libcurl did not check the server certificate of TLS connections done to a host specified as an IP address, when built to use mbedTLS. libcurl would wrongly avoid using the set hostname function when the specified hostname was given as an IP address, therefore completely skipping the certificate check. This affects all uses of TLS protocols (HTTPS, FTPS, IMAPS, POPS3, SMTPS, etc).
CVE-2024-2466
Score 6.5 from GitHub Security Advisory published 2024-03-27. NVD baseline CVSS 6.5; sources differ by 0.0.
- Lower severity and no public exploit yet
A fix is available — apply it.
- CVSS v3
- 6.5
- EG Score
- 6.5(medium)
- EPSS
- 67.0%
- KEV
- Not listed
Published
March 27, 2024
Last Modified
July 30, 2025
References (23)
- 2499f714-1537-4658-8207-48ae4bb9eae9http://seclists.org/fulldisclosure/2024/Jul/18
- 2499f714-1537-4658-8207-48ae4bb9eae9http://seclists.org/fulldisclosure/2024/Jul/19
- 2499f714-1537-4658-8207-48ae4bb9eae9http://seclists.org/fulldisclosure/2024/Jul/20
- 2499f714-1537-4658-8207-48ae4bb9eae9http://www.openwall.com/lists/oss-security/2024/03/27/4
- 2499f714-1537-4658-8207-48ae4bb9eae9https://curl.se/docs/CVE-2024-2466.html
- 2499f714-1537-4658-8207-48ae4bb9eae9https://curl.se/docs/CVE-2024-2466.json
- 2499f714-1537-4658-8207-48ae4bb9eae9https://hackerone.com/reports/2416725
- 2499f714-1537-4658-8207-48ae4bb9eae9https://security.netapp.com/advisory/ntap-20240503-0010/
- 2499f714-1537-4658-8207-48ae4bb9eae9https://support.apple.com/kb/HT214118
- 2499f714-1537-4658-8207-48ae4bb9eae9https://support.apple.com/kb/HT214119
- 2499f714-1537-4658-8207-48ae4bb9eae9https://support.apple.com/kb/HT214120
- af854a3a-2127-422b-91ae-364da2661108http://seclists.org/fulldisclosure/2024/Jul/18
- af854a3a-2127-422b-91ae-364da2661108http://seclists.org/fulldisclosure/2024/Jul/19
- af854a3a-2127-422b-91ae-364da2661108http://seclists.org/fulldisclosure/2024/Jul/20
- af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2024/03/27/4
Vendor Advisories for CVE-2024-2466(2)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Patch Availability(2)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| redhat | jbcs-httpd24-nghttp2-0:1.43.0-13.el7jbcs | 2024-05-07 | redhat |
| redhat | jbcs-httpd24-curl | 2024-05-07 | 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
(1)
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 11× in last 7d / 50× 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.
- 2026-07-11 08:26 UTCEPSS rescore
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- 2026-06-26 16:39 UTCOSV refresh
- 2026-06-25 13:49 UTCEPSS rescore
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- 2026-06-25 13:48 UTCEPSS rescore
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- 2026-06-10 13:21 UTCEPSS rescore
- 2026-06-10 13:21 UTCEPSS rescore
- 2026-06-08 23:45 UTCOSV refresh
- 2026-06-08 14:16 UTCEPSS rescore
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- 2026-06-06 13:46 UTCEPSS rescore
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- 2026-05-29 13:43 UTCEPSS rescore
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- 2026-05-26 07:18 UTCEPSS rescore
- 2026-05-26 07:18 UTCEPSS rescore
- 2026-05-24 05:47 UTCEG score recompute
- 2026-05-24 05:47 UTCVendor advisory
- 2026-05-24 05:47 UTCGHSA enrichment
Frequently asked(5)
What is CVE-2024-2466?
When was CVE-2024-2466 disclosed?
Is CVE-2024-2466 actively exploited?
What is the CVSS score of CVE-2024-2466?
How do I remediate CVE-2024-2466?
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2024-2466
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