High 7.5Published Jan 29, 2026

CVE-2020-37011Gnome Fonts Viewer 3.34.0 Heap Corruption

Updated under an hour ago (Oct 27, 2026, 2:00 PM ET)

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No exploitation reported and no EPSS estimate yet.

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Every CVE for GNOME Fonts Viewer

Exploited in the last 30 days

Gnome Fonts Viewer 3.34.0 contains a heap corruption vulnerability that allows attackers to trigger an out-of-bounds write by crafting a malicious TTF font file. Attackers can generate a specially crafted TTF file with an oversized pattern to exhaust memory through repeated malloc() calls and potentially crash the gnome-font-viewer process.

CVSS: 7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): CWE-787
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulnCheck
NVD analysis: Deferred
Record last updated: May 26, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

GNOME Fonts Viewer gnome:fonts_viewer (from the name)	3.34.0	CNA record

References

References

https://www.exploit-db.com/exploits/48803	exploit
https://help.gnome.org/	product
https://apps.gnome.org/FontViewer/	product
https://www.vulncheck.com/advisories/gnome-fonts-viewer-heap-corruption	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.