PT-2026-7534 · Qnap · Qnap Qts+1

Coral · Published 2026-02-11 · Updated 2026-02-27 · CVE-2025-47205

Positive Technologies (AI Summary)

CVSS v4.0

5.1

Medium

Base vector

AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

Name of the Vulnerable Software and Affected Versions QNAP QTS versions prior to 5.2.8.3332 build 20251128 QNAP QuTS hero versions prior to h5.2.8.3321 build 20251117

Description A NULL pointer dereference issue exists in QNAP operating systems. A remote attacker gaining administrator privileges can exploit this to cause a denial-of-service (DoS) condition.

Recommendations Update QTS to version 5.2.8.3332 build 20251128 or later. Update QuTS hero to version h5.2.8.3321 build 20251117 or later.

Fix

DoS

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

CVE-2025-47205

Affected Products

Qnap Qts

Qnap Quts Hero

References · 5

• https://qnap.com/en/security-advisory/qsa-26-05 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2025-47205 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-47205 · Security Note
• https://t.me/cveNotify/153460 · Telegram Post
• https://t.me/cveNotify/151688 · Telegram Post