Is CVE-2022-38223 in the CISA KEV catalog?

No. CVE-2022-38223 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2022-38223?

CVE-2022-38223 has a CVSS v3 base score of 7.8 (HIGH).

What is the EPSS score for CVE-2022-38223?

CVE-2022-38223 has an EPSS score of 0.44% (35th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2022-38223?

Upgrade w3m on debian 11 to 0.5.3+git20210102-6+deb11u1 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2022-38223

HIGH

7.8

CVSS v3

NVD

Description

There is an out-of-bounds write in checkType located in etc.c in w3m 0.5.3. It can be triggered by sending a crafted HTML file to the w3m binary. It allows an attacker to cause Denial of Service or possibly have unspecified other impact.

CWE-787Out-of-bounds Write

How to fix

Remediation Available

w3mDebian

Fixed in:0.5.3+git20210102-6+deb11u1CVE-2022-38223

Fixed in:0.5.3+git20230121-1CVE-2022-38223

w3mUbuntu

Fixed in:0.5.3-15ubuntu0.2+esm1USN-5796-2

Fixed in:0.5.3-36ubuntu0.1USN-5796-1

Fixed in:0.5.3-37ubuntu0.1USN-5796-1

Fixed in:0.5.3+git20210102-6ubuntu0.1USN-5796-1

Fixed in:0.5.3+git20220429-1ubuntu0.1USN-5796-1

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 VectorLocal

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.44%probability of exploitation in 30 days

35thpercentile

Low risk: more likely to be exploited than 35% of all known CVEs.

References

Exploit1

github.com

Other references8

Related Vulnerabilities

Other CWE-787 (Out-of-bounds Write) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2025-22457	Critical	9.0	100%	KEV + Ransom	Fix
CVE-2025-0282	Critical	9.0	100%	KEV + Ransom	-
CVE-2015-3113	Critical	9.8	100%	KEV	Fix
CVE-2021-20038	Critical	9.8	100%	KEV + Ransom	-
CVE-2023-4863	High	8.8	100%	KEV	Fix
CVE-2020-16040	Medium	6.5	100%	-	Fix

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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 2025-11-04.