High severity · published Dec 16, 2025
CVE-2025-62847
An improper neutralization of argument delimiters in a command vulnerability has been reported to affect several QNAP operating system versions
7.5
CVSS
0.8%
EPSS
No
On KEV
Description
An improper neutralization of argument delimiters in a command vulnerability has been reported to affect several QNAP operating system versions. The remote attackers can then exploit the vulnerability to alter execution logic.
We have already fixed the vulnerability in the following versions:
QTS 5.2.7.3297 build 20251024 and later
QuTS hero h5.2.7.3297 build 20251024 and later
QuTS hero h5.3.1.3292 build 20251024 and later
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.8% · higher than 57% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
QT
Qts · Qnap
5.2.0.2737; 5.2.0.2744; 5.2.0.2782; 5.2.0.2802; 5.2.0.2823; 5.2.0.2851; +11 more · source: NVD
QH
Quts Hero · Qnap
h5.2.0.2737; h5.2.0.2782; h5.2.0.2789; h5.2.0.2802; h5.2.0.2823; h5.2.0.2851; +14 more · source: NVD
In the news
VulnerabilityMedium
ZDI-26-216: (Pwn2Own) QNAP TS-453E smbd domain_name Argument Injection Authentication Bypass Vulnerability
This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of QNAP TS-453E devices. Authentication is not required to exploit this vulnerability. The ZDI has assigned a CVSS rating of 6.3. The following CVEs are assigned: CVE-2025-62847.
Mar 17, 2026·Zero Day Initiative
VulnerabilityHigh
ZDI-26-200: (Pwn2Own) QNAP TS-453E nvrlog_event_add msg SQL Injection Remote Code Execution Vulnerability
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of QNAP TS-453E devices. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The ZDI has assigned a CVSS rating of 8.0. The following CVEs are assigned: CVE-2025-62847.
Mar 16, 2026·Zero Day Initiative
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-62847
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-62847
Vendor Advisory
https://www.qnap.com/en/security-advisory/qsa-25-45
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