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No exploitation reportedFix available

CVE-2020-5496

No exploitation reported by the sources we read.

  • Published2020-01-03
  • WeaknessCWE-787

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

FontForge 20190801 has a heap-based buffer overflow in the Type2NotDefSplines() function in splinesave.c.

Timeline

dates in UTC
  1. 2020-01-0322:15CVE publishedNVD

Versions per branch

NVD
Fontforge
BranchAffectedFixed in
20190801.x= 20190801no fix published
Opensuse leap
BranchAffectedFixed in
15.1= 15.1no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • fontforgeUbuntu:Pro:18.04:LTSall versions · no fixed version listed
  • fontforgeUbuntu:Pro:16.04:LTSall versions · no fixed version listed
  • fontforgeUbuntu:20.04:LTSall versions · no fixed version listed
  • fontforgeSUSE:Linux Enterprise Software Development Kit 12 SP5all versions · fixed in 20170731-11.11.1
  • fontforgeSUSE:Linux Enterprise Software Development Kit 12 SP4all versions · fixed in 20170731-11.11.1
  • fontforgeopenSUSE:Leap 15.1all versions · fixed in 20170731-lp151.4.3.1
  • fontforgeMageia:7all versions · fixed in 20190413-1.1.mga7
  • fontforgeDebian:14all versions · fixed in 1:20201107~dfsg-1

3 more package ranges on OSV.dev

Vendor advisories

  • CVE-2020-5496 Red Hat Product Security

    fontforge: heap-based buffer overflow in the Type2NotDefSplines() function in splinesave.c

Full record on NVD

Fix

No fix published by the sources we read yet. NVD record

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published
2020-01-03
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-v4hc-3q2q-94jp

Frequently asked questions

What is CVE-2020-5496?

FontForge 20190801 has a heap-based buffer overflow in the Type2NotDefSplines() function in splinesave.c.

Is CVE-2020-5496 actively exploited?

Active exploitation of CVE-2020-5496 has not been confirmed. Its EPSS score was 2.4% on 2026-11-08, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2020-5496?

CVE-2020-5496 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

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