CVE-2025-52863 — Classic Buffer Overflow in Systems INC QTS

CWE-120 — Classic Buffer Overflow3 documents3 sources
Severity
1.3LOWNVD
EPSS
0.1%
top 65.33%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
4
Qnap Systems INC QTSQnap Systems INC Quts HeroQnap QTS+1 more
Timeline
PublishedJan 2

Description

A buffer overflow vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains a user account, they can then exploit the vulnerability to modify memory or crash processes. We have already fixed the vulnerability in the following versions: QTS 5.2.7.3256 build 20250913 and later QuTS hero h5.2.7.3256 build 20250913 and later QuTS hero h5.3.0.3192 build 20250716 and later

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N

Affected Packages4 packages

▶CVEListV5qnap_systems_inc/quts_heroh5.2.x — h5.2.7.3256 build 20250913+1
▶NVDqnap/quts_hero18 versions+17
▶CVEListV5qnap_systems_inc/qts5.2.x — 5.2.7.3256 build 20250913
▶NVDqnap/qts16 versions+15

🔴Vulnerability Details

2
GHSA
GHSA-2m4f-hqj2-29hr: A buffer overflow vulnerability has been reported to affect several QNAP operating system versions↗2026-01-02
▶
CVEList
QTS, QuTS hero↗2026-01-02
▶
CVE-2025-52863 — Classic Buffer Overflow | cvebase