CVE-2025-62526

OpenWrt Project is a Linux operating system targeting embedded devices. Prior to version 24.10.4, ubusd contains a heap buffer overflow in the event registration parsing code. This allows an attacker to modify the head and potentially execute arbitrary code in the context of the ubus daemon. The affected code is executed before running the ACL checks, all ubus clients are able to send such messages. In addition to the heap corruption, the crafted subscription also results in a bypass of the listen ACL. This is fixed in OpenWrt 24.10.4. There are no workarounds.

CVSS v3 7.9 HIGH

7.9^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.0 / Impact : 5.3

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact HIGH

Scope CHANGED

References

Link	Resource
https://github.com/openwrt/openwrt/commit/4b907e69ea58fc0ba35fd1755dc4ba22262af3a4
https://github.com/openwrt/openwrt/commit/a7901969932a175cded3c93bdeb65f32ed3705e6
https://github.com/openwrt/openwrt/security/advisories/GHSA-cp32-65v4-cp73
https://github.com/openwrt/ubus/commit/60e04048a0e2f3e33651c19e62861b41be4c290f
https://github.com/openwrt/ubus/commit/aa4a7ee1d3417bc11207ad0a78d579ece7fe0c13
https://github.com/openwrt/ubus/commit/d31effb4277bd557f5ccf16d909422718c1e49d0
https://openwrt.org/advisory/2025-10-22-1

Configurations

No configuration.

History

22 Oct 2025, 15:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-10-22 15:16

Updated : 2025-10-22 21:12

NVD link : CVE-2025-62526

Mitre link : CVE-2025-62526

CVE.ORG link : CVE-2025-62526

JSON object : View

Products Affected

No product.

CWE

CWE-122

Heap-based Buffer Overflow

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