Squid is a web proxy cache. Starting in version 3.5.27 and prior to version 6.8, Squid may be vulnerable to a Denial of Service attack against HTTP Chunked decoder due to an uncontrolled recursion bug. This problem allows a remote attacker to cause Denial of Service when sending a crafted, chunked, encoded HTTP Message. This bug is fixed in Squid version 6.8. In addition, patches addressing this problem for the stable releases can be found in Squid's patch archives. There is no workaround for this issue.
CVE-2024-25111
Score elevated to 8.9 because EPSS predicts 65% probability of exploitation within the next 30 days (top 0.8% of all CVEs). NVD baseline CVSS 8.6 retained for reference. Confidence: see factors.
- High exploitation likelihood — EPSS 65%
A fix is available — apply it.
- CVSS v3
- 8.6
- EG Score
- 8.9(high)
- EG Risk
- 81(Attend)EG Risk 81/100SSVC: Attend
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 computedSeverity89% × 45%Exploitation65% × 40%Automatability100% × 15%Action: Remediate soon — notable exploitation risk. - EPSS
- 99.2%
- KEV
- Not listed
Published
March 6, 2024
Last Modified
November 3, 2025
References (11)
- security-advisories@githubhttp://www.squid-cache.org/Versions/v6/SQUID-2024_1.patch
- security-advisories@githubhttps://github.com/squid-cache/squid/security/advisories/GHSA-72c2-c3wm-8qxc
- security-advisories@githubhttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7R4KPSO3MQT3KAOZV7LC2GG3CYMCGK7H/
- security-advisories@githubhttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XWQHRDRHDM5PQTU6BHH4C5KGL37X6TVI/
- security-advisories@githubhttps://security.netapp.com/advisory/ntap-20240605-0001/
- af854a3a-2127-422b-91ae-364da2661108http://www.squid-cache.org/Versions/v6/SQUID-2024_1.patch
- af854a3a-2127-422b-91ae-364da2661108https://github.com/squid-cache/squid/security/advisories/GHSA-72c2-c3wm-8qxc
- af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2025/03/msg00009.html
- af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7R4KPSO3MQT3KAOZV7LC2GG3CYMCGK7H/
- af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XWQHRDRHDM5PQTU6BHH4C5KGL37X6TVI/
- af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20240605-0001/
Vendor Advisories for CVE-2024-25111(5)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
- RHSA-2024:2777Red Hat Product SecurityHigh
Red Hat Security Advisory: squid:4 security update
- RHSA-2024:1833Red Hat Product SecurityHigh
Red Hat Security Advisory: squid security update
- RHSA-2024:1832Red Hat Product SecurityHigh
Red Hat Security Advisory: squid:4 security update
- RHSA-2024:1375Red Hat Product SecurityHigh
Red Hat Security Advisory: squid:4 security update
- RHSA-2024:1376Red Hat Product SecurityHigh
Red Hat Security Advisory: squid security update
Patch Availability(9)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | squidclient (6.1-2ubuntu1.3) @ mantic | 2026-05-24 | ubuntu |
| redhat | squid:4-8080020240311185140.63b34585 | 2024-05-13 | redhat |
| redhat | squid:4-8020020240313150557.4cda2c84 | 2024-05-09 | redhat |
| redhat | squid-7:5.2-1.el9_0.6 | 2024-04-16 | redhat |
| redhat | squid:4-8040020240312224211.522a0ee4 | 2024-04-16 | redhat |
| redhat | squid-7:5.5-5.el9_2.6 | 2024-03-26 | redhat |
| redhat | squid:4-8060020240312145037.ad008a3a | 2024-03-25 | redhat |
| redhat | squid:4-8090020240314114525.a75119d5 | 2024-03-19 | redhat |
| redhat | squid-7:5.5-6.el9_3.8 | 2024-03-19 | 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.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Additional Vendor Advisories
(4)
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 8× in last 7d / 33× 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.
- 2026-07-23 02:34 UTCEG score recompute▲ 0.30
- 2026-07-22 23:21 UTCEG score recompute
- 2026-07-22 14:07 UTCEPSS rescore
- 2026-07-21 15:23 UTCEPSS rescore
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- 2026-07-14 17:40 UTCOSV refresh
- 2026-07-13 22:28 UTCEPSS rescore
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- 2026-06-27 03:07 UTCEPSS rescore
- 2026-06-26 18:37 UTCOSV refresh
- 2026-06-25 13:48 UTCEPSS rescore
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- 2026-06-24 14:04 UTCEPSS rescore
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- 2026-06-10 22:17 UTCEPSS rescore
- 2026-06-10 13:21 UTCEPSS rescore
- 2026-06-10 13:21 UTCEPSS rescore
- 2026-06-09 02:30 UTCOSV refresh
- 2026-06-08 14:16 UTCEPSS rescore
- 2026-06-08 14:16 UTCEPSS rescore
- 2026-06-07 15:24 UTCEPSS rescore
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- 2026-05-29 13:43 UTCEPSS rescore
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- 2026-05-27 13:40 UTCEPSS rescore
- 2026-05-26 13:43 UTCEPSS rescore
- 2026-05-26 13:43 UTCEPSS rescore
- 2026-05-26 07:18 UTCEPSS rescore
- 2026-05-26 07:18 UTCEPSS rescore
- 2026-05-24 07:07 UTCEG score recompute
- 2026-05-24 07:07 UTCVendor advisory
Frequently asked(5)
What is CVE-2024-25111?
When was CVE-2024-25111 disclosed?
Is CVE-2024-25111 actively exploited?
What is the CVSS score of CVE-2024-25111?
How do I remediate CVE-2024-25111?
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2024-25111
Is Your Infrastructure Affected by CVE-2024-25111?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.