Vulnerability · Published Apr 14, 2021 · Assigned by qnap

CVE-2021-28797Stack Buffer Overflow in Surveillance Station

Critical 9.8

In plain English

A critical-severity stack buffer overflow in Surveillance Station from QNAP Systems Inc.. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 5.9% (higher than 93% of all known vulnerabilities).

Severity (CVSS 3.1)9.8Critical

Exploit odds (30 days)5.9%top 6.7% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

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)

Affected products (as reported)

Vendor	Product	Versions
QNAP Systems Inc.	Surveillance Station	unspecified – before 5.1.5.4.3
QNAP Systems Inc.	Surveillance Station	unspecified – before 5.1.5.3.3

Weakness: CWE-121 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

https://www.qnap.com/en/security-advisory/qsa-21-07 x_refsource_MISC