Improper Verification of Cryptographic Signature in Ghidra - #VU131574
Published: May 15, 2026
Vulnerability identifier: #VU131574
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: N/A
CWE-ID: CWE-347
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: National Security Agency
Affected software:
Ghidra
Ghidra
Detailed vulnerability description
The vulnerability allows a remote user to impersonate another user and escalate privileges.
The vulnerability exists due to improper verification of cryptographic signature in PKIAuthenticationModule.authenticate() when processing PKI authentication requests. A remote user can present a target user's public certificate with a null signature to impersonate another user and escalate privileges.
Exploitation requires PKI authentication mode to be enabled, and the attacker must possess a valid CA-signed certificate while obtaining the target's public certificate.
Remediation
Install security update from vendor's website.