CVE-2025-62526 | THREATINT

Description

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.

PUBLISHED Reserved 2025-10-15 | Published 2025-10-22 | Updated 2025-10-22 | Assigner GitHub_M

HIGH: 7.9CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:H

Problem types

CWE-122: Heap-based Buffer Overflow

Product status

< 24.10.4

affected

References

github.com/...penwrt/security/advisories/GHSA-cp32-65v4-cp73

github.com/...ommit/4b907e69ea58fc0ba35fd1755dc4ba22262af3a4

github.com/...ommit/a7901969932a175cded3c93bdeb65f32ed3705e6

github.com/...ommit/60e04048a0e2f3e33651c19e62861b41be4c290f

github.com/...ommit/aa4a7ee1d3417bc11207ad0a78d579ece7fe0c13

github.com/...ommit/d31effb4277bd557f5ccf16d909422718c1e49d0

openwrt.org/advisory/2025-10-22-1

cve.org (CVE-2025-62526)

nvd.nist.gov (CVE-2025-62526)

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