Is CVE-2022-45417 in the CISA KEV catalog?

No. CVE-2022-45417 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2022-45417?

CVE-2022-45417 has a CVSS v3 base score of 4.3 (MEDIUM).

What is the EPSS score for CVE-2022-45417?

CVE-2022-45417 has an EPSS score of 0.41% (33th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2022-45417?

Upgrade firefox on debian unstable to 107.0-1 or later. Fixes are available for 4 affected products.

CVE & CISA-KEV Catalog

CVE-2022-45417

MEDIUM

4.3

CVSS v3

NVD

Description

Service Workers did not detect Private Browsing Mode correctly in all cases, which could have led to Service Workers being written to disk for websites visited in Private Browsing Mode. This would not have persisted them in a state where they would run again, but it would have leaked Private Browsing Mode details to disk. This vulnerability affects Firefox < 107.

CWE-1021

How to fix

Remediation Available

firefoxDebian

Fixed in:107.0-1CVE-2022-45417

firefoxUbuntu

Fixed in:107.0+build2-0ubuntu0.18.04.1USN-5726-1

Fixed in:107.0+build2-0ubuntu0.20.04.1USN-5726-1

DeveloperEditionWindows application

Affected:107.0Fixed in:107.0Mozilla

Mozilla Firefox (en-US)Windows application

Affected:107.0Fixed in:107.0Mozilla

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

ConfidentialityLow

IntegrityNone

AvailabilityNone

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

Exploit Intelligence

0.41%probability of exploitation in 30 days

33rdpercentile

Low risk: more likely to be exploited than 33% of all known CVEs.

References

Vendor Advisory2

Related Vulnerabilities

Other CWE-1021 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2021-21132	Critical	9.6	23%	-	Fix
CVE-2011-1244	Medium	5.8	15%	-	-
CVE-2013-2682	Medium	4.3	6.3%	-	-
CVE-2021-21139	Medium	6.5	4.7%	-	Fix
CVE-2017-11290	Medium	6.1	3.0%	-	-
CVE-2008-2716	Medium	5.0	3.0%	-	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.