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Medium severity4.4NVD Advisory· Published Nov 28, 2023· Updated Jun 17, 2026

CVE-2023-4397

CVE-2023-4397

Description

A buffer overflow vulnerability in the Zyxel ATP series firmware version 5.37, USG FLEX series firmware version 5.37, USG FLEX 50(W) series firmware version 5.37, and USG20(W)-VPN series firmware version 5.37, could allow an authenticated local attacker with administrator privileges to cause denial-of-service (DoS) conditions by executing the CLI command with crafted strings on an affected device.

AI Insight

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

Affected products

8
  • Zyxel/Zld
    cpe:2.3:o:zyxel:zld:5.37:*:*:*:*:*:*:*
  • Zyxel/ATP seriesllm-fuzzy2 versions
    5.37+ 1 more
    • (no CPE)range: 5.37
    • (no CPE)range: 5.37
  • Zyxel/USG FLEX seriesllm-fuzzy3 versions
    5.37+ 2 more
    • (no CPE)range: 5.37
    • (no CPE)range: 5.37
    • (no CPE)range: 5.37
  • Zyxel/USG20(W)-VPN seriesllm-fuzzy2 versions
    5.37+ 1 more
    • (no CPE)range: 5.37
    • (no CPE)range: 5.37

Patches

Vulnerability mechanics

References

1

News mentions

0

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