Observable timing discrepancy in QNAP QuRouter exposes sensitive data
Key facts
- Attack vector
- Adjacent network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-208.
Summary
QNAP QuRouter contains an observable timing discrepancy flaw (CWE-208) that lets a remote attacker obtain sensitive data. The source description does not give further detail about how the timing difference can be measured. Affected QuRouter versions are from 2.7.x before 2.7.2.113. Remote attackers without privileges can exploit the flaw over the network, with low attack complexity.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Description from the CNA
An observable timing discrepancy vulnerability has been reported to affect QuRouter. If exploited, the vulnerability could allow remote attackers to obtain sensitive data. We have already fixed the vulnerability in the following version: QuRouter 2.7.2.113 and later
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
Update QuRouter to version 2.7.2.113 or later, which fixes the vulnerability.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
- Fix · CNA QuRouter (QNAP Systems Inc.) Fixed in 2.7.2.113
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
QNAP Systems QuRouter 2.7.2.113
2 records Highest priority Priority LOW 2 LOW
Other records, highest priority first
- TI-2025-43920 External control of configuration setting in QNAP QuRouterPriority LOW 20
Timeline
- 2026-10-15 Threatist record created from CVE-2026-24715
- 2026-10-16 Alias added: GHSA-999x-q88r-vrgc
- 2026-10-16 CISA SSVC decision points changed
References
More QNAP vulnerabilities
- TI-2022-10581 DeadBolt Ransomware KEVCVSS 3.1CRITICAL 10.0
- TI-2021-09791 Improper Authorization Vulnerability in HBS 3 (Hybrid Backup Sync) KEVCVSS 3.1CRITICAL 10.0
- TI-2020-02221 Command Injection Vulnerability in QTS and QuTS hero KEVCVSS 3.1CRITICAL 9.8
- TI-2019-05103 Path traversal in QNAP NAS devices running Photo Station KEVCVSS 3.1CRITICAL 9.8
- TI-2019-05102 Path traversal in QNAP NAS devices running Photo Station KEVCVSS 3.1CRITICAL 9.8
- TI-2019-05101 Improper input validation in QNAP NAS devices KEVCVSS 3.1CRITICAL 9.8
Sources
- CVE-2026-24715 · CVE Program
- CVE-2026-24715 · NVD
- FIRST EPSS
- GHSA-999x-q88r-vrgc · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences