CVE-2025-27363 (GCVE-0-2025-27363)

Vulnerability from cvelistv5 – Published: 2025-03-11 13:28 – Updated: 2026-04-19 22:08
VLAI? CISA KEV
Summary
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.
Severity ?
8.1 (High)
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
CWE
  • Out-of-bounds Write (CWE-787)
Assigner
References
Impacted products
Vendor Product Version
FreeType FreeType Affected: 0.0.0 , ≤ 2.13.0 (semver)
Create a notification for this product.
CISA KEV
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: ba91532c-a5c0-47e9-91d4-f0de55cfb711

Vulnerability ID: CVE-2025-27363

Status: Confirmed

Status Updated: 2025-05-06 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2025-05-06
Asserted: 2025-05-06
Scope
Notes: KEV entry: FreeType Out-of-Bounds Write Vulnerability | Affected: FreeType / FreeType | Description: FreeType contains an out-of-bounds write vulnerability when attempting to parse font subglyph structures related to TrueType GX and variable font files that may allow for arbitrary code execution. | Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. | Due date: 2025-05-27 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): This vulnerability affects a common open-source component, third-party library, or a protocol used by different products. Please check with specific vendors for information on patching status. For more information, please see: https://source.android.com/docs/security/bulletin/2025-05-01 ; https://nvd.nist.gov/vuln/detail/CVE-2025-27363
Evidence

Type: Vendor Report

Signal: Successful Exploitation

Confidence: 80%

Source: cisa-kev

Details
Cwes CWE-787
Feed CISA Known Exploited Vulnerabilities Catalog
Product FreeType
Due Date 2025-05-27
Date Added 2025-05-06
Vendorproject FreeType
Vulnerabilityname FreeType Out-of-Bounds Write Vulnerability
Knownransomwarecampaignuse Unknown
References
Created: 2026-02-02 12:26 UTC | Updated: 2026-02-06 07:17 UTC
Show details on NVD website
To clipboard 

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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