CVE-2023-52892

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

27/06/2024

Last modified:

22/10/2025

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.

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS v3.1 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): None
Availability (A): None

Base Score 3.x

7.50

Severity 3.x

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:phpseclib:phpseclib::::::::	1.0.0 (including)	1.0.22 (excluding)
cpe:2.3:a:phpseclib:phpseclib::::::::	2.0.0 (including)	2.0.46 (excluding)
cpe:2.3:a:phpseclib:phpseclib::::::::	3.0.0 (including)	3.0.33 (excluding)

To consult the complete list of CPE names with products and versions, see this page

CVE-2023-52892

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools