CVE & CISA-KEV Catalog

CVE-2022-1802

HIGHEPSS 98th pctl
8.8
CVSS v3
NVD

Description

If an attacker was able to corrupt the methods of an Array object in JavaScript via prototype pollution, they could have achieved execution of attacker-controlled JavaScript code in a privileged context. This vulnerability affects Firefox ESR < 91.9.1, Firefox < 100.0.2, Firefox for Android < 100.3.0, and Thunderbird < 91.9.1.

CWE-1321

How to fix

Remediation Available
firefoxDebian
Fixed in:100.0.2-1CVE-2022-1802
firefoxUbuntu
Fixed in:100.0.2+build1-0ubuntu0.18.04.1USN-5434-1
Fixed in:100.0.2+build1-0ubuntu0.20.04.1USN-5434-1
thunderbirdUbuntu
Fixed in:1:91.9.1+build1-0ubuntu0.18.04.1USN-5435-1
Fixed in:1:91.9.1+build1-0ubuntu0.20.04.1USN-5435-1
Fixed in:1:91.9.1+build1-0ubuntu0.22.04.1USN-5435-1
DeveloperEditionWindows application
Affected:100.3.0Fixed in:100.3.0Mozilla
Affected:100.0.2Fixed in:100.0.2Mozilla
Mozilla Firefox (en-US)Windows application
Affected:100.3.0Fixed in:100.3.0Mozilla
Affected:100.0.2Fixed in:100.0.2Mozilla
Mozilla Firefox ESR (en-US)Windows application
Affected:91.9.1Fixed in:91.9.1Mozilla
Mozilla Thunderbird (en-US)Windows application
Affected:91.9.1Fixed in:91.9.1Mozilla

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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

26.71%probability of exploitation in 30 days
98thpercentile

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

References

Related Vulnerabilities

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

CVESeverityCVSSEPSSExploitedFix
CVE-2019-0230Critical9.897%--
CVE-2019-11358Medium6.187%-Fix
CVE-2020-7774High7.369%-Fix
CVE-2022-24760Critical10.049%-Fix
CVE-2022-39396Critical9.839%-Fix
CVE-2022-2564Critical9.833%-Fix
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CVE-2022-1802 severity badge

Markdown

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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 2025-04-16.