CVE-2020-37011

8.4 highEPSS 0.4%

High (8.4). EPSS 0.4% chance of exploitation in the next 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.

Severity

CVSS 4.0

8.4 high

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS 3.1

7.5 high

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

EPSS: 0.4% chance of exploitation in the next 30 days; higher than 38% of CVEs (scores of 2026-10-31)
CWE: CWE-787
Published: 2026-01-29
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

References

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

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