CVE-2025-62843: CWE-923 in QNAP Systems Inc. QuRouter
CVE-2025-62843 is a vulnerability in QNAP Systems Inc. QuRouter affecting version 2.6.x. It involves improper restriction of communication channels to intended endpoints, which could allow an attacker with physical access to gain privileges intended for the original endpoint. The vulnerability has been fixed in QuRouter version 2.6.3.009 and later. The CVSS 4.
AI Analysis
Technical Summary
This vulnerability (CWE-923) in QNAP QuRouter 2.6.x arises from improper restriction of communication channels to intended endpoints. An attacker with physical access to the device could exploit this flaw to assume privileges meant for the original endpoint. The issue is addressed in QuRouter version 2.6.3.009 and later. The CVSS 4.0 vector indicates the attack requires physical access, has low complexity, no privileges or user interaction needed, and results in low impact on confidentiality, integrity, and availability.
Potential Impact
If exploited, an attacker with physical access can gain privileges intended for the original endpoint, potentially allowing unauthorized control or access. However, the overall impact is rated low due to the requirement for physical access and limited scope of privilege escalation.
Mitigation Recommendations
Upgrade affected QuRouter devices to version 2.6.3.009 or later, where the vulnerability has been fixed. No additional mitigation steps are indicated by the vendor advisory.
CVE-2025-62843: CWE-923 in QNAP Systems Inc. QuRouter
Description
CVE-2025-62843 is a vulnerability in QNAP Systems Inc. QuRouter affecting version 2.6.x. It involves improper restriction of communication channels to intended endpoints, which could allow an attacker with physical access to gain privileges intended for the original endpoint. The vulnerability has been fixed in QuRouter version 2.6.3.009 and later. The CVSS 4.
CVSS v4.0
Score 0.9low
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CWE-923) in QNAP QuRouter 2.6.x arises from improper restriction of communication channels to intended endpoints. An attacker with physical access to the device could exploit this flaw to assume privileges meant for the original endpoint. The issue is addressed in QuRouter version 2.6.3.009 and later. The CVSS 4.0 vector indicates the attack requires physical access, has low complexity, no privileges or user interaction needed, and results in low impact on confidentiality, integrity, and availability.
Potential Impact
If exploited, an attacker with physical access can gain privileges intended for the original endpoint, potentially allowing unauthorized control or access. However, the overall impact is rated low due to the requirement for physical access and limited scope of privilege escalation.
Mitigation Recommendations
Upgrade affected QuRouter devices to version 2.6.3.009 or later, where the vulnerability has been fixed. No additional mitigation steps are indicated by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- qnap
- Date Reserved
- 2025-10-24T02:43:45.372Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 69bdbd93e2bf98efc48d0f57
Added to database: 3/20/2026, 9:35:15 PM
Last enriched: 5/26/2026, 8:15:35 PM
Last updated: 6/19/2026, 3:51:26 PM
Views: 122
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