VDB
CVE-2025-11936
CVE-2025-11936
PUBLISHED
CVSS 6.300000190734863 MEDIUM
Improper input validation in the TLS 1.3 KeyShareEntry parsing in wolfSSL v5.8.2 on multiple platforms allows a remote unauthenticated attacker to cause a denial-of-service by sending a crafted ClientHello message containing duplicate KeyShareEntry values for the same supported group, leading to excessive CPU and memory consumption during ClientHello processing.
EPSS 0.05% · 15.9th percentile
Risk Scores
CVSS v4.0
6.300000190734863
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:L
EPSS Score
0.05%
15.9th 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 22, 2025 EPSS Score
- Nov 22, 2025 Coalition ESS Score
- Nov 27, 2025 EPSS Score
- Nov 30, 2025 Coalition ESS Score
- Dec 2, 2025 EPSS Score
- Dec 3, 2025 Coalition ESS Score
- Dec 6, 2025 EPSS Score
- Dec 6, 2025 Coalition ESS Score
- Dec 8, 2025 CVE Updated