medium5.9
CVE-2026-34085
fontconfig before 2.17.1 has an off-by-one error in allocation during sfnt capability handling, leading to a one-byte out-of-bounds write, and potentially a cr…
Impact
fontconfig before 2.17.1 has an off-by-one error in allocation during sfnt capability handling, leading to a one-byte out-of-bounds write, and potentially a crash or code execution. This is in FcFontCapabilities in fcfreetype.c.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Fontconfig Project | Fontconfig | Version 2.17.0 |