CVE-2024-4367
critical-risk
Published 2024-05-14
A type check was missing when handling fonts in PDF.js, which would allow arbitrary JavaScript execution in the PDF.js context. This vulnerability affects Firefox < 126, Firefox ESR < 115.11, and Thunderbird < 115.11.
Do I need to act?
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34.6% chance of exploitation in next 30 days
EPSS score — higher than 65% of all CVEs
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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1 public exploit available
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.8/10
High
NETWORK
/ LOW complexity
Affected Products (20)
Open-Xchange Appsuite Frontend
Open-Xchange Appsuite Frontend
Open-Xchange Appsuite Frontend
Open-Xchange Appsuite Frontend
Open-Xchange Appsuite Frontend
Open-Xchange Appsuite Frontend
Open-Xchange Appsuite Frontend
Open-Xchange Appsuite Frontend
Open-Xchange Appsuite Frontend
Open-Xchange Appsuite Frontend
Open-Xchange Appsuite Frontend
Open-Xchange Appsuite Frontend
Open-Xchange Appsuite Frontend
Open-Xchange Appsuite Frontend
Open-Xchange Appsuite Frontend
Open-Xchange Appsuite Frontend
Affected Vendors
References (17)
Issue Tracking
https://bugzilla.mozilla.org/show_bug.cgi?id=1893645
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2024-21/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2024-22/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2024-23/
Mailing List
http://seclists.org/fulldisclosure/2024/Aug/30
Issue Tracking
https://bugzilla.mozilla.org/show_bug.cgi?id=1893645
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2024-21/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2024-22/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2024-23/
71
/ 100
critical-risk
Severity
30/34 · Critical
Exploitability
16/34 · Moderate
Exposure
25/34 · High