CVE-2023-32214

Mozilla Firefox and 4 others: Protocol handlers `ms-cxh` and `ms-cxh-full` could have been leveraged to trigger a denial of service.

CVE-2023-32214 is fixed in 3 products on 1 platform, first by Mozilla Firefox (en-US) 113.0, released May 10, 2023. It is not reported as exploited. Patch Radar priority: High.

High
CVSS
7.5
No vendor severity
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0092
60th percentile

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.

Where it's fixed

ProductFixed inFixReleased
Windows apps
Mozilla Firefox (en-US) 113.0 Mozilla Firefox (en-US) 113.0 May 10, 2023
Mozilla Firefox ESR (en-US) 115.4.0 Mozilla Firefox ESR (en-US) 115.4.0 Oct 17, 2023
Mozilla Thunderbird (en-US) 115.8.0 Mozilla Thunderbird (en-US) 115.8.0 Feb 21, 2024

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