CVE-2021-34345

high-risk
Published 2021-09-10

A stack buffer overflow vulnerability has been reported to affect QNAP device running NVR Storage Expansion. If exploited, this vulnerability allows attackers to execute arbitrary code. We have already fixed this vulnerability in the following versions of NVR Storage Expansion: NVR Storage Expansion 1.0.6 ( 2021/08/03 ) and later

Do I need to act?

~
1.2% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.8/10 Critical
NETWORK / LOW complexity

Affected Products (14)

Ej1600 Firmware
Tl-R1620Sdc Firmware
Tl-R1620Sep-Rp Firmware
Tl-R1220Sep-Rp Firmware
Tl-D1600S Firmware
Tl-D800S Firmware
Tl-D400S Firmware
Tl-R1200S-Rp Firmware
Tl-R400S Firmware
Tl-R1200C-Rp Firmware
Tl-D800C Firmware
Tr-004 Firmware
Tr-002 Firmware
Tr-004U Firmware

Affected Vendors

Qnap

References (2)

Vendor Advisory https://www.qnap.com/en/security-advisory/qsa-21-36
Vendor Advisory https://www.qnap.com/en/security-advisory/qsa-21-36
54
/ 100
high-risk
Severity 32/34 · Critical
Exploitability 4/34 · Minimal
Exposure 18/34 · Moderate