CVE-2025-11933
6.5
MEDIUM
CVSS 3.1
EPSS 0.06%
Description
Improper Input Validation in the TLS 1.3 CKS extension parsing in wolfSSL 5.8.2 and earlier on multiple platforms allows a remote unauthenticated attacker to potentially cause a denial-of-service via a crafted ClientHello message with duplicate CKS extensions.
How to fix CVE-2025-11933
No fixed version has been published yet. Mitigate by removing the affected package or applying upstream guidance from the references below.
- Debian/wolfssl—no fix listed
Is CVE-2025-11933 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |