What’s Vulnerable › Vulnerabilities
CVE-2025-2516: Use of a weak cryptographic key in the signature verification process in WPS Office
- Severity: critical (CVSS 9.5 v4.0)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.1% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2025-03-27 · updated 2026-06-17
- Weakness: CWE-326
Description
The use of a weak cryptographic key pair in the signature verification process in WPS Office (Kingsoft) on Windows allows an attacker who successfully recovered the private key to sign components. As older versions of WPS Office did not validate the update server's certificate, an Adversary-In-The-Middle attack was possible allowing updates to be hijacked.
References
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