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Vulnerability record · CVE-2018-6197 · published 25 January 2018
CVE-2018-6197: Tats w3m null pointer dereference vulnerability
TTats · W3m
w3m through 0.5.3 is prone to a NULL pointer dereference flaw in formUpdateBuffer in form.c.
7.5 CVSS 3.0 High EPSS 4.4% · top 8.9% CWE-476 · NULL pointer dereference
7.5CVSS 3.0 base score, v2 5.0
4.4%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
14References, 2 tagged exploit
17 Jun 2026Last modified by NVD
Description
w3m through 0.5.3 is prone to a NULL pointer dereference flaw in formUpdateBuffer in form.c.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products
2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.
References
| Link | Tags |
|---|---|
| http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00028.html | |
| http://www.securityfocus.com/bid/102846 | Third Party AdvisoryVDB Entry |
| https://github.com/tats/w3m/commit/7fdc83b0364005a0b5ed869230dd81752ba022e8 | PatchThird Party Advisory |
| https://github.com/tats/w3m/issues/89 | ExploitPatchThird Party Advisory |
| https://lists.debian.org/debian-lts-announce/2020/04/msg00025.html | |
| https://usn.ubuntu.com/3555-1/ | Third Party Advisory |
| https://usn.ubuntu.com/3555-2/ | Third Party Advisory |
| http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00028.html | |
| http://www.securityfocus.com/bid/102846 | Third Party AdvisoryVDB Entry |
| https://github.com/tats/w3m/commit/7fdc83b0364005a0b5ed869230dd81752ba022e8 | PatchThird Party Advisory |
| https://github.com/tats/w3m/issues/89 | ExploitPatchThird Party Advisory |
| https://lists.debian.org/debian-lts-announce/2020/04/msg00025.html | |
| https://usn.ubuntu.com/3555-1/ | Third Party Advisory |
| https://usn.ubuntu.com/3555-2/ | Third Party Advisory |
Track CVE-2018-6197 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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Source: NIST National Vulnerability Database (record CVE-2018-6197), CISA KEV, FIRST EPSS (scores of 2026-10-09). This page is refreshed as NVD updates the record.
