Squid is a caching proxy for the Web. In Squid versions prior to 7.2, a failure to redact HTTP authentication credentials in error handling allows information disclosure. The vulnerability allows a script to bypass browser security protections and learn the credentials a trusted client uses to authenticate. This potentially allows a remote client to identify security tokens or credentials used internally by a web application using Squid for backend load balancing. These attacks do not require Squid to be configured with HTTP authentication. The vulnerability is fixed in version 7.2. As a workaround, disable debug information in administrator mailto links generated by Squid by configuring squid.conf with email_err_data off.
CVE-2025-62168
Score elevated to 8.4 because EPSS predicts 63% probability of exploitation within the next 30 days (top 0.9% of all CVEs). NVD baseline CVSS 7.5 retained for reference. Confidence: see factors.
- High exploitation likelihood — EPSS 63%
A fix is available — apply it.
- CVSS v3
- 7.5
- EG Score
- 8.4(high)
- EG Risk
- 78(Track)EG Risk 78/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity84% × 45%Exploitation63% × 40%Automatability100% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 63%
- EPSS %ILE
- 99%
- KEV
- Not listed
Published
October 17, 2025
Last Modified
June 17, 2026
Advisory Details (3)
Auto-updated Jun 17, 2026oss-security - [CVE-2025-62168] SQUID-2025:2 Information Disclosure in Error handling
http://www.openwall.com/lists/oss-security/2025/11/05/6SQUID-2025:2 Information Disclosure in Error handling · Advisory · squid-cache/squid · GitHub
https://github.com/squid-cache/squid/security/advisories/GHSA-c8cc-phh7-xmxrcommit 0951a0681011 (squid-cache/squid)
Fix landed in squid-cache/squid commit 0951a0681011 — awaiting tagged release
https://github.com/squid-cache/squid/commit/0951a0681011dfca3d78c84fd7f1e19c78a4443fVendor Advisories for CVE-2025-62168(13)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
- RHSA-2025:21090Red Hat Product SecurityHigh
Red Hat Security Advisory: squid:4 security update
- RHSA-2025:21066Red Hat Product SecurityHigh
Red Hat Security Advisory: squid security update
- RHSA-2025:21065Red Hat Product SecurityHigh
Red Hat Security Advisory: squid security update
- RHSA-2025:21002Red Hat Product SecurityHigh
Red Hat Security Advisory: squid security update
- RHSA-2025:20935Red Hat Product SecurityHigh
Red Hat Security Advisory: squid security update
- RHSA-2025:19967Red Hat Product SecurityHigh
Red Hat Security Advisory: squid:4 security update
- RHSA-2025:19398Red Hat Product SecurityHigh
Red Hat Security Advisory: squid:4 security update
- RHSA-2025:19277Red Hat Product SecurityHigh
Red Hat Security Advisory: squid:4 security update
- +5 more
Patch Availability(14)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | squidclient (3.5.12-1ubuntu7.16+esm5) @ xenial | 2026-05-29 | ubuntu |
| redhat | squid-7:5.5-19.el9_6.2 | 2025-11-12 | redhat |
| redhat | squid-7:6.10-5.el10_0.1 | 2025-11-12 | redhat |
| redhat | squid:4-8040020251024000101.522a0ee4 | 2025-11-12 | redhat |
| redhat | squid-7:5.5-22.el9_7.1 | 2025-11-11 | redhat |
| redhat | squid-7:6.10-6.el10_1.1 | 2025-11-11 | redhat |
| redhat | squid:4-8020020251028004321.4cda2c84 | 2025-11-10 | redhat |
| redhat | squid:4-8080020251029094904.63b34585 | 2025-11-03 | redhat |
| redhat | squid:4-8060020251027230224.ad008a3a | 2025-10-30 | redhat |
| redhat | squid-7:5.2-1.el9_0.9 | 2025-10-28 | redhat |
| redhat | squid-7:3.5.20-17.el7_9.15 | 2025-10-28 | redhat |
| redhat | squid-7:5.5-5.el9_2.10 | 2025-10-28 | redhat |
| redhat | squid-7:5.5-13.el9_4.4 | 2025-10-28 | redhat |
| redhat | squid:4-8100020251023131551.489197e6 | 2025-10-27 | redhat |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Affected Packages
(6 across 6 ecosystems)
Alpine:v3.23(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| squid | — | 7.3-r0 | — |
Alpine:v3.24(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| squid | — | 7.3-r0 | — |
Debian:11(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| squid | 4.13-10 ... 4.13-10+deb11u5 (6 versions) | 4.13-10+deb11u6 | — |
Debian:12(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| squid | 5.7-2, 5.7-2+deb12u1, 5.7-2+deb12u2, 5.7-2+deb12u3 | 5.7-2+deb12u4 | — |
Debian:13(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| squid | 6.13-2 | 6.13-2+deb13u1 | — |
Debian:14(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| squid | 6.13-2, 7.1-1 | 7.2-1 | — |
Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Additional Vendor Advisories
(2)
Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.
Data Freshness Timeline
(refreshed 7× in last 7d / 24× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
Showing the most recent 100 of 116 total refreshes for this CVE.
- 2026-09-18 19:27 UTCEPSS rescore
- 2026-09-17 19:30 UTCEPSS rescore
- 2026-09-16 14:07 UTCEPSS rescore
- 2026-09-15 03:10 UTCEPSS rescore
- 2026-09-13 16:46 UTCEPSS rescore
- 2026-09-12 20:06 UTCOSV refresh
- 2026-09-12 15:00 UTCEPSS rescore
- 2026-09-11 09:36 UTCEPSS rescore
- 2026-09-10 09:34 UTCEPSS rescore
- 2026-09-08 22:00 UTCEPSS rescore
- 2026-09-06 13:47 UTCEPSS rescore
- 2026-09-04 05:06 UTCEPSS rescore
- 2026-09-02 14:11 UTCEPSS rescore
- 2026-09-01 13:53 UTCEPSS rescore
- 2026-08-30 19:16 UTCEPSS rescore
- 2026-08-30 01:21 UTCEPSS rescore
- 2026-08-28 21:40 UTCEPSS rescore
- 2026-08-27 14:24 UTCEPSS rescore
- 2026-08-26 14:45 UTCEPSS rescore
- 2026-08-25 13:48 UTCEPSS rescore
- 2026-08-25 01:26 UTCOSV refresh
- 2026-08-24 14:16 UTCEPSS rescore
- 2026-08-21 23:48 UTCEPSS rescore
- 2026-08-20 22:55 UTCEPSS rescore
- 2026-08-19 17:03 UTCEPSS rescore
Show 75 moreShow fewer
- 2026-08-18 13:47 UTCEPSS rescore
- 2026-08-17 13:46 UTCEPSS rescore
- 2026-08-16 02:13 UTCEPSS rescore
- 2026-08-15 01:30 UTCEPSS rescore
- 2026-08-15 01:29 UTCEPSS rescore
- 2026-08-13 21:59 UTCEPSS rescore
- 2026-08-12 13:50 UTCEPSS rescore
- 2026-08-11 13:42 UTCEPSS rescore
- 2026-08-09 13:46 UTCEPSS rescore
- 2026-08-09 13:46 UTCEPSS rescore
- 2026-08-08 18:25 UTCOSV refresh
- 2026-08-06 13:46 UTCEPSS rescore
- 2026-08-05 19:17 UTCEPSS rescore
- 2026-08-05 19:17 UTCEPSS rescore
- 2026-08-04 10:37 UTCEPSS rescore
- 2026-08-03 10:35 UTCEPSS rescore
- 2026-08-01 04:15 UTCEPSS rescore
- 2026-07-30 16:27 UTCEPSS rescore
- 2026-07-30 01:30 UTCEPSS rescore
- 2026-07-28 15:35 UTCEPSS rescore
- 2026-07-26 14:54 UTCEPSS rescore
- 2026-07-26 14:54 UTCEPSS rescore
- 2026-07-25 14:17 UTCEPSS rescore
- 2026-07-24 14:17 UTCEPSS rescore
- 2026-07-24 14:17 UTCEPSS rescore
- 2026-07-23 17:11 UTCOSV refresh
- 2026-07-23 14:18 UTCEPSS rescore
- 2026-07-23 14:18 UTCEPSS rescore
- 2026-07-23 03:00 UTCEG score recompute▼ 1.60
- 2026-07-22 14:08 UTCEPSS rescore
- 2026-07-21 15:24 UTCEPSS rescore
- 2026-07-20 17:08 UTCEPSS rescore
- 2026-07-19 02:28 UTCEPSS rescore
- 2026-07-16 17:02 UTCEPSS rescore
- 2026-07-15 16:57 UTCEPSS rescore
- 2026-07-15 16:57 UTCEPSS rescore
- 2026-07-13 22:29 UTCEPSS rescore
- 2026-07-13 06:12 UTCEPSS rescore
- 2026-07-12 05:46 UTCEPSS rescore
- 2026-07-11 08:27 UTCEPSS rescore
- 2026-07-09 19:09 UTCEPSS rescore
- 2026-07-06 11:41 UTCOSV refresh
- 2026-07-05 02:30 UTCEPSS rescore
- 2026-07-05 02:30 UTCEPSS rescore
- 2026-07-01 15:06 UTCEPSS rescore
- 2026-07-01 15:06 UTCEPSS rescore
- 2026-06-28 04:56 UTCEPSS rescore
- 2026-06-28 04:55 UTCEPSS rescore
- 2026-06-27 03:08 UTCEPSS rescore
- 2026-06-25 13:49 UTCEPSS rescore
- 2026-06-24 09:56 UTCNVD updateCVSS v3 → 7.5 · severity → HIGH
- 2026-06-23 21:32 UTCEPSS rescore
- 2026-06-23 21:32 UTCEPSS rescore
- 2026-06-21 01:59 UTCEPSS rescore
- 2026-06-21 01:59 UTCEPSS rescore
- 2026-06-18 17:52 UTCEPSS rescore
- 2026-06-18 17:52 UTCEPSS rescore
- 2026-06-17 23:43 UTCOSV refresh
- 2026-06-17 17:52 UTCEPSS rescore
- 2026-06-16 17:52 UTCEPSS rescore
- 2026-06-15 17:48 UTCEPSS rescore
- 2026-06-15 17:48 UTCEPSS rescore
- 2026-06-14 23:18 UTCEPSS rescore
- 2026-06-13 23:00 UTCEPSS rescore
- 2026-06-13 23:00 UTCEPSS rescore
- 2026-06-12 23:11 UTCEPSS rescore
- 2026-06-11 14:00 UTCEPSS rescore
- 2026-06-10 22:18 UTCEPSS rescore
- 2026-06-10 22:18 UTCEPSS rescore
- 2026-06-10 13:22 UTCEPSS rescore
- 2026-06-07 15:24 UTCEPSS rescore
- 2026-06-07 15:24 UTCEPSS rescore
- 2026-06-06 13:47 UTCEPSS rescore
- 2026-06-06 13:47 UTCEPSS rescore
- 2026-06-05 22:46 UTCEPSS rescore
Publicly available exploits
(2 references)Working exploit code is in the public domain (1 GitHub PoC). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.
- GitHub PoCmonzaviman/CVE-2025-62168First seen Oct 22, 2025
PoC of CVE-2025-62168
Open source ↗ - Nucleihttp/cves/2025/CVE-2025-62168.yamlFirst seen Jan 1, 2025
Squid Proxy - HTTP Authentication Credentials Disclosure
Open source ↗
Frequently asked(5)
What is CVE-2025-62168?
When was CVE-2025-62168 disclosed?
Is CVE-2025-62168 actively exploited?
What is the CVSS score of CVE-2025-62168?
How do I remediate CVE-2025-62168?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2025-62168
Is Your Infrastructure Affected by CVE-2025-62168?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.