CVE-2025-27363: An out of bounds write exists in FreeType versions 2.13.0 and below when attempting to parse font subglyph structures related to TrueType GX and...
Description
An out of bounds write exists in FreeType versions 2.13.0 and below when attempting to parse font subglyph structures related to TrueType GX and variable font files. The vulnerable code assigns a signed short value to an unsigned long and then adds a static value causing it to wrap around and allocate too small of a heap buffer. The code then writes up to 6 signed long integers out of bounds relative to this buffer. This may result in arbitrary code execution. This vulnerability may have been exploited in the wild.
Known Exploited
🚨 Marked as known exploited on April 17th, 2025 (2 days ago).
Classification
CVE ID: CVE-2025-27363
CVSS Base Severity: HIGH
CVSS Base Score: 8.1
CVSS Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C/CR:H/IR:H/AR:H/MAV:N/MAC:L/MPR:N/MUI:N/MS:U/MC:H/MI:H/MA:H
Problem Types
Out-of-bounds Write (CWE-787)Affected Products
Vendor: FreeType
Product: FreeType
Exploit Prediction Scoring System (EPSS)
EPSS Score: 5.37% (probability of being exploited)
EPSS Percentile: 89.17% (scored less or equal to compared to others)
EPSS Date: 2025-04-09 (when was this score calculated)
Stakeholder-Specific Vulnerability Categorization (SSVC)
SSVC Exploitation: none
SSVC Technical Impact: total
SSVC Automatable: false
References
https://nvd.nist.gov/vuln/detail/CVE-2025-27363https://www.facebook.com/security/advisories/cve-2025-27363