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CVE-2020-37011

Gnome Fonts Viewer 3.34.0 Heap Corruption

Published: Jan 29, 2026Updated: May 26, 2026 Sources: CVE List NVDCWE-787
NVD MITRE
7.5CVSSHIGH
EPSS Score
0.4%
Top 67.4%
CISA KEV
Not in KEV
Exploits
1 Known
Remediation
No Fix Available

Description

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 Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
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Weaknesses

CWE-787

Affected Products

Fonts ViewerGNOME
On-prem
Consumer Software / productivity
gnomeoss-projectUSConsumer Softwareaka gnome project, glib

Attack Graph

Products CVE Techniques Tactics

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Exploitability

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://www.exploit-db.com/exploits/48803
exploit-db.com
https://help.gnome.org/
help.gnome.org
https://apps.gnome.org/FontViewer/
apps.gnome.org
and 1 more references View all →

Timeline

Published
Jan 29, 2026
Last Updated
May 26, 2026

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