CVE-2025-27363
HIGHCVSS v3
8.1
HIGH
EPSS Score
76.2%
exploit probability
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
An out of bounds write exists in FreeType versions 2.13.0 and below (newer versions of FreeType are not vulnerable) 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.
Technical Details
- Published
- 3/11/2025
Frequently Asked Questions
What is CVE-2025-27363?
An out of bounds write exists in FreeType versions 2.13.0 and below (newer versions of FreeType are not vulnerable) 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.
Is CVE-2025-27363 actively exploited?
Active exploitation of CVE-2025-27363 has not been confirmed. The EPSS score is 76.2%, indicating the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2025-27363?
CVE-2025-27363 has a CVSS v3 base score of 8.1 (HIGH severity).
Is CVE-2025-27363 affecting your environment?
Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.