CVE-2020-35858

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 3.4% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2020-12-31 · updated 2026-06-17
Weakness: CWE-787

Description

An issue was discovered in the prost crate before 0.6.1 for Rust. There is stack consumption via a crafted message, causing a denial of service (e.g., x86) or possibly remote code execution (e.g., ARM).

Affected products

Prost Project Prost: before 0.6.1 — fixed in 0.6.1

How to fix

Upgrade to a fixed version: Prost Project Prost 0.6.1. Check the vendor advisory for mitigations.

References

https://rustsec.org/advisories/RUSTSEC-2020-0002.html
https://rustsec.org/advisories/RUSTSEC-2020-0002.html

Get alerted when CVE-2020-35858 or the next vulnerability affects your stack