Security Resilience

CVE-2023-4577

Mozilla Firefox ≤ 117.0

Published
11 September 2023
Modified
21 November 2024
Patch / advisory
View advisory
CVSS Score v3.1 6.5
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
EPSS Score 0.0065 50th percentile
Risk Priority 51 floored blend · peak EPSS

CVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.

Summary

CVE-2023-4577 is a medium-severity an unspecified weakness vulnerability in Mozilla Firefox. Its CVSS base score is 6.5 (Medium).

Operationally, ranked in the top 50% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability Data

When `UpdateRegExpStatics` attempted to access `initialStringHeap` it could already have been garbage collected prior to entering the function, which could potentially have led to an exploitable crash. This vulnerability affects Firefox < 117, Firefox ESR < 115.2, and Thunderbird <…

more

115.2.

CWE(s)
NVD-CWE-noinfo

Related Threats

CVEs Like This One

CVE-2023-25751Same product: Mozilla Firefox
CVE-2023-32213Same product: Mozilla Firefox
CVE-2023-23598Same product: Mozilla Firefox
CVE-2023-32215Same product: Mozilla Firefox
CVE-2024-7526Same product: Mozilla Firefox
CVE-2024-7518Same product: Mozilla Firefox
CVE-2023-4585Same product: Mozilla Firefox
CVE-2023-25742Same product: Mozilla Firefox
CVE-2023-25739Same product: Mozilla Firefox
CVE-2023-4578Same product: Mozilla Firefox

Affected Assets

mozilla
firefox
≤ 117.0
mozilla
firefox esr
≤ 115.2
mozilla
thunderbird
≤ 115.2

Mitigating Controls

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

References