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Status published
High
CVE-2025-11955
Incorrect validation of OCSP certificates in TheGreenBow VPN Client Windows Enterprise
Vulnerability Description
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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
Affected Vendor
TheGreenBow
View all reports →Affected Software
TheGreenBow VPN Client Windows Enterprise
Vulnerable Versions:
7.5, 7.6
Timeline
Official Publish:
October 27th, 2025
Last Modified:
October 27th, 2025
Added to House:
July 22nd, 2026
CVSS Vectors
Weaknesses (CWE)
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.