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Vulnerability record · CVE-2018-10196 · published 30 May 2018

CVE-2018-10196: Graphviz null pointer dereference vulnerability

Graphviz · Graphviz

NULL pointer dereference vulnerability in the rebuild_vlists function in lib/dotgen/conc.c in the dotgen library in Graphviz 2.40.1 allows remote attackers to cause a denial of service (application crash) via a crafted file.

5.5 CVSS 3.0 Medium EPSS 1.7% · top 23.8% CWE-476 · NULL pointer dereference
5.5CVSS 3.0 base score, v2 4.3
1.7%EPSS exploitation probability, 30 days
NoNot in CISA KEV
3Affected product versions listed by NVD
12References
17 Jun 2026Last modified by NVD

Description

NULL pointer dereference vulnerability in the rebuild_vlists function in lib/dotgen/conc.c in the dotgen library in Graphviz 2.40.1 allows remote attackers to cause a denial of service (application crash) via a crafted file.

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Affected products

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

References

LinkTags
https://bugzilla.redhat.com/show_bug.cgi?id=1579254 Issue TrackingThird Party Advisory
https://gitlab.com/graphviz/graphviz/issues/1367 PatchThird Party Advisory
https://lists.debian.org/debian-lts-announce/2021/05/msg00014.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/N6VR2CT3LD52GWAQUZAOSEX
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TWUEEJPMS5LAROYJYY6FREO
https://usn.ubuntu.com/3731-1/ Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1579254 Issue TrackingThird Party Advisory
https://gitlab.com/graphviz/graphviz/issues/1367 PatchThird Party Advisory
https://lists.debian.org/debian-lts-announce/2021/05/msg00014.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/N6VR2CT3LD52GWAQUZAOSEX
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TWUEEJPMS5LAROYJYY6FREO
https://usn.ubuntu.com/3731-1/ Third Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2018-10196), CISA KEV, FIRST EPSS (scores of 2026-10-02). This page is refreshed as NVD updates the record.