CVE-2026-26243: CWE-22 in QNAP Systems Inc. Qsync Central
Description
A path traversal vulnerability has been reported to affect Qsync Central. If a remote attacker gains a user account, they can then exploit the vulnerability to read the contents of unexpected files or system data. We have already fixed the vulnerability in the following version: Qsync Central 5.0.0.6 and later Qsync Central 5.1.0.2 and later Qsync Central 5.2.0.4 and later
CVSS v4.0
Score 7.2high
Affected software
QNAP Systems Inc.
Qsync Central
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CWE-22) allows an authenticated remote attacker to perform path traversal in Qsync Central, potentially accessing unauthorized files or system data. The issue affects versions prior to 5.0.0.6, 5.1.0.2, and 5.2.0.4. The CVSS 4.0 score is 7.2, indicating high severity with network attack vector, low attack complexity, no user interaction, and high impact on confidentiality and availability. No known exploits are reported in the wild.
Potential Impact
An attacker who has obtained a user account can exploit this vulnerability to read arbitrary files on the system, potentially exposing sensitive information or system data. This can lead to confidentiality breaches and impact system availability.
Mitigation Recommendations
Upgrade Qsync Central to version 5.0.0.6, 5.1.0.2, 5.2.0.4, or later where the vulnerability has been fixed. No other mitigation steps are indicated by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- qnap
- Date Reserved
- 2026-02-12T02:21:35.483Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6ad0a18a2cdf04f65621d79e
Added to database: 10/15/2026, 09:48:58 UTC
Last enriched: 10/15/2026, 10:04:40 UTC
Last updated: 10/15/2026, 19:00:27 UTC
Views: 12
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