CVE-2025-62525: OpenWrt Project is a Linux operating system targeting embedded devices. Prior to version 24.10.4, local users could…
CVE-2025-62525 · Severity: high · CVSS 7.9 · Published 2025-10-22
OpenWrt Project is a Linux operating system targeting embedded devices. Prior to version 24.10.4, local users could read and write arbitrary kernel memory using the ioctls of the ltq-ptm driver which is used to drive the datapath of the DSL line. This only effects the lantiq target supporting xrx200, danube and amazon SoCs from Lantiq/Intel/MaxLinear with the DSL in PTM mode. The DSL driver for the VRX518 is not affected. ATM mode is also not affected. Most VDSL lines use PTM mode and most ADSL lines use ATM mode. OpenWrt is normally running as a single user system, but some services are sandboxed. This vulnerability could allow attackers to escape a ujail sandbox or other contains. This is fixed in OpenWrt 24.10.4. There are no workarounds.
No. Junglewise Threat Intelligence has no report of CVE-2025-62525 being exploited in the wild.
How severe is CVE-2025-62525?
High severity, with a CVSS score of 7.9, published 22 October 2025.
Which products and versions are affected?
OpenWrt. The advisory does not name versions.
Is there a fix for CVE-2025-62525?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
Am I affected by CVE-2025-62525?
Check whether you run OpenWrt. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.