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CVE

CVE-2025-62525

OpenWrt vulnerable to local privilage escalation
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CVE

CVE-2025-62525

OpenWrt vulnerable to local privilage escalation

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.

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
7.9
-
3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:H
C
H
U
0
-
3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:H
C
H
U
-

Related Resources

No items found.

References

https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/62xxx/CVE-2025-62525.json, https://github.com/openwrt/openwrt/commit/2a76abc5442e3f74d95b4caa9bb57e5488fc132e, https://github.com/openwrt/openwrt/commit/e001b31163a77683ee741d169f794cfa50926f37, https://github.com/openwrt/openwrt/security/advisories/GHSA-h427-frpr-7cqr, https://nvd.nist.gov/vuln/detail/CVE-2025-62525, https://openwrt.org/advisory/2025-10-22-2

Severity

7.9

CVSS Score
0
10

Basic Information

Ecosystem
Base CVSS
7.9
EPSS Probability
0.00027%
EPSS Percentile
0.07014%
Introduced Version
0
Fix Available
78b23a26c4c98938d549e7ff5876508544e33d4d

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