Is CVE-2022-46880 in the CISA KEV catalog?

No. CVE-2022-46880 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2022-46880?

CVE-2022-46880 has a CVSS v3 base score of 6.5 (MEDIUM).

What is the EPSS score for CVE-2022-46880?

CVE-2022-46880 has an EPSS score of 0.65% (47th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2022-46880?

Upgrade firefox on debian unstable to 105.0-1 or later. Fixes are available for 6 affected products.

CVE & CISA-KEV Catalog

CVE-2022-46880

MEDIUM

6.5

CVSS v3

NVD

Description

A missing check related to tex units could have led to a use-after-free and potentially exploitable crash. *Note*: This advisory was added on December 13th, 2022 after we better understood the impact of the issue. The fix was included in the original release of Firefox 105. This vulnerability affects Firefox ESR < 102.6, Firefox < 105, and Thunderbird < 102.6.

CWE-416Use After Free

How to fix

Remediation Available

firefoxDebian

Fixed in:105.0-1CVE-2022-46880

thunderbirdUbuntu

Fixed in:1:102.7.1+build2-0ubuntu0.18.04.1USN-5824-1

Fixed in:1:102.7.1+build2-0ubuntu0.20.04.1USN-5824-1

Fixed in:1:102.7.1+build2-0ubuntu0.22.04.1USN-5824-1

Fixed in:1:102.7.1+build2-0ubuntu0.22.10.1USN-5824-1

DeveloperEditionWindows application

Affected:105.0Fixed in:105.0Mozilla

Mozilla Firefox (en-US)Windows application

Affected:105.0Fixed in:105.0Mozilla

Mozilla Firefox ESR (en-US)Windows application

Affected:102.6Fixed in:102.6Mozilla

Mozilla Thunderbird (en-US)Windows application

Affected:102.6Fixed in:102.6Mozilla

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

0.65%probability of exploitation in 30 days

47thpercentile

Moderate risk: more likely to be exploited than 47% of all known CVEs.

References

Vendor Advisory3

Issue Tracking1

bugzilla.mozilla.org

Other references2

Related Vulnerabilities

Other CWE-416 (Use After Free) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2019-0708	Critical	9.8	100%	KEV + Ransom	-
CVE-2021-31166	Critical	9.8	100%	KEV	Fix
CVE-2015-5119	Critical	9.8	99%	KEV	-
CVE-2010-3962	High	8.1	97%	KEV	-
CVE-2015-0313	Critical	9.8	96%	KEV	Fix
CVE-2017-9798	High	7.5	95%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-04-15.