Servers and applications
CVE-2016-4053
Squid 3.x before 3.5.17 and 4.x before 4.0.9 allow remote attackers to obtain sensitive stack layout information via crafted Edge Side Includes (ESI) responses, related to incorrect use of assert and compiler optimization.
- Severity
- Low 3.7
- Published
- 25 Apr 2016
- Last changed
- 17 Jun 2026
- Added to UpHeron
- 1 Nov 2026
- Exploit chance
- 14% in the next 30 daysHigher than 96% of CVEs. EPSS by FIRST, 11 Nov 2026
- Weakness
- Memory buffer errors (CWE-119)
- Attack
- Over the network · Only under certain conditions · No login needed · No user action needed
- Attacker can
- Read some data
- CVSS vector
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N- Sources
- NVD
Affected software
| Software | Affected versions |
|---|---|
SquidServers and applications · cpe:a:squid-cache:squid |
All 140 release lines
|