PT-2025-40584 · Qnap · Quts Hero+1

Coral · Published 2025-10-03 · Updated 2025-10-03 · CVE-2025-52866

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 versions prior to QTS 5.2.6.3195 build 20250715 QNAP versions prior to QuTS hero h5.2.6.3195 build 20250715

Description A flaw exists that could allow a remote attacker to cause a denial-of-service (DoS) condition. The attacker must first obtain an administrator account to exploit this issue. The issue is due to a NULL pointer dereference.

Recommendations Update QTS to version 5.2.6.3195 build 20250715 or later. Update QuTS hero to version h5.2.6.3195 build 20250715 or later.

Fix

DoS

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

CVE-2025-52866

Affected Products

Qts

Quts Hero

References · 6

• https://qnap.com/en/security-advisory/qsa-25-36 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-52866 · Security Note
• https://osv.dev/vulnerability/CVE-2025-52866 · Vendor Advisory
• https://twitter.com/VulmonFeeds/status/1974205821799030796 · Twitter Post
• https://twitter.com/CVEnew/status/1974184332114702404 · Twitter Post
• https://t.me/CVEtracker/34031 · Telegram Post