What’s Vulnerable › Vulnerabilities

CVE-2019-25005

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-12-31 · updated 2026-06-17
• Weakness: CWE-190

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.

Affected products

• Chacha20 Project Chacha20: before 0.2.3 — fixed in 0.2.3

How to fix

Upgrade to a fixed version: Chacha20 Project Chacha20 0.2.3. Check the vendor advisory for mitigations.

References

• https://rustsec.org/advisories/RUSTSEC-2019-0029.html
• https://rustsec.org/advisories/RUSTSEC-2019-0029.html

Get alerted when CVE-2019-25005 or the next vulnerability affects your stack