CVE-2025-2516 — Use of a weak cryptographic key in the signature verification process in WPS Office

CVE-2025-2516

Use of a weak cryptographic key in the signature verification process in WPS Office PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
Kingsoft / WPS Office	unknown 12.1.0.18276

CWE

CWE-326

References

https://www.welivesecurity.com/en/eset-research/nspx30-sophisticated-aitm-enabled-implant-evolving-since-2005/

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.