High 7.8Published Jul 5, 2023

CVE-2023-37208When opening Diagcab files, Firefox did not warn the user that these files may contain malicious code.

Updated under an hour ago (Oct 27, 2026, 6:23 AM ET)

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It affects mozilla firefox and 3 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

When opening Diagcab files, Firefox did not warn the user that these files may contain malicious code. This vulnerability affects Firefox < 115, Firefox ESR < 102.13, and Thunderbird < 102.13.

CVSS: 7.8 HIGH (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-434
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Not given
NVD analysis: Modified
Record last updated: Oct 24, 2026
First seen by InfoSec Signals: Oct 24, 2026

Affected products

Affected products

mozilla firefox mozilla:firefox	before 115.0	NVD
mozilla firefox_esr mozilla:firefox_esr	before 102.13	NVD
mozilla thunderbird mozilla:thunderbird	before 102.13	NVD
debian debian_linux debian:debian_linux	10.0; 11.0; 12.0	NVD

References

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1837675	issue-tracking, permissions-required
https://lists.debian.org/debian-lts-announce/2023/07/msg00006.html	mailing-list, third-party-advisory
https://lists.debian.org/debian-lts-announce/2023/07/msg00015.html
https://www.debian.org/security/2023/dsa-5450	third-party-advisory
https://www.debian.org/security/2023/dsa-5451	third-party-advisory
https://www.mozilla.org/security/advisories/mfsa2023-22/	vendor-advisory
https://www.mozilla.org/security/advisories/mfsa2023-23/	vendor-advisory
https://www.mozilla.org/security/advisories/mfsa2023-24/	vendor-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.