Zyxel NAS326 firmware

Name: Zyxel NAS326 firmware
Brand: Zyxel

productEU

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

critical

by severity

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updated 2026-10-28

vulnerabilities (15)

Related CVEs.

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ID	severity	EPSS	exploitable	patched	published	affected
CVE-2023-27992US	—OT critical	82.3% (100th)	KEV	no fix	2023-06-19	≤ < V5.21(AAZF.14)C0
CVE-2024-29972US	—	90.3% (100th)	Exploit	no fix	2024-06-04	≤ < V5.21(AAZF.17)C0
CVE-2024-29973US	—	86.2% (100th)	Exploit	no fix	2024-06-04	≤ < V5.21(AAZF.17)C0
CVE-2023-37928US	—	60.2% (99th)	—	no fix	2023-11-30	≤ V5.21(AAZF.14)C0
CVE-2023-4473US	—	41.3% (99th)	—	no fix	2023-11-30	≤ V5.21(AAZF.14)C0
CVE-2023-35138US	—	40.0% (99th)	—	no fix	2023-11-30	≤ V5.21(AAZF.14)C0
CVE-2023-4474US	—	29.7% (98th)	—	no fix	2023-11-30	≤ V5.21(AAZF.14)C0
CVE-2023-5372US	—	28.5% (98th)	—	no fix	2024-01-30	≤ ≤ V5.21(AAZF.15)C0
CVE-2024-29974US	—	22.8% (98th)	—	no fix	2024-06-04	≤ < V5.21(AAZF.17)C0
CVE-2024-29976US	—	8.95% (95th)	—	no fix	2024-06-04	≤ < V5.21(AAZF.17)C0
CVE-2024-6342US	—	2.06% (81st)	—	no fix	2024-09-10	≤ ≤ V5.21(AAZF.18)C0
CVE-2023-37927US	—	1.75% (78th)	—	no fix	2023-11-30	≤ V5.21(AAZF.14)C0
CVE-2023-27988US	high7.2	1.36% (72nd)	—	no fix	2023-05-30	≤ < V5.21(AAZF.13)C0
CVE-2023-35137US	high7.5	0.87% (59th)	—	no fix	2023-11-30	≤ V5.21(AAZF.14)C0
CVE-2024-29975US	—	0.47% (40th)	—	no fix	2024-06-04	≤ < V5.21(AAZF.17)C0

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

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')11 CVEs
CWE-269Improper Privilege Management2 CVEs
CWE-287Improper Authentication1 CVEs
CWE-434Unrestricted Upload of File with Dangerous Type1 CVEs

Which sources assert this record, and when.

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