VULNERABILITY INTELLIGENCE

CVE-2019-12526

CVSS score9.8 CRITICAL
EPSS probability20.25%
CISA KEVNot currently listed
Published2019-11-26
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

An issue was discovered in Squid before 4.9. URN response handling in Squid suffers from a heap-based buffer overflow. When receiving data from a remote server in response to an URN request, Squid fails to ensure that the response can fit within the buffer. This leads to attacker controlled data overflowing in the heap.

Weakness classification

  • nvd@nist.gov: CWE-787

Primary references