CVE-2021-26951

CriticalCVSS 9.8/10Last modified Jun 17, 2026

Description

An issue was discovered in the calamine crate before 0.17.0 for Rust. It allows attackers to overwrite heap-memory locations because Vec::set_len is used without proper memory claiming, and this uninitialized memory is used for a user-provided Read operation, as demonstrated by Sectors::get.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-787 CWE-908

Affected software

No affected versions have been published.

Timeline

Published: Feb 9, 2021
Last modified: Jun 17, 2026
NVD status: Modified

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