CVE-2020-2501
moderate-risk
Published 2021-02-17
A stack-based buffer overflow vulnerability has been reported to affect QNAP NAS devices running Surveillance Station. If exploited, this vulnerability allows attackers to execute arbitrary code. QNAP have already fixed this vulnerability in the following versions: Surveillance Station 5.1.5.4.3 (and later) for ARM CPU NAS (64bit OS) and x86 CPU NAS (64bit OS) Surveillance Station 5.1.5.3.3 (and later) for ARM CPU NAS (32bit OS) and x86 CPU NAS (32bit OS)
Do I need to act?
~
3.8% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
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 (1)
Surveillance Station
Affected Vendors
References (2)
Vendor Advisory
https://www.qnap.com/en/security-advisory/qsa-21-07
Vendor Advisory
https://www.qnap.com/en/security-advisory/qsa-21-07
44
/ 100
moderate-risk
Severity
32/34 · Critical
Exploitability
7/34 · Low
Exposure
5/34 · Minimal