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CVE-2025-48769— Apache NuttX RTOS: fs/vfs/fs_rename: use after free

Quick assessment

Affected
Apache Software Foundation Apache NuttX RTOS
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Apache NuttX是美国阿帕奇（Apache）基金会的一套实时嵌入式操作系统。 Apache NuttX 12.11.0之前版本存在资源管理错误漏洞，该漏洞源于释放后重用，可能导致虚拟文件系统重命名或移动操作结果异常。

AI Predicted 7.8 Difficulty: Hard EPSS 1.57% · P75
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I. Basic Information for CVE-2025-48769

Vulnerability Information
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Vulnerability Title
Apache NuttX RTOS: fs/vfs/fs_rename: use after free
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
释放后使用
Source: CVE Program / CVE List V5
Vulnerability Title
Apache NuttX 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Apache NuttX是美国阿帕奇（Apache）基金会的一套实时嵌入式操作系统。 Apache NuttX 12.11.0之前版本存在资源管理错误漏洞，该漏洞源于释放后重用，可能导致虚拟文件系统重命名或移动操作结果异常。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Apache Software Foundation Apache NuttX RTOS 7.20 ~ 12.11.0 -

II. Public POCs for CVE-2025-48769

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III. Intelligence Information for CVE-2025-48769

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Patches & Fixes for CVE-2025-48769 (1)

Mailing List Discussions for CVE-2025-48769 (1)

Same Patch Batch · Apache Software Foundation · 2026-01-01 · 3 CVEs total

CVE-2025-47411 Apache StreamPipes: Leverage of User ID for Privilege Escalation
CVE-2025-48768 Apache NuttX RTOS: fs/inode: fs_inoderemove root inode removal

IV. Related Vulnerabilities

Same product: Apache NuttX RTOS
Same vendor: Apache Software Foundation
Same weakness: CWE-416

V. Comments for CVE-2025-48769

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