CVE-2025-2516
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.
Scoring
- Severity
- CRITICAL
- CVSS base score
- 9.5
- CVSS vector
- CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/U:Amber
- EPSS probability
- 0.14%
- CWE
- CWE-326
- Published
- 2025-03-27
- Last modified
- 2026-03-12
Affected products
- Kingsoft WPS Office
Weakness type
Related vulnerabilities
- CVE-2026-86670 — aircheng-org iWebShop-5 Authentication Storage admin.php weak password hash
- CVE-2023-54356 — Kyverno before 1.9.5 Sweet32 Medium Strength Cipher Suites
- CVE-2026-81718 — openssl_encrypt before 1.4.9 Weak Cryptographic Parameters
- CVE-2026-79084 — Inadequate encryption strength in Notifications in Google Chrome on on Windows prior to...
- CVE-2026-74889 — openssl_encrypt before 1.4.0 Weak Key Derivation via HKDF
- CVE-2026-65777 — Active Directory Security Feature Bypass Vulnerability
- CVE-2026-9201 — Langflow OSS is affected by arbitrary code execution in component generation, validation, and custom component handling
- CVE-2026-59651 — BKS keystore accepts legacy version with 16-bit integrity MAC key