CVE-2023-5176
moderate-risk
Published 2023-09-27
Memory safety bugs present in Firefox 117, Firefox ESR 115.2, and Thunderbird 115.2. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 118, Firefox ESR < 115.3, and Thunderbird < 115.3.
Do I need to act?
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0.70% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.8/10
Critical
NETWORK
/ LOW complexity
Affected Products (6)
References (16)
Third Party Advisory
https://www.debian.org/security/2023/dsa-5506
Third Party Advisory
https://www.debian.org/security/2023/dsa-5513
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-41/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-42/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-43/
Third Party Advisory
https://www.debian.org/security/2023/dsa-5506
Third Party Advisory
https://www.debian.org/security/2023/dsa-5513
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-41/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-42/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-43/
47
/ 100
moderate-risk
Severity
32/34 · Critical
Exploitability
2/34 · Minimal
Exposure
13/34 · Low