OpenWrt Project up to 24.10.3 DSL Driver access control

CVSS Meta Temp Score
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CTI Interest Score
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7.3$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in OpenWrt Project up to 24.10.3. Impacted is an unknown function of the component DSL Driver. Such manipulation leads to access control. This vulnerability is listed as CVE-2025-62525. The attack must be carried out locally. There is no available exploit. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in OpenWrt Project up to 24.10.3 and classified as critical. Affected by this issue is an unknown function of the component DSL Driver. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. Impacted is confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is available at github.com. This vulnerability is handled as CVE-2025-62525 since 10/15/2025. The exploitation is known to be easy. Local access is required to approach this attack. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1068 by the MITRE ATT&CK project.

The vulnerability scanner Nessus provides a plugin with the ID 276871 (Linux Distros Unpatched Vulnerability : CVE-2025-62525), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 24.10.4 eliminates this vulnerability. Applying the patch 2a76abc5442e3f74d95b4caa9bb57e5488fc132e is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at Tenable (276871). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔒

CNA Base Score: 7.9
CNA Vector (GitHub_M): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-284 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 276871
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2025-62525

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: OpenWrt Project 24.10.4
Patch: 2a76abc5442e3f74d95b4caa9bb57e5488fc132e

Timelineinfo

10/15/2025 CVE reserved
10/22/2025 +7 days Advisory disclosed
10/22/2025 +0 days VulDB entry created
11/28/2025 +37 days VulDB entry last update

Sourcesinfo

Advisory: GHSA-h427-frpr-7cqr
Status: Confirmed

CVE: CVE-2025-62525 (🔒)
GCVE (CVE): GCVE-0-2025-62525
GCVE (VulDB): GCVE-100-329378

Entryinfo

Created: 10/22/2025 17:55
Updated: 11/28/2025 03:20
Changes: 10/22/2025 17:55 (67), 10/31/2025 07:02 (11), 11/28/2025 03:20 (2)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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