CVE-2021-29939

HighCVSS 7.3/10Last modified Jun 17, 2026

Description

An issue was discovered in the stackvector crate through 2021-02-19 for Rust. There is an out-of-bounds write in StackVec::extend if size_hint provides certain anomalous data.

Metrics

CVSS 3.1 7.3/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Weakness enumeration

CWE-787

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

https://rustsec.org/advisories/RUSTSEC-2021-0048.htmlExploit, Vendor Advisory
https://rustsec.org/advisories/RUSTSEC-2021-0048.htmlExploit, Vendor Advisory

Timeline

Published: Apr 1, 2021
Last modified: Jun 17, 2026
NVD status: Modified

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