VDB
CVE-2025-11934
CVE-2025-11934
PUBLISHED
CVSS 2.0999999046325684 LOW
Improper input validation in the TLS 1.3 CertificateVerify signature algorithm negotiation in wolfSSL 5.8.2 and earlier on multiple platforms allows for downgrading the signature algorithm used. For example when a client sends ECDSA P521 as the supported signature algorithm the server previously could respond as ECDSA P256 being the accepted signature algorithm and the connection would continue with using ECDSA P256, if the client supports ECDSA P256.
EPSS 0.02% · 5.1th percentile
Risk Scores
CVSS v4.0
2.0999999046325684
CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N
EPSS Score
0.02%
5.1th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| wolfSSL | wolfSSL | 3.12.0 |
| wolfssl | wolfssl | 5.8.2 |
Timeline
- Jan 21, 1970 Fix PR Merged
- Oct 17, 2025 CVE ID Reserved
- Nov 21, 2025 CVE Published
- Nov 21, 2025 PoC Published
- Nov 22, 2025 EPSS Score
- Nov 22, 2025 Coalition ESS Score
- Nov 27, 2025 EPSS Score
- Dec 2, 2025 EPSS Score
- Dec 4, 2025 Coalition ESS Score
- Dec 5, 2025 Coalition ESS Score
- Dec 6, 2025 EPSS Score
- Dec 8, 2025 CVE Updated