PT-2026-1084 · Qnap · Quts Hero+1

Coral · Published 2026-01-02 · Updated 2026-01-02 · CVE-2025-53593

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

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

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

Description A buffer overflow condition exists in QNAP operating systems. Successful exploitation could allow a remote attacker with administrator privileges to modify memory or cause processes to crash.

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

Fix

RCE

Stack Overflow

Memory Corruption

Weakness Enumeration

CWE-121

CWE-787

Related Identifiers

CVE-2025-53593

Affected Products

Qts

Quts Hero

References · 6

• https://osv.dev/vulnerability/CVE-2025-53593 · Vendor Advisory
• https://qnap.com/en/security-advisory/qsa-25-50 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-53593 · Security Note
• https://t.me/CVEtracker/41247 · Telegram Post
• https://twitter.com/VulmonFeeds/status/2007129477642371312 · Twitter Post
• https://twitter.com/CVEnew/status/2007118429841662047 · Twitter Post