Which versions of PHP are affected by CVE-2025-34223?

CVE-2025-34223 presents critical security risk, a missing authentication vulnerability rated CVSS 10.0.

Is there a public PoC exploit available for CVE-2025-34223?

Yes, a public proof-of-concept exploit is available for CVE-2025-34223. Prioritise patching immediately. EPSS: 1.9%.

How to fix or mitigate CVE-2025-34223?

Within 24 hours: Identify all affected systems and apply vendor patches immediately. Audit authentication configurations and rotate any potentially compromised credentials.

PHP CVE-2025-34223

Q: What is the CVSS score of CVE-2025-34223?

CVE-2025-34223 has a CVSS 4.0 base score of 10.0 (Critical). CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X. EPSS exploitation probability: 1.9%.

CRITICAL

Missing Authentication for Critical Function (CWE-306)

2025-09-29 disclosure@vulncheck.com

PHP Authentication Bypass Virtual Appliance Application Virtual Appliance Host Vasion

10.0

CVSS 4.0 · NVD

Severity by source

NVD PRIMARY

10.0 CRITICAL

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 19:14 vuln.today

PoC Detected

Oct 09, 2025 - 18:13 vuln.today

Public exploit code

CVE Published

Sep 29, 2025 - 21:15 nvd

CRITICAL 10.0

DescriptionCVE.org

Vasion Print (formerly PrinterLogic) Virtual Appliance Host prior to version 22.0.1049 and Application prior to version 20.0.2786 (VA/SaaS deployments) contain a default admin account and an installation‑time endpoint at /admin/query/update_database.php that can be accessed without authentication. An attacker who can reach the installation web interface can POST arbitrary root_user and root_password values, causing the script to replace the default admin credentials with attacker‑controlled ones. The script also contains hard‑coded SHA‑512 and SHA‑1 hashes of the default password, allowing the attacker to bypass password‑policy validation. As a result, an unauthenticated remote attacker can obtain full administrative control of the system during the initial setup. This vulnerability has been identified by the vendor as: V-2024-022 - Insecure Installation Credentials.

AnalysisAI

Vasion Print (formerly PrinterLogic) Virtual Appliance Host prior to version 22.0.1049 and Application prior to version 20.0.2786 (VA/SaaS deployments) contain a default admin account and an. Rated critical severity (CVSS 10.0), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Missing Authentication for Critical Function (CWE-306), which allows attackers to access critical functionality without authentication. Vasion Print (formerly PrinterLogic) Virtual Appliance Host prior to version 22.0.1049 and Application prior to version 20.0.2786 (VA/SaaS deployments) contain a default admin account and an installation‑time endpoint at /admin/query/update_database.php that can be accessed without authentication. An attacker who can reach the installation web interface can POST arbitrary root_user and root_password values, causing the script to replace the default admin credentials with attacker‑controlled ones. The script also contains hard‑coded SHA‑512 and SHA‑1 hashes of the default password, allowing the attacker to bypass password‑policy validation. As a result, an unauthenticated remote attacker can obtain full administrative control of the system during the initial setup. This vulnerability has been identified by the vendor as: V-2024-022 - Insecure Installation Credentials. Affected products include: Vasion Virtual Appliance Application, Vasion Virtual Appliance Host. Version information: version 22.0.1049.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Require authentication for all sensitive operations, implement defense in depth.