CVE-2019-25005

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CVSS 3.1

7.5 high

EPSS

1%p69

Published

Dec 31, 2020 (Dec 31, 2020)

Modified

Jun 17, 2026

Description

An issue was discovered in the chacha20 crate before 0.2.3 for Rust. A ChaCha20 counter overflow makes it easier for attackers to determine plaintext.

Vendors: chacha20 project
Products: chacha20
Weakness: CWE-190
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

NVD CVE.org GitHub PoCs EPSS (1.3%)

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