Skip to content
Fencer Vulns
high 7.5

CVE-2023-32214 json

Protocol handlers `ms-cxh` and `ms-cxh-full` could have been leveraged to trigger a denial of service.

published 2023-06-19 3 y ago modified 2026-10-23 16 d ago also EUVD-2023-36472

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.9%
EPSS 0.9% chance of exploitation in 30 days, percentile 60%
public exploits
0
none known

Summary

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.

Patch / fix

  • Mozilla Firefox 113
  • Mozilla Firefox ESR 102.11
  • Mozilla Thunderbird 102.11
  • MozillaThunderbird SLE Workstation Extension 15 SP4, SLE Module for Package Hub 15 SP4, openSUSE Leap 15.4 102.11.0-150200.8.116.1
  • MozillaFirefox SLES for SAP 12 SP5, SLES for SAP 12 SP4, SLES 12 SP5 +6 more 102.11.0-112.159.1
  • MozillaFirefox SLES for SAP 15 SP3, SLES for SAP 15 SP2, SLES 15 SP3-LTSS +9 more 102.11.0-150200.152.87.1
  • MozillaFirefox SLES for SAP 15 SP1, SLES 15 SP1-LTSS, SLE High Performance Computing 15 SP1-LTSS 102.11.0-150000.150.85.1

suse advisories SUSE-SU-2023:2211-1SUSE-SU-2023:2176-1SUSE-SU-2023:2175-1SUSE-SU-2023:2173-1

  • firefox-esr openSUSE Tumbleweed 128.5.1-1.1
  • MozillaFirefox openSUSE Tumbleweed 113.0-1.1
  • MozillaThunderbird openSUSE Tumbleweed 102.11.0-1.1

opensuse advisories openSUSE-SU-2024:14572-1openSUSE-SU-2024:12920-1openSUSE-SU-2024:12921-1

  • firefox-esr Alpine 3.23, Alpine 3.22, Alpine 3.21 +3 more 102.11.0-r0

alpine advisories ALPINE-CVE-2023-32214

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2023-32214 updated cvss 6.5

Mozilla: Potential DoS via exposed protocol handlers

  • Red Hat Enterprise Linux 6 firefox, thunderbird Red Hat Enterprise Linux 7 firefox, thunderbird Red Hat Enterprise Linux 8 firefox, thunderbird Red Hat Enterprise Linux 9 firefox, firefox-x11, thunderbird
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.92% chance of exploitation in the next 30 days, higher than 60% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

  • Mozilla Firefox
  • Mozilla Firefox ESR
  • Mozilla Thunderbird

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.