CVE-2025-15269
Use-After-Free in FontForge SFD Parsing Enables Remote Code Execution
Publication date: 2025-12-31
Last updated on: 2025-12-31
Assigner: Zero Day Initiative
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| fontforge | fontforge | * |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-416 | The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is a use-after-free flaw in FontForge's parsing of SFD files. It occurs because the software does not properly check if an object exists before operating on it, which can lead to memory corruption. An attacker can exploit this by tricking a user into opening a malicious file or visiting a malicious webpage, allowing the attacker to execute arbitrary code with the user's privileges. [1]
How can this vulnerability impact me? :
If exploited, this vulnerability allows an attacker to execute arbitrary code on your system with the same privileges as the current user. This can lead to unauthorized actions such as installing malware, stealing data, or taking control of your system. [1]
What immediate steps should I take to mitigate this vulnerability?
To mitigate this vulnerability, avoid opening untrusted SFD files or visiting untrusted webpages that might contain malicious FontForge files. Ensure that users are aware of the risk and do not interact with suspicious files or links. Additionally, apply any available patches or updates from FontForge once released to fix the parsing flaw. [1]