Is CVE-2023-52892 actively exploited?

CVE-2023-52892 has no public evidence of in-the-wild exploitation as of 2025-10-22.

What is the CVSS score for CVE-2023-52892?

CVE-2023-52892 has a CVSS score of 7.5 (HIGH severity). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

How do I patch CVE-2023-52892?

Patch guidance is available from phpseclib security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2023-52892.

Fix CVE-2023-52892 - HIGH phpseclib phpseclib

Q: Which products are affected by CVE-2023-52892?

3 products: phpseclib phpseclib, phpseclib phpseclib, phpseclib phpseclib.

Description

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.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack Vector: network
Complexity: low
Privileges: none
User Action: none
Scope: unchanged
Confidentiality: high
Integrity: none
Availability: none
Weaknesses: CWE-436

Metadata

Primary Vendor: PHPSECLIB
Published: 6/27/2024
Last Modified: 10/22/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

phpseclib : phpseclibphpseclib : phpseclibphpseclib : phpseclib

Remediation Guidance

Executive Summary

Cite this page

CVE-2023-52892. CVEDatabase.com. Retrieved 1 May 2026. https://cvedatabase.com/cve/CVE-2023-52892

View on NIST NVD

CVE-2023-52892 vulnerability