High 8.1Known exploited (CISA KEV)Published Mar 11, 2025

CVE-2025-27363An 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 variab…

Updated under an hour ago (2026-10-19 06:30 UTC)

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It affects FreeType and 1 other product. Add what you run to find out whether that includes you.

CISA lists it as known exploited since May 6, 2025; federal agencies had to remediate by May 27, 2025. Treat that date as your deadline.

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Exploited in the last 30 days

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.

CVSS: 8.1 HIGH (v3.1, CNA)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
Weakness (CWE): CWE-787
Known exploited: Added to CISA KEV May 6, 2025; federal remediation due May 27, 2025Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
EPSS (exploitation in the next 30 days): 27.77% (percentile 98)
Assigned by: facebook
NVD analysis: Analyzed
Record last updated: Apr 19, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

FreeType FreeType freetype:freetype (from the name)	from 0.0.0 through 2.13.0	CNA record
freetype freetype freetype:freetype	through 2.13.0	NVD
debian debian_linux debian:debian_linux	11.0	NVD

References

https://www.facebook.com/security/advisories/cve-2025-27363x-refsource-confirm, third-party-advisory
http://www.openwall.com/lists/oss-security/2025/03/13/1mailing-list
http://www.openwall.com/lists/oss-security/2025/03/13/11mailing-list
http://www.openwall.com/lists/oss-security/2025/03/13/12mailing-list
http://www.openwall.com/lists/oss-security/2025/03/13/2mailing-list
http://www.openwall.com/lists/oss-security/2025/03/13/3mailing-list
http://www.openwall.com/lists/oss-security/2025/03/13/8mailing-list
http://www.openwall.com/lists/oss-security/2025/03/14/1mailing-list
http://www.openwall.com/lists/oss-security/2025/03/14/2mailing-list
http://www.openwall.com/lists/oss-security/2025/03/14/3mailing-list
http://www.openwall.com/lists/oss-security/2025/03/14/4mailing-list
http://www.openwall.com/lists/oss-security/2025/05/06/3mailing-list
http://www.openwall.com/lists/oss-security/2026/04/16/5mailing-list
http://www.openwall.com/lists/oss-security/2026/04/19/3mailing-list
https://lists.debian.org/debian-lts-announce/2025/03/msg00030.htmlmailing-list
https://source.android.com/docs/security/bulletin/2025-05-01third-party-advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-27363us-government-resource

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.