Vulnerability details
CVE-2025-2516
Kingsoft WPS Office
Use of a weak cryptographic key in the signature verification process in WPS Office
CVSS 4.0
9.5Critical
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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 9.5Critical | 4.0 | CVEProject cvelistV5 (CNA) (ESET) | 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 |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Kingsoft | WPS Office | 12.1.0.18276 | CVEProject cvelistV5 (CNA) |
References and advisories
1
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Details
- Published
- 2025-03-27
- Last updated
- 2025-03-27
- State
- Published
- Assigner (CNA)
- ESET
Exploit prediction (EPSS)
0.14%
Probability of exploitation in 30 days
3.4%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- Proof of concept
- Technical impact
- Total
Weaknesses (CWE)
- CWE-326Inadequate Encryption Strength