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Vulnerability record · CVE-2023-38252 · published 14 July 2023

CVE-2023-38252: Tats w3m out-of-bounds read vulnerability

TTats · W3m

An out-of-bounds read flaw was found in w3m, in the Strnew_size function in Str.c. This issue may allow an attacker to cause a denial of service through a crafted HTML file.

5.5 CVSS 3.1 Medium EPSS 0.36% · top 72.8% CWE-125 · Out-of-bounds read
5.5CVSS 3.1 base score
0.36%EPSS exploitation probability, 30 days
NoNot in CISA KEV
4Affected product versions listed by NVD
9References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

An out-of-bounds read flaw was found in w3m, in the Strnew_size function in Str.c. This issue may allow an attacker to cause a denial of service through a crafted HTML file.

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

Affected products

4 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://access.redhat.com/security/cve/CVE-2023-38252 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2222775 Issue TrackingThird Party Advisory
https://github.com/tats/w3m/issues/270 ExploitIssue TrackingThird Party Advisory
https://access.redhat.com/security/cve/CVE-2023-38252 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2222775 Issue TrackingThird Party Advisory
https://github.com/tats/w3m/issues/270 ExploitIssue TrackingThird Party Advisory
https://lists.fedoraproject.org/archives/list/[email protected]/message/AULOBQJLXE2KCT5UVQMKGEFL4
https://lists.fedoraproject.org/archives/list/[email protected]/message/MKFZQUK7FPWWJQYICDZZ4YWIP
https://lists.fedoraproject.org/archives/list/[email protected]/message/TODROGVCWZ435HQIZE6ARQC5L

Track CVE-2023-38252 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2023-38252), CISA KEV, FIRST EPSS (scores of 2026-09-30). This page is refreshed as NVD updates the record.