CVE-2025-62526
highpriority · track · 31EPSS 0.003 · 17 %ileDEEURUUSEPSS · scored 2026-10-27
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.
remediations
Vendor fix, mitigation, or workaround guidance, as published by each source.
A vendor fix is available.
- FixedFirmware 3.22 installed with Baade Linux <4.65 on TCP/IP-Web-Connector 1xCOM since 2018baade_m2m_psirt
Baade M2M-Products GmbH recommends to upgrade the Baade Linux OS version of our Products TCP/IP-Web-Connector 1xCOM (since 2018) and TCP/IP-Web-Connector 4xCOM to version 4.65 or later to fix the ubusd security vulnerability.
- FixedFirmware 3.22 installed with Baade Linux <4.65 on TCP/IP-Web-Connector 4xCOMbaade_m2m_psirt
Baade M2M-Products GmbH recommends to upgrade the Baade Linux OS version of our Products TCP/IP-Web-Connector 1xCOM (since 2018) and TCP/IP-Web-Connector 4xCOM to version 4.65 or later to fix the ubusd security vulnerability.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (7)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- VDE-2025-098Baade M2M-Products GmbH: ubusd heap buffer overflow vulnerability in OpenWRT prior to version 24.10.42026-04-02csaf · baade_m2m_psirtDE
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.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (23)
External citations — patches, advisories, analysis.
- https://access.redhat.com/security/cve/cve-2025-62526cnnvd
- https://github.com/openwrt/openwrt/commit/4b907e69ea58fc0ba35fd1755dc4ba22262af3a4cnnvd
- https://github.com/openwrt/openwrt/commit/a7901969932a175cded3c93bdeb65f32ed3705e6cnnvd
- https://github.com/openwrt/openwrt/releasesPatchcnnvd
- https://github.com/openwrt/openwrt/security/advisories/GHSA-cp32-65v4-cp73cnnvd
- https://github.com/openwrt/ubus/commit/60e04048a0e2f3e33651c19e62861b41be4c290fcnnvd
- https://github.com/openwrt/ubus/commit/aa4a7ee1d3417bc11207ad0a78d579ece7fe0c13cnnvd
- https://github.com/openwrt/ubus/commit/d31effb4277bd557f5ccf16d909422718c1e49d0cnnvd
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