CVE-2025-11955 Vulnerability Analysis & Exploit Details

CVE-2025-11955
Vulnerability Scoring

Analysis In Progress
Analysis In Progress

Attack Complexity Details

  • Attack Complexity:
    Attack Complexity Analysis In Progress
  • Attack Vector:
    Attack Vector Under Analysis
  • Privileges Required: None
    No authentication is required for exploitation.
  • Scope:
    Impact is confined to the initially vulnerable component.
  • User Interaction: None
    No user interaction is necessary for exploitation.

CVE-2025-11955 Details

Status: Deferred

Last updated: 🕚 08 Oct 2026, 11:10 UTC
Originally published on: 🕛 27 Oct 2025, 12:15 UTC

Time between publication and last update: 345 days

CVSS Release:

CVE-2025-11955 Vulnerability Summary

CVE-2025-11955: Incorrect validation of OCSP certificates vulnerability in TheGreenBow VPN, versions 7.5 and 7.6. During the IKEv2 authentication step, the OCSP-enabled VPN client establishes the tunnel even if it does not receive an OCSP response or if the OCSP response signature is invalid.

Assessing the Risk of CVE-2025-11955

Access Complexity Graph

The exploitability of CVE-2025-11955 depends on two key factors: attack complexity (the level of effort required to execute an exploit) and privileges required (the access level an attacker needs).

Exploitability Analysis for CVE-2025-11955

No exploitability data is available for CVE-2025-11955.

Understanding AC and PR

A lower complexity and fewer privilege requirements make exploitation easier. Security teams should evaluate these aspects to determine the urgency of mitigation strategies, such as patch management and access control policies.

Attack Complexity (AC) measures the difficulty in executing an exploit. A high AC means that specific conditions must be met, making an attack more challenging, while a low AC means the vulnerability can be exploited with minimal effort.

Privileges Required (PR) determine the level of system access necessary for an attack. Vulnerabilities requiring no privileges are more accessible to attackers, whereas high privilege requirements limit exploitation to authorized users with elevated access.

CVSS Score Breakdown Chart

Above is the CVSS Sub-score Breakdown for CVE-2025-11955, illustrating how Base, Impact, and Exploitability factors combine to form the overall severity rating. A higher sub-score typically indicates a more severe or easier-to-exploit vulnerability.

CIA Impact Analysis

Below is the Impact Analysis for CVE-2025-11955, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

  • Confidentiality: None
    CVE-2025-11955 does not compromise confidentiality.
  • Integrity: None
    CVE-2025-11955 does not impact data integrity.
  • Availability: None
    CVE-2025-11955 does not affect system availability.

CVE-2025-11955 References

External References

CWE Common Weakness Enumeration

CWE-299

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