OpenWrt vulnerable to local privilage escalation

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2025-62525
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2025-10-22 15:16:07 UTC
Updated2026-10-19 16:10:00 UTC
DescriptionOpenWrt 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.

Risk And Classification

Primary CVSS: v3.1 8.8 HIGH from [email protected]

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

EPSS: 0.001890000 probability, percentile 0.080480000 (date 2026-10-19)

Problem Types: CWE-20 | CWE-125 | CWE-787 | CWE-20 CWE-20: Improper Input Validation | CWE-125 CWE-125: Out-of-bounds Read | CWE-787 CWE-787: Out-of-bounds Write

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary8.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
3.1[email protected]Secondary7.9HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:H
3.1CNADECLARED7.9HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:H

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Openwrt Openwrt All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Openwrt Openwrt affected < 24.10.4 Not specified

References

ReferenceSourceLinkTags
github.com/openwrt/openwrt/commit/2a76abc5442e3f74d95b4caa9bb57e5488fc132e [email protected] github.com Patch
github.com/openwrt/openwrt/commit/e001b31163a77683ee741d169f794cfa50926f37 [email protected] github.com Patch
github.com/openwrt/openwrt/security/advisories/GHSA-h427-frpr-7cqr [email protected] github.com Patch, Vendor Advisory
openwrt.org/advisory/2025-10-22-2 [email protected] openwrt.org Vendor Advisory
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