7.9

CVE-2025-62526

Medienbericht

OpenWrt ubusd vulnerable to heap buffer overflow

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Openwrt ≫ Openwrt Version < 24.10.4
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EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.25% 0.155
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
security-advisories@github.com 7.9 2 5.3
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:H
CWE-122 Heap-based Buffer Overflow

A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().

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VulnDex Intel
Media Report
23.10.2025 08:44
https://github.com/openwrt/openwrt/security/advisories/GHSA-cp32-65v4-cp73
Patch
Vendor Advisory
https://github.com/openwrt/openwrt/commit/4b907e69ea58fc0ba35fd1755dc4ba22262af3a4
Patch
https://github.com/openwrt/openwrt/commit/a7901969932a175cded3c93bdeb65f32ed3705e6
Patch
https://github.com/openwrt/ubus/commit/60e04048a0e2f3e33651c19e62861b41be4c290f
Patch
https://github.com/openwrt/ubus/commit/aa4a7ee1d3417bc11207ad0a78d579ece7fe0c13
Patch
https://github.com/openwrt/ubus/commit/d31effb4277bd557f5ccf16d909422718c1e49d0
Patch
https://openwrt.org/advisory/2025-10-22-1
Third Party Advisory