High severity · published Jan 3, 2020
CVE-2020-5496
FontForge 20190801 has a heap-based buffer overflow in the Type2NotDefSplines() function in splinesave.c
8.8
CVSS
2.4%
EPSS
No
On KEV
Description
FontForge 20190801 has a heap-based buffer overflow in the Type2NotDefSplines() function in splinesave.c.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.4% · higher than 84% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FO
Fontforge · Fontforge
20190801 · source: NVD
LE
Leap · Opensuse
15.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-5496
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-5496
Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00041.html
Exploit
https://github.com/fontforge/fontforge/issues/4085
lists.debian.org
https://lists.debian.org/debian-lts-announce/2024/03/msg00007.html
Third Party Advisory
https://security.gentoo.org/glsa/202004-14
More from Fontforge
9.8
CVE-2019-15785
FontForge 20190813 through 20190820 has a buffer overflow in PrefsUI_LoadPrefs in prefs.c
8.8
CVE-2025-15280
FontForge SFD File Parsing Use-After-Free Remote Code Execution Vulnerability
8.8
CVE-2025-15275
FontForge SFD File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability
8.8
CVE-2025-15274
FontForge SFD File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability
8.8
CVE-2025-15273
FontForge PFB File Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability