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

Vulnerability from cvelistv5 – Published: 2025-03-11 13:28 – Updated: 2026-04-19 22:08
VLAI CISA KEVIntel
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
SSVC
Exploitation: active Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • Out-of-bounds Write (CWE-787)
  • CWE-787 - Out-of-bounds Write
Assigner
References
Impacted products
Vendor Product Version
FreeType FreeType Affected: 0.0.0 , ≤ 2.13.0 (semver)
Create a notification for this product.
CISA
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
KEVIntel
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: f0d0b184-3bc7-4e76-aa7a-35a1f2f3368f

Vulnerability ID: CVE-2025-27363

Status: Confirmed

Status Updated: 2025-05-06 07:17 UTC

Exploited: Yes

Timestamps
First Seen: 2025-05-06
Asserted: 2025-05-06
Scope
Notes: KEVIntel entry: 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... | Affected: FreeType / FreeType | CVSS: 8.1 (HIGH) | EPSS: 0.23357 | Used in malware: unknown | Not yet in CISA KEV: False
Evidence

Type: Public Report

Signal: Successful Exploitation

Confidence: 70%

Source: kevintel

Details
Feed KEVIntel (kevintel.com)
Title 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...
Vendor FreeType
Product FreeType
Added Date 2025-05-06T07:17:25.771Z
Cvss Score 8.1
Epss Score 0.23357
Cvss Severity HIGH
Epss Percentile 0.97491
Used In Malware unknown
Ahead Of Cisa Kev 
{
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  "unit": "day"
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Not Yet In Cisa Kev False
References
Created: 2026-06-23 14:04 UTC | Updated: 2026-06-23 14:04 UTC
Show details on NVD website
To clipboard 

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      "dataType": "CVE_RECORD",
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}


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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • 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.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.