PT-2026-1083 · Qnap · Qnap+1

Coral · Published 2026-01-02 · Updated 2026-01-02 · CVE-2025-53592

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions QNAP versions prior to 5.2.7.3256 build 20250913 QuTS hero versions prior to h5.2.7.3256 build 20250913 QuTS hero versions prior to h5.3.1.3250 build 20250912

Description A NULL pointer dereference issue exists in QNAP operating systems. A remote attacker who has obtained a user account can exploit this issue to cause a denial-of-service (DoS) attack.

Recommendations Update to QTS version 5.2.7.3256 build 20250913 or later. Update to QuTS hero version h5.2.7.3256 build 20250913 or later. Update to QuTS hero version h5.3.1.3250 build 20250912 or later.

Fix

DoS

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

CVE-2025-53592

Affected Products

Qnap

Quts Hero

References · 6

• https://qnap.com/en/security-advisory/qsa-25-50 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2025-53592 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-53592 · Security Note
• https://twitter.com/VulmonFeeds/status/2007137157169680567 · Twitter Post
• https://twitter.com/CVEnew/status/2007118430760239346 · Twitter Post
• https://t.me/CVEtracker/41246 · Telegram Post