CVE detail

CVE-2020-6820 — Mozilla Firefox And Thunderbird Use-After-Free Vulnerability

Published 2021-11-03 · Modified 2021-11-03 · Source kev

HIGH

severity

CVSS-derived band

n/a

CVSS v3

0–10 scale

0.0630

EPSS probability

exploitation probability, 30d

93.0%

EPSS percentile

percentile vs all CVEs

LISTED

CISA KEV

due 2022-05-03

Description

Mozilla Firefox and Thunderbird contain a race condition vulnerability when handling a ReadableStream under certain conditions. The race condition creates a use-after-free vulnerability, causing unspecified impacts.

Remediation

No vendor-published fix data in our corpus for this CVE. Check the references below or the vendor's PSIRT / security advisories page.

References

cvedb.io · NVD · CISA KEV · FIRST EPSS · vendor advisories (CVE Program List v5). Informational only, no warranty — verify every remediation against the vendor advisory before acting on it. This product uses data from the NVD API but is not endorsed or certified by the NVD, CISA, FIRST.org or any vendor named. CVE® is a registered trademark of The MITRE Corporation.