EUVD-2026-16067
CVSS Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Lifecycle Timeline
4Description
Squid is a caching proxy for the Web. Prior to version 7.5, due to improper input validation, Squid is vulnerable to out of bounds read when handling ICP traffic. This problem allows a remote attacker to receive small amounts of memory potentially containing sensitive information when responding with errors to invalid ICP requests. This attack is limited to Squid deployments that explicitly enable ICP support (i.e. configure non-zero `icp_port`). This problem cannot be mitigated by denying ICP queries using `icp_access` rules. Version 7.5 contains a patch.
Analysis
Squid prior to version 7.5 contains an out-of-bounds read vulnerability in ICP (Internet Cache Protocol) traffic handling due to improper input validation, classified as CWE-125. Remote attackers can exploit this to leak small amounts of process memory potentially containing sensitive information by sending malformed ICP requests to deployments with explicitly enabled ICP support (non-zero icp_port configuration). …
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Remediation
Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.
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Priority Score
Vendor Status
Ubuntu
Priority: Medium| Release | Status | Version |
|---|---|---|
| focal | needs-triage | - |
| jammy | needs-triage | - |
| noble | needs-triage | - |
| questing | needs-triage | - |
| upstream | needs-triage | - |
| Release | Status | Version |
|---|---|---|
| xenial | needs-triage | - |
| bionic | needs-triage | - |
| jammy | DNE | - |
| noble | DNE | - |
| questing | DNE | - |
| upstream | needs-triage | - |
Debian
| Release | Status | Fixed Version | Urgency |
|---|---|---|---|
| bullseye | vulnerable | 4.13-10+deb11u3 | - |
| bullseye (security) | vulnerable | 4.13-10+deb11u6 | - |
| bookworm | vulnerable | 5.7-2+deb12u5 | - |
| bookworm (security) | vulnerable | 5.7-2+deb12u4 | - |
| trixie, trixie (security) | vulnerable | 6.13-2+deb13u1 | - |
| forky | vulnerable | 7.4-1 | - |
| sid | fixed | 7.5-1 | - |
| (unstable) | fixed | 7.5-1 | - |
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External POC / Exploit Code
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