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QNAP VioStor authorization issue vulnerability

🗓️ 29 Aug 2025 00:00:00Reported by China National Vulnerability Database of Information SecurityType 
cnnvd
 cnnvd
🔗 www.cnnvd.org.cn👁 22 Views

QNAP VioStor has an authorization flaw due to improper authentication that could compromise system security.

Related
Refs
ReporterTitlePublishedViews
Family
bdu_fstec
BDU FSTEC
Legacy VioStor NVR Auth Bypass
3 Sep 202500:00
–bdu_fstec
circl
Circl
CVE-2025-52856
30 Aug 202501:32
–circl
cve
CVE
CVE-2025-52856
29 Aug 202517:17
–cve
cvelist
Cvelist
CVE-2025-52856 VioStor
29 Aug 202517:17
–cvelist
euvd
EUVD
EUVD-2025-26252
3 Oct 202520:07
–euvd
nvd
NVD
CVE-2025-52856
29 Aug 202518:15
–nvd
osv_cve
osv_cve
CVE-2025-52856
29 Aug 202518:15
–osv_cve
ptsecurity
Positive Technologies
PT-2025-35293
29 Aug 202500:00
–ptsecurity
rapid7
Rapid7 Vulnerability Database (full)
CVE-2025-52856: Improper Authentication
29 Aug 202500:00
–rapid7
redhatcve
RedhatCVE
CVE-2025-52856
31 Aug 202518:11
–redhatcve
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25 May 2026 00:00Current
8.6High risk
Vulners AI Score8.6
CVSS 3.19.8
CVSS 49.3
EPSS0.00656
SSVC
22