CVE-2020-11501EPSS p88.6%
CVE-2020-11501CVE-2020-11501
gnu / gnutls
Description
GnuTLS 3.6.x before 3.6.13 uses incorrect cryptography for DTLS. The earliest affected version is 3.6.3 (2018-07-16) because of an error in a 2017-10-06 commit. The DTLS client always uses 32 '\0' bytes instead of a random value, and thus contributes no randomness to a DTLS negotiation. This breaks the security guarantees of the DTLS protocol.
Scoring
| CVSS | 7.4 () |
| Vector | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N |
| EPSS | 3.39% probability of exploitation · percentile 88.6% · 2026-10-17T12:00:28Z |
| Last modified | 2026-10-14 |