated