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Case File

CVE-2020-11501

HIGH · CVSS 7.4 EPSS 3.39%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2020-04-03 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 7.4. See the original NVD description below for full technical details.

CVE
CVE-2020-11501
Severity
HIGH
CVSS
7.4
EPSS
3.39%

Original NVD 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.

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