CVE-2007-0248: Squid

Medium severity, CVSS 5.0. EPSS: 6.9% chance of exploitation in the next 30 days.

The aclMatchExternal function in Squid before 2.6.STABLE7 allows remote attackers to cause a denial of service (crash) by causing an external_acl queue overload, which triggers an infinite loop.

Affected products

• Squid Squid: version 2.6.stable6 only

Published 2007-01-16. Last modified 2026-06-16.