CVE-2023-5721

CVE-2023-5721: vulnerability in Mozilla Firefox

Published 24 Oct 2023 · Updated 13 Feb 2025

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3Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackepss 0.8%

It was possible for certain browser prompts and dialogs to be activated or dismissed unintentionally by the user due to an insufficient activation-delay. This vulnerability affects Firefox < 119, Firefox ESR < 115.4, and Thunderbird < 115.4.1.

Affected products

Mozilla · Firefox Mozilla · Firefox ESR Mozilla · Thunderbird

Related CVEs — Mozilla Firefox

In the same product, most dangerous first.

CVE-2016-9079HIGHCVE-2016-9079EPSS 87.4%KEV CVE-2019-11708CRITICALCVE-2019-11708EPSS 55.9%KEV CVE-2019-17026HIGHCVE-2019-17026EPSS 46.3%KEV CVE-2019-11707HIGHCVE-2019-11707EPSS 38.0%KEV CVE-2024-9680CRITICALCVE-2024-9680EPSS 23.2%KEV CVE-2022-26485HIGHCVE-2022-26485EPSS 14.3%KEV

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1830820 https://lists.debian.org/debian-lts-announce/2023/10/msg00037.html https://lists.debian.org/debian-lts-announce/2023/10/msg00042.html https://www.debian.org/security/2023/dsa-5535 https://www.debian.org/security/2023/dsa-5538 https://www.mozilla.org/security/advisories/mfsa2023-45/https://www.mozilla.org/security/advisories/mfsa2023-46/https://www.mozilla.org/security/advisories/mfsa2023-47/