CVE-2021-29982

MediumCVSS 6.5/10Last modified Jun 17, 2026

Description

Due to incorrect JIT optimization, we incorrectly interpreted data from the wrong type of object, resulting in the potential leak of a single bit of memory. This vulnerability affects Firefox < 91 and Thunderbird < 91.

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Weakness enumeration

CWE-772

Affected software

No affected versions have been published.

Timeline

Published
Aug 17, 2021
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2021

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CVE-2021-29982: Medium severity, CVSS 6.5 | Vulnix