Is CVE-2022-31741 in the CISA KEV catalog?

No. CVE-2022-31741 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2022-31741?

CVE-2022-31741 has a CVSS v3 base score of 8.8 (HIGH).

What is the EPSS score for CVE-2022-31741?

CVE-2022-31741 has an EPSS score of 0.66% (47th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2022-31741?

Upgrade firefox on debian unstable to 101.0-1 or later. Fixes are available for 7 affected products.

CVE & CISA-KEV Catalog

CVE-2022-31741

HIGH

8.8

CVSS v3

NVD

Description

A crafted CMS message could have been processed incorrectly, leading to an invalid memory read, and potentially further memory corruption. This vulnerability affects Thunderbird < 91.10, Firefox < 101, and Firefox ESR < 91.10.

CWE-908

How to fix

Remediation Available

firefoxDebian

Fixed in:101.0-1CVE-2022-31741

firefoxUbuntu

Fixed in:101.0.1+build1-0ubuntu0.18.04.1USN-5475-1

Fixed in:101.0.1+build1-0ubuntu0.20.04.1USN-5475-1

thunderbirdUbuntu

Fixed in:1:91.11.0+build2-0ubuntu0.18.04.1USN-5512-1

Fixed in:1:91.11.0+build2-0ubuntu0.20.04.1USN-5512-1

Fixed in:1:91.11.0+build2-0ubuntu0.22.04.1USN-5512-1

DeveloperEditionWindows application

Affected:101Fixed in:101Mozilla

Mozilla Firefox (en-US)Windows application

Affected:101Fixed in:101Mozilla

Mozilla Firefox ESR (en-US)Windows application

Affected:91.10Fixed in:91.10Mozilla

Mozilla Thunderbird (en-US)Windows application

Affected:91.10Fixed in:91.10Mozilla

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

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.66%probability of exploitation in 30 days

47thpercentile

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

References

Vendor Advisory4

Related Vulnerabilities

Other CWE-908 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2025-5777	High	7.5	100%	KEV + Ransom	Fix
CVE-2023-24941	Critical	9.8	95%	-	Fix
CVE-2007-1751	High	9.3	61%	-	-
CVE-2008-0081	Critical	9.8	58%	-	-
CVE-2020-1934	Medium	5.3	52%	-	Fix
CVE-2011-1255	High	9.3	42%	-	-

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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.