CVE-2025-2516 Use of a weak cryptographic key in the signature verification process in WPS Office
Weak cryptographic keys in WPS Office allow attackers to sign malicious components and hijack updates via man-in-the-middle attacks.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-2516?
CVE-2025-2516 is a critical vulnerability in Kingsoft WPS Office, published on 27 Mar 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-326
Which versions are affected by CVE-2025-2516?
How do I fix CVE-2025-2516?
No fix has been published for CVE-2025-2516 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-2516 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-2516 exists.
Sources
Also known as GHSA-cvv7-5999-m892.