CVE-2023-32214

Name: CVE-2023-32214
Creator: NVD / NIST
Published: 2023-06-19T10:15:09.613+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.92%

Last modified Jun 17, 2026

CVE-2023-32214 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Protocol handlers `ms-cxh` and `ms-cxh-full` could have been leveraged to trigger a denial of service. *Note: This attack only affects Windows. Other operating systems are not affected.* This vulnerability affects Firefox < 113, Firefox ESR < 102.11, and Thunderbird < 102.11.. EPSS estimates a 0.92% chance of exploitation in the next 30 days.

Description

Protocol handlers `ms-cxh` and `ms-cxh-full` could have been leveraged to trigger a denial of service. *Note: This attack only affects Windows. Other operating systems are not affected.* This vulnerability affects Firefox < 113, Firefox ESR < 102.11, and Thunderbird < 102.11.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

0.92%

55.6th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Mozilla	Firefox	< 113.0
Mozilla	Firefox Esr	< 102.11
Mozilla	Thunderbird	< 102.11

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1828716Permissions Required
https://security.gentoo.org/glsa/202312-03
https://security.gentoo.org/glsa/202401-10
https://www.mozilla.org/security/advisories/mfsa2023-16/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-17/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-18/Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1828716Permissions Required
https://security.gentoo.org/glsa/202312-03
https://security.gentoo.org/glsa/202401-10
https://www.mozilla.org/security/advisories/mfsa2023-16/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-17/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-18/Vendor Advisory

Timeline

Published: Jun 19, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-32214?

How severe is CVE-2023-32214?

CVE-2023-32214 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.92% probability of exploitation in the next 30 days.

How do I fix CVE-2023-32214?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-32214?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST