PT-2026-7533 · Qnap · Qsync Central

Coral · Published 2026-02-11 · Updated 2026-02-16 · CVE-2025-30276

Positive Technologies · (AI Summary)

CVSS v3.1

8.8

High

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Qsync Central versions prior to 5.0.0.4

Description An out-of-bounds write issue exists in Qsync Central. A remote attacker who obtains a user account can potentially modify or corrupt memory.

Recommendations Update to Qsync Central version 5.0.0.4 or later.

Fix

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2025-30276

Affected Products

Qsync Central

References · 6

• https://qnap.com/en/security-advisory/qsa-26-02 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2025-30276 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-30276 · Security Note
• https://twitter.com/CCBalert/status/2022236318646825039 · Twitter Post
• https://t.me/cveNotify/151687 · Telegram Post
• https://twitter.com/cracbot/status/2023351739534266581 · Twitter Post