CVE-2024-2466

Name: CVE-2024-2466
Creator: NVD / NIST
Published: 2024-03-27T08:15:41.343+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 1.30%

Last modified Jun 17, 2026

CVE-2024-2466 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. 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. EPSS estimates a 1.30% chance of exploitation in the next 30 days.

Description

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).

Metrics

CVSS 3.1

6.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

EPSS Probability

1.30%

66.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-297

Affected Software

Vendor	Product	Versions
Haxx	Curl	>= 8.5.0, < 8.7.0
Apple	Macos	< 12.7.6
Apple	Macos	>= 13.0, < 13.6.8
Apple	Macos	>= 14.0, < 14.6
Netapp	H700s Firmware	All versions
Netapp	Bootstrap Os	All versions
Netapp	H300s Firmware	All versions
Netapp	H410s Firmware	All versions
Netapp	H500s Firmware	All versions

References

http://seclists.org/fulldisclosure/2024/Jul/18Mailing List, Third Party Advisory
http://seclists.org/fulldisclosure/2024/Jul/19Mailing List, Third Party Advisory
http://seclists.org/fulldisclosure/2024/Jul/20Mailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2024/03/27/4Mailing List, Third Party Advisory
https://curl.se/docs/CVE-2024-2466.htmlVendor Advisory
https://curl.se/docs/CVE-2024-2466.jsonVendor Advisory
https://hackerone.com/reports/2416725Exploit, Issue Tracking, Third Party Advisory
https://security.netapp.com/advisory/ntap-20240503-0010/Third Party Advisory
https://support.apple.com/kb/HT214118Release Notes, Vendor Advisory
https://support.apple.com/kb/HT214119Release Notes, Vendor Advisory
https://support.apple.com/kb/HT214120Release Notes, Vendor Advisory
http://seclists.org/fulldisclosure/2024/Jul/18Mailing List, Third Party Advisory
http://seclists.org/fulldisclosure/2024/Jul/19Mailing List, Third Party Advisory
http://seclists.org/fulldisclosure/2024/Jul/20Mailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2024/03/27/4Mailing List, Third Party Advisory
https://curl.se/docs/CVE-2024-2466.htmlVendor Advisory
https://curl.se/docs/CVE-2024-2466.jsonVendor Advisory
https://hackerone.com/reports/2416725Exploit, Issue Tracking, Third Party Advisory
https://security.netapp.com/advisory/ntap-20240503-0010/Third Party Advisory
https://support.apple.com/kb/HT214118Release Notes, Vendor Advisory
https://support.apple.com/kb/HT214119Release Notes, Vendor Advisory
https://support.apple.com/kb/HT214120Release Notes, Vendor Advisory
https://www.vicarius.io/vsociety/posts/tls-certificate-check-bypass-curl-with-mbedtls-cve-2024-2466-2468Exploit, Mitigation, Third Party Advisory

Timeline

Published: Mar 27, 2024
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2024-2466?

How severe is CVE-2024-2466?

CVE-2024-2466 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 1.30% probability of exploitation in the next 30 days.

How do I fix CVE-2024-2466?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2024-2466?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST