Medium severity · published Jun 6, 2025
CVE-2024-56805
A buffer overflow vulnerability has been reported to affect several QNAP operating system versions
5.4
CVSS
0.4%
EPSS
No
On KEV
Description
A buffer overflow vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow remote attackers who have gained user access to modify memory or crash processes.
We have already fixed the vulnerability in the following versions:
QTS 5.2.4.3079 build 20250321 and later
QuTS hero h5.2.4.3079 build 20250321 and later
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
Low
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 37% 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; +5 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; +6 more · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-56805
CVE.org
https://www.cve.org/CVERecord?id=CVE-2024-56805
Vendor Advisory
https://www.qnap.com/en/security-advisory/qsa-25-12
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