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    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.

    Published:Jun 27, 2024
    Last Modified:Oct 22, 2025
    EPS:Jun 27, 2024
    EPSS Score:0.00135
    CVSS Score:7.5

    Affected Products

    Vendor
    Phpseclib
    Product
    Phpseclib

    Exploits

    https://github.com/phpseclib/phpseclib/issues/1943https://github.com/phpseclib/phpseclib/issues/1943

    Common Weakness Enumeration

    CWE-436 Interpretation Conflict

    Related CVEs

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    CVE-2026-55599 (CVSS 5.8) — phpseclib is a PHP secure communications library. From 0.1.1 until 1.0.30, 2.0.55, and 3.0.54, when an applica…
    CVE-2026-44167 (CVSS 7.5) — phpseclib is a PHP secure communications library. Prior to 1.0.29, 2.0.54, and 3.0.52, anyone loading untruste…
    CVE-2026-40194 (CVSS 3.7) — phpseclib is a PHP secure communications library. Starting in 0.1.1 and prior to 3.0.51, 2.0.53, and 1.0.28, p…
    CVE-2026-32935 (CVSS 8.2) — phpseclib is a PHP secure communications library. Projects using versions 0.1.1 through 1.0.26, 2.0.0 through …
    CVE-2024-27355 (CVSS 7.5) — An issue was discovered in phpseclib 1.x before 1.0.23, 2.x before 2.0.47, and 3.x before 3.0.36. When process…
    CVE-2024-27354 (CVSS 7.5) — An issue was discovered in phpseclib 1.x before 1.0.23, 2.x before 2.0.47, and 3.x before 3.0.36. An attacker …
    CVE-2023-49316 (CVSS 7.5) — In Math/BinaryField.php in phpseclib 3 before 3.0.34, excessively large degrees can lead to a denial of servic…
    CVE-2023-27560 (CVSS 7.5) — Math/PrimeField.php in phpseclib 3.x before 3.0.19 has an infinite loop with composite primefields.…
    CVE-2021-30130 (CVSS 7.5) — phpseclib before 2.0.31 and 3.x before 3.0.7 mishandles RSA PKCS#1 v1.5 signature verification.…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High