CVE-2025-62525

HIGH EPSS 6.9%
Published Oct 22, 20258mo ago · Modified Jun 17, 20261w ago
8.8 CVSS 3.1
High
Find Similar
Published Oct 22, 2025 8mo ago
Last Modified Jun 17, 2026 1w ago

Description

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.

CVSS Details

Base Score
8.8
Exploitability
2.0
Impact
6.0
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Changed
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
6.9% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 3

CWE-125 Out-of-bounds Read Memory Safety
CWE-20 Improper Input Validation Validation
CWE-787 Out-of-bounds Write Memory Safety

Affected Products 1

VendorProductVersionRange
openwrtopenwrt* <24.10.4

References 4

  • github.com https://github.com/openwrt/openwrt/commit/2a76abc5442e3f74d95b4caa9bb57e5488fc132e
    Patch
  • github.com https://github.com/openwrt/openwrt/commit/e001b31163a77683ee741d169f794cfa50926f37
    Patch
  • github.com https://github.com/openwrt/openwrt/security/advisories/GHSA-h427-frpr-7cqr
    PatchVendor Advisory
  • openwrt.org https://openwrt.org/advisory/2025-10-22-2
    Vendor Advisory

Remediation

  • github.com https://github.com/openwrt/openwrt/commit/2a76abc5442e3f74d95b4caa9bb57e5488fc132e
    Patch
  • github.com https://github.com/openwrt/openwrt/commit/e001b31163a77683ee741d169f794cfa50926f37
    Patch
  • github.com https://github.com/openwrt/openwrt/security/advisories/GHSA-h427-frpr-7cqr
    PatchVendor Advisory