Skip to main content
No exploitation reported

CVE-2025-15271

No exploitation reported by the sources we read.

  • Published2025-12-31
  • WeaknessCWE-129

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 SFD File Parsing Improper Validation of Array Index Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of FontForge. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of SFD files. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated array. An attacker can leverage this vulnerability to execute code in the context of the current user. Was ZDI-CAN-28562.

Timeline

dates in UTC
  1. 2025-12-3107:15CVE publishedNVD

Versions per branch

NVD
Fontforge
BranchAffectedFixed in
2025.x= 2025-11-17no fix published

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

Products declared by the CNA1 product

As zdi, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • FontForgeother versions: unknown
    Affected
    • = aca4f524c6cb14cdc7bc4cd493492a33f5154797no fix stated

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2025-12-31

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:26.10all versions · no fixed version listed
  • fontforgeUbuntu:26.04:LTSall versions · no fixed version listed
  • fontforgeUbuntu:25.10all versions · no fixed version listed
  • fontforgeUbuntu:24.04:LTSall versions · no fixed version listed
  • fontforgeUbuntu:22.04:LTSall versions · no fixed version listed
  • fontforgeUbuntu:20.04:LTSall versions · no fixed version listed

3 more package ranges on OSV.dev

Vendor advisories

  • CVE-2025-15271 Red Hat Product Security10 known affected

    fontforge: FontForge: Remote Code Execution via SFD file parsing vulnerability

    fontforge.src as a component of Red Hat Enterprise Linux 10 · fontforge-devel as a component of Red Hat Enterprise Linux 6 · fontforge.src as a component of Red Hat Enterprise Linux 6 · +7 more

Full record on NVD

Fix

  1. Workaround from the vendor Red Hat Product Security CVE-2025-15271 · 10 productsTo mitigate this issue, users should exercise caution when handling SFD (Spline Font Database) files from untrusted sources. Avoid opening SFD files from unknown or suspicious origins. If FontForge is not actively used, consider removing the `fontforge` package to eliminate the attack surface. This…
  2. No fix available, says the vendor Red Hat Product Security CVE-2025-15271 · 8 productsAffected
  3. No fix planned, says the vendor Red Hat Product Security CVE-2025-15271 · 2 productsOut of support scope

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:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published
2025-12-31
Last Modified
2026-06-17
NVD status
Analyzed
GitHub Advisory
GHSA-gwg7-r3vr-jqwf

Frequently asked questions

What is CVE-2025-15271?

FontForge SFD File Parsing Improper Validation of Array Index Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of FontForge. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of SFD files. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated array. An attacker can leverage this vulnerability to execute code in the context of the current user. Was ZDI-CAN-28562.

Is CVE-2025-15271 actively exploited?

Active exploitation of CVE-2025-15271 has not been confirmed. Its EPSS score was 0.6% on 2026-11-08, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2025-15271?

CVE-2025-15271 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Running fontforge? Hear about its next vulnerability

Surveillance reads the versions in your stack — a domain, a lockfile or a list — checks each CVE against the ranges its sources publish, and alerts you when one you run is exploited or enters CISA KEV. A version it cannot read stays « version not verified ».

Get alerts for this productCISA KEV additions, November 2026Search CVEs

No credit card required · No monthly cap on website lookups · 250 API requests/month

Go further

Related vulnerabilities

Same product first, then the same vendor advisory and the same publication week.

Back to CVE Database

Sources for this record