CVE-2025-48769

Use After Free vulnerability was discovered in fs/vfs/fs_rename code of the Apache NuttX RTOS, that due recursive implementation and single buffer use by two different pointer variables allowed arbitrary user provided size buffer reallocation and write to the previously freed heap chunk, that in specific cases could cause unintended virtual filesystem rename/move operation results. This issue affects Apache NuttX RTOS: from 7.20 before 12.11.0. Users of virtual filesystem based services with write access especially when exposed over the network (i.e. FTP) are affected and recommended to upgrade to version 12.11.0 that fixes the issue.

CVSS v3 8.1 HIGH

8.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/apache/nuttx/pull/16455	Issue Tracking
https://lists.apache.org/thread/7m83v11ldfq7bvw72n9t5sccocczocjn	Mailing List Vendor Advisory
http://www.openwall.com/lists/oss-security/2025/12/31/11	Mailing List Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:apache:nuttx:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-01-01 17:15

Updated : 2026-01-06 14:35

NVD link : CVE-2025-48769

Mitre link : CVE-2025-48769

CVE.ORG link : CVE-2025-48769

JSON object : View

Products Affected

apache

nuttx

CWE

CWE-416

Use After Free

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