Vulnerability in Curl
CVE-2024-0853
curl inadvertently kept the SSL session ID for connections in its cache even when the verify status (*OCSP stapling*) test failed. A subsequent transfer to the same hostname could then succeed if the session ID cache was still fresh, which then skipped the verify status check.
Vulnerability class: Improper Certificate Validation
EPSS: 0.011 (62.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- 2499f714-1537-4658-8207-48ae4bb9eae9 (Vendor Advisory)
- 2499f714-1537-4658-8207-48ae4bb9eae9 (Vendor Advisory)
- 2499f714-1537-4658-8207-48ae4bb9eae9 (Exploit, Issue Tracking)
- 2499f714-1537-4658-8207-48ae4bb9eae9
- 2499f714-1537-4658-8207-48ae4bb9eae9
- 2499f714-1537-4658-8207-48ae4bb9eae9
Frequently asked questions
- What is CVE-2024-0853?
- CVE-2024-0853 is a medium-severity vulnerability in Curl, classified under Improper Certificate Validation. CVSS score: 5.3/10. Published 2024-02-03.
- How severe is CVE-2024-0853?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2024-0853 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.