Zyxel Communications Corp. NAS540

Name: Zyxel Communications Corp. NAS540
Brand: Zyxel Communications Corp.

productRU

A product tracked in the threat graph; the vulnerabilities below are known to affect it.

by severity

2critical1high0medium0low

updated 2026-10-27

vulnerabilities (4)

Related CVEs.

sort

ID	severity	EPSS	exploitable	patched	published	affected
CVE-2020-9054US	critical9.8OT critical	100.0% (100th)	KEV	no fix	2020-03-04	≤ 5.21(AATB.4)C0
CVE-2023-27992US	—OT critical	82.3% (100th)	KEV	no fix	2023-06-19	≤ 5.21(AATB.11)C0
CVE-2022-34747US	critical9.8	1.74% (78th)	—	no fix	2022-09-06	≤ 5.21(AATB.9)C0
CVE-2023-27988US	high7.2	1.36% (72nd)	—	no fix	2023-05-30	≤ 5.21(AATB.10)C0

The flaw types (CWEs) most of these CVEs share.

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')3 CVEs
CWE-134Use of Externally-Controlled Format String1 CVEs

Which sources assert this record, and when.

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