Vulnerability in Phpseclib
CVE-2023-52892
In phpseclib before 1.0.22, 2.x before 2.0.46, and 3.x before 3.0.33, some characters in Subject Alternative Name fields in TLS certificates are incorrectly allowed to have a special meaning in regular expressions (such as a + wildcard), leading to name confusion in X.509 certificate host verification.
EPSS: 0.004 (30.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
Affected products
- Phpseclib
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Exploit, Issue Tracking)
- cve@mitre.org (Release Notes)
- cve@mitre.org (Patch)
- cve@mitre.org (Not Applicable)
Frequently asked questions
- What is CVE-2023-52892?
- CVE-2023-52892 is a high-severity vulnerability in Phpseclib, classified under CWE-436. CVSS score: 7.5/10. Published 2024-06-27.
- How severe is CVE-2023-52892?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2023-52892 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.