Cyber Resilience

CVE-2021-43545

MediumDDoS

Published: 08 December 2021

Published
08 December 2021
Modified
21 November 2024
KEV Added
—
Patch
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CVSS Score v3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
EPSS Score 0.0036 58.3th percentile
Risk Priority 13 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-43545 is a medium-severity Excessive Iteration (CWE-834) vulnerability in Debian Debian Linux. Its CVSS base score is 6.5 (Medium).

Operationally, ranked in the top 41.7% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

Using the Location API in a loop could have caused severe application hangs and crashes. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95.

CWE(s)
CWE-834

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

mozilla
firefox
≤ 95.0
mozilla
firefox esr
≤ 91.4.0
mozilla
thunderbird
≤ 91.4.0
debian
debian linux
10.0, 11.0, 9.0

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References