PT-2025-40579 · Qnap · Qnap+1

Coral · Published 2025-10-03 · Updated 2025-10-03 · CVE-2025-52857

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 5.2.6.3195 build 20250715 QNAP QuTS hero versions prior to 5.2.6.3195 build 20250715

Description A flaw exists where a remote attacker, having obtained administrator privileges, can trigger a denial-of-service (DoS) condition due to a NULL pointer dereference. The issue involves a vulnerability in QNAP operating systems.

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

Fix

DoS

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

CVE-2025-52857

Affected Products

Qnap

Quts Hero

References · 5

• https://qnap.com/en/security-advisory/qsa-25-36 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2025-52857 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-52857 · Security Note
• https://twitter.com/CVEnew/status/1974177825356661093 · Twitter Post
• https://twitter.com/VulmonFeeds/status/1974221179238908148 · Twitter Post