Description
FontForge SFD File Parsing Deserialization of Untrusted Data 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 deserialization of untrusted data. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-28198.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| FontForge | FontForge | 836f4e11e4cb890353393b36c0465ef445e0c4d4 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | fontforge | No fix yet | — |
| Debian 13 | fontforge | No fix yet | — |
| Debian 12 | fontforge | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | fontforge | No fix yet | — |
| Ubuntu 26.04 LTS | fontforge | No fix yet | — |
| Ubuntu 25.10 | fontforge | No fix yet | — |
| Ubuntu 24.04 LTS | fontforge | No fix yet | — |
| Ubuntu 22.04 LTS | fontforge | No fix yet | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | fontforge | No fix yet | — |
| Ubuntu Pro 18.04 LTS | fontforge | No fix yet | — |
| Ubuntu Pro 16.04 LTS | fontforge | No fix yet | — |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | fontforge +7 | No fix yet | — |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
GitHub 1 repository
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ahmedreda38/CVE-2025-15276-poc ★ 2 · Mar 15, 2026
Proof of concept for CVE-2025-15276 - FontForge SFD File Parsing Deserialization of Untrusted Data Remote Code Execution Vulnerability
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.