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CVE-2022-38223

26
FAUCET Score

CVE-2022-38223 describes an out-of-bounds write vulnerability in the checkType function of w3m 0.5.3, affecting Fedora and w3m products. This high-severity flaw (CVSS 7.8) can be triggered by a crafted HTML file, leading to Denial of Service or potentially other unspecified impacts, requiring user interaction for exploitation. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
0.5.3CPE matchmatch criteria
cpe:2.3:a:tats:w3m:0.5.3:*:*:*:*:*:*:*
36CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*
37CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.45%
Probability of exploitation in next 30 days
EPSS Percentile
36.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0045 is in the 37th percentile among its peer group of 11,617 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2022-38223Important

w3m: an out-of-bounds write in checkType located in etc.c in w3m

Aug 15, 2022

References

lists.fedoraproject.org / archives/list/[email protected]/message/AULOBQJLXE2KCT5UVQMKGEFL4GFIAOED
lists.fedoraproject.org / archives/list/[email protected]/message/TODROGVCWZ435HQIZE6ARQC5LPQLIA5C
github.com / tats/w3m/issues/242
ExploitIssue TrackingThird Party Advisory
lists.debian.org / debian-lts-announce/2023/08/msg00030.html
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/AULOBQJLXE2KCT5UVQMKGEFL4GFIAOED
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/MKESIFZMWIFMI6DRGMUYOTVKBOSEKDXZ
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/MKFZQUK7FPWWJQYICDZZ4YWIPUPQ2D3R
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/NRRZMTLG3YT6U3PSGJOAMLDNLRF2EUOP
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/TODROGVCWZ435HQIZE6ARQC5LPQLIA5C