Is CVE-2022-2200 in the CISA KEV catalog?

No. CVE-2022-2200 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2022-2200?

CVE-2022-2200 has a CVSS v3 base score of 8.8 (HIGH).

What is the EPSS score for CVE-2022-2200?

CVE-2022-2200 has an EPSS score of 23.94% (98th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2022-2200?

Upgrade firefox on debian unstable to 102.0-1 or later. Fixes are available for 7 affected products.

CVE & CISA-KEV Catalog

CVE-2022-2200

HIGHEPSS 98th pctl

8.8

CVSS v3

NVD

Description

If an object prototype was corrupted by an attacker, they would have been able to set undesired attributes on a JavaScript object, leading to privileged code execution. This vulnerability affects Firefox < 102, Firefox ESR < 91.11, Thunderbird < 102, and Thunderbird < 91.11.

CWE-1321

How to fix

Remediation Available

firefoxDebian

Fixed in:102.0-1CVE-2022-2200

firefoxUbuntu

Fixed in:102.0+build2-0ubuntu0.18.04.1USN-5504-1

Fixed in:102.0+build2-0ubuntu0.20.04.1USN-5504-1

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:102.0Fixed in:102.0Mozilla

Mozilla Firefox (en-US)Windows application

Affected:102.0Fixed in:102.0Mozilla

Mozilla Firefox ESR (en-US)Windows application

Affected:91.11Fixed in:91.11Mozilla

Mozilla Thunderbird (en-US)Windows application

Affected:91.11Fixed in:91.11Mozilla

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

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

23.94%probability of exploitation in 30 days

98thpercentile

Very high risk: more likely to be exploited than 98% of all known CVEs.

References

Vendor Advisory4

Related Vulnerabilities

Other CWE-1321 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2019-0230	Critical	9.8	97%	-	-
CVE-2019-11358	Medium	6.1	87%	-	Fix
CVE-2020-7774	High	7.3	69%	-	Fix
CVE-2022-24760	Critical	10.0	49%	-	Fix
CVE-2022-39396	Critical	9.8	39%	-	Fix
CVE-2022-2564	Critical	9.8	33%	-	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.