CVE-2020-37011

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 v4.0

8.4 HIGHCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v3.1

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

EPSS

0.42% chance of exploitation in the next 30 days, 35th percentile

Published

2026-01-29

Updated

2026-05-26

Proof-of-concept exploits (1)

• https://www.exploit-db.com/exploits/48803

References

• CVE Record
• NVD entry

Related

• CVE-2020-37010
• CVE-2020-37012
• CVE-2020-37009
• CVE-2020-37013
• CVE-2020-37008
• CVE-2020-37014