CVE-2025-48723 — Classic Buffer Overflow in Systems INC Qsync Central

CWE-120 — Classic Buffer OverflowCWE-122 — Heap-based Buffer Overflow3 documents3 sources
Severity
0.6LOWNVD
EPSS
0.0%
top 88.19%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Qnap Systems INC Qsync CentralQnap Qsync Central
Timeline
PublishedFeb 11

Description

A buffer overflow vulnerability has been reported to affect Qsync Central. If a remote attacker gains a user account, they can then exploit the vulnerability to modify memory or crash processes. We have already fixed the vulnerability in the following version: Qsync Central 5.0.0.4 ( 2026/01/20 ) and later

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

Affected Packages2 packages

▶NVDqnap/qsync_central5.0.0.0 — 5.0.0.4
▶CVEListV5qnap_systems_inc/qsync_central5.0.x.x — 5.0.0.4 ( 2026/01/20 )

🔴Vulnerability Details

2
GHSA
GHSA-q5vh-ff4q-5j62: A buffer overflow vulnerability has been reported to affect Qsync Central↗2026-02-11
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CVEList
Qsync Central↗2026-02-11
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CVE-2025-48723 — Classic Buffer Overflow | cvebase