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Critical severity9.8NVD Advisory· Published Apr 14, 2021· Updated Jun 17, 2026

CVE-2021-28797

CVE-2021-28797

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)

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

3
  • Qnap/Surveillance Station
    cpe:2.3:a:qnap:surveillance_station:*:*:*:*:*:*:*:*
    Range: <5.1.5.3.3
  • Qnap/Surveillance Station Prollm-fuzzy
    Range: up to 5.1.5.4.3 (ARM/x86 64bit OS), up to 5.1.5.3.3 (ARM/x86 32bit OS)
  • QNAP Systems Inc./Surveillance Stationv5
    Range: unspecified

Patches

Vulnerability mechanics

References

1

News mentions

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