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CVE-2024-2466

UNKNOWN
Published 2024-03-27T07:58:24.520Z
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Expert Analysis

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CVSS Score

V3.1
6.5
/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Base Score Metrics
Exploitability: N/A Impact: N/A

EPSS Score

v2025.03.14
0.002
probability
of exploitation in the wild

There is a 0.2% chance that this vulnerability will be exploited in the wild within the next 30 days.

Updated: 2025-06-25
Exploit Probability
Percentile: 0.372
Higher than 37.2% of all CVEs

Attack Vector Metrics

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED

Impact Metrics

Confidentiality
LOW
Integrity
LOW
Availability
NONE

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).

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

Affected Products

curl

curl

Affected Versions:

8.6.0 8.5.0
curl

libcurl

Affected Versions:

8.5.0

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

⚠ Unreviewed MODERATE

GHSA-9xr6-qf7m-2jv5

Advisory Details

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).

CVSS Scoring

CVSS Score

5.0

CVSS Vector

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

References

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2024-2466
WEB https://hackerone.com/reports/2416725
WEB https://curl.se/docs/CVE-2024-2466.html
WEB https://curl.se/docs/CVE-2024-2466.json
WEB https://security.netapp.com/advisory/ntap-20240503-0010
WEB https://support.apple.com/kb/HT214118
WEB https://support.apple.com/kb/HT214119
WEB https://support.apple.com/kb/HT214120
WEB https://www.vicarius.io/vsociety/posts/tls-certificate-check-bypass-curl-with-mbedtls-cve-2024-2466-2468
WEB http://seclists.org/fulldisclosure/2024/Jul/18
WEB http://seclists.org/fulldisclosure/2024/Jul/19
WEB http://seclists.org/fulldisclosure/2024/Jul/20
WEB http://www.openwall.com/lists/oss-security/2024/03/27/4

Advisory provided by GitHub Security Advisory Database. Published: March 27, 2024, Modified: July 30, 2025

References

https://curl.se/docs/CVE-2024-2466.json
https://curl.se/docs/CVE-2024-2466.html
https://hackerone.com/reports/2416725
http://www.openwall.com/lists/oss-security/2024/03/27/4
https://security.netapp.com/advisory/ntap-20240503-0010/
https://support.apple.com/kb/HT214119
https://support.apple.com/kb/HT214118
https://support.apple.com/kb/HT214120
http://seclists.org/fulldisclosure/2024/Jul/20
http://seclists.org/fulldisclosure/2024/Jul/18
http://seclists.org/fulldisclosure/2024/Jul/19

HackerOne Reports

CVE-2024-2466: TLS certificate check bypass with mbedTLS (reward request) Medium
frankyueh
Internet Bug Bounty
$2580.00
Improper Certificate Validation
View Report
Published: 2024-03-27T07:58:24.520Z
Last Modified: 2025-02-13T17:40:16.744Z
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