Resource allocation without limits in QNAP Qsync Central
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- Present
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-770.
Summary
An allocation of resources without limits or throttling vulnerability has been reported to affect Qsync Central. If a remote attacker gains an administrator account, they can then exploit the vulnerability to prevent other systems, applications, or processes from accessing the same type of resource. We have already fixed the vulnerability in the following version: Qsync Central 5.0.0.4 ( 2026/01/20 ) 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
- Fix · CNA Qsync Central (QNAP Systems Inc.) Fixed in 5.0.0.4 ( 2026/01/20 )
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
QNAP Systems Qsync Central 5.0.0.4 ( 2026/01/20 )
27 records Highest priority Priority LOW 27 LOW
Other records, highest priority first
- TI-2025-34013 Out-of-bounds read in QNAP Qsync CentralPriority LOW 23
- TI-2025-21595 Out-of-bounds write in QNAP Qsync CentralPriority LOW 23
- TI-2025-33994 Uncontrolled resource consumption in QNAP Qsync CentralPriority LOW 22
Timeline
- 2026-10-02 Threatist record created from CVE-2025-57711
- 2026-10-03 Alias added: GHSA-g4hh-hm34-58p5
References
More QNAP Qsync Central vulnerabilities
- TI-2025-33996 SQL injection in QNAP Qsync Central CVSS 4.0HIGH 8.6
- TI-2025-33532 SQL injection in QNAP Qsync Central CVSS 4.0HIGH 8.6
- TI-2025-21280 SQL injection in QNAP Qsync Central CVSS 4.0HIGH 8.7
- TI-2023-25732 Incorrect permission assignment in QNAP Qsync Central CVSS 3.1HIGH 8.1
- TI-2025-21597 Improper certificate validation in QNAP Qsync Central CVSS 4.0HIGH 8.3
- TI-2025-21596 Improper certificate validation in QNAP Qsync Central CVSS 4.0HIGH 8.3
Sources
- CVE-2025-57711 · CVE Program
- CVE-2025-57711 · NVD
- FIRST EPSS
- GHSA-g4hh-hm34-58p5 · GitHub Advisory Database · CC BY 4.0
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