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Medium severity6.5NVD Advisory· Published Feb 11, 2026· Updated Jun 17, 2026

CVE-2025-30266

CVE-2025-30266

Description

A NULL pointer dereference vulnerability has been reported to affect Qsync Central. If a remote attacker gains a user account, they can then exploit the vulnerability to launch a denial-of-service (DoS) attack.

We have already fixed the vulnerability in the following version: Qsync Central 5.0.0.4 ( 2026/01/20 ) and later

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

4
  • QNAP Systems Inc./Qsync Centralv5
    Range: 5.0.x.x
  • Qnap/Qsync Central2 versions
    cpe:2.3:a:qnap:qsync_central:*:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:a:qnap:qsync_central:*:*:*:*:*:*:*:*range: >=5.0.0.0,<5.0.0.4
    • (no CPE)range: >=5.0.0.4
  • Qsync/Qsync Centralllm-fuzzy
    Range: >=5.0.0.4

Patches

Vulnerability mechanics

References

1

News mentions

0

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