Critical 9.8Published Sep 3, 2018

CVE-2018-16428In GNOME GLib 2.56.1, g_markup_parse_context_end_parse() in gmarkup.c has a NULL pointer dereference.

Updated under an hour ago (Nov 2, 2026, 12:20 AM ET)

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It affects gnome glib and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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In GNOME GLib 2.56.1, g_markup_parse_context_end_parse() in gmarkup.c has a NULL pointer dereference.

CVSS: 9.8 CRITICAL (v3.0, NVD)CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-476
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Not given
NVD analysis: Modified
Record last updated: Jun 16, 2026
First seen by InfoSec Signals: Nov 1, 2026

Affected products

Affected products

gnome glib gnome:glib	2.56.1	NVD
canonical ubuntu_linux canonical:ubuntu_linux	12.04; 14.04; 16.04; 18.04	NVD

References

References

http://www.openwall.com/lists/oss-security/2020/02/14/3
http://www.securityfocus.com/bid/105210	third-party-advisory, vdb-entry
https://gitlab.gnome.org/GNOME/glib/commit/fccef3cc822af74699cca84cd202719ae61ca3b9	patch, vendor-advisory
https://gitlab.gnome.org/GNOME/glib/issues/1364	exploit, vendor-advisory
https://lists.debian.org/debian-lts-announce/2019/07/msg00029.html
https://usn.ubuntu.com/3767-1/	third-party-advisory
https://usn.ubuntu.com/3767-2/	third-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.