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2 vulnerabilities found for NAS540 firmware by Zyxel
CVE-2023-27992 (GCVE-0-2023-27992)
Vulnerability from nvd – Published: 2023-06-19 11:42 – Updated: 2025-10-21 23:05Summary
The pre-authentication command injection vulnerability in the Zyxel NAS326 firmware versions prior to V5.21(AAZF.14)C0, NAS540 firmware versions prior to V5.21(AATB.11)C0, and NAS542 firmware versions prior to V5.21(ABAG.11)C0 could allow an unauthenticated attacker to execute some operating system (OS) commands remotely by sending a crafted HTTP request.
Severity
9.8 (Critical)
SSVC
Exploitation: active
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://www.zyxel.com/global/en/support/security-… | |
| https://www.cisa.gov/known-exploited-vulnerabilit… | government-resource |
Impacted products
3 products
| Vendor | Product | Version | |
|---|---|---|---|
| Zyxel | NAS326 firmware |
Affected:
< V5.21(AAZF.14)C0
|
|
| Zyxel | NAS540 firmware |
Affected:
< V5.21(AATB.11)C0
|
|
| Zyxel | NAS542 firmware |
Affected:
< V5.21(ABAG.11)C0
|
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CVE-2023-27992 (GCVE-0-2023-27992)
Vulnerability from cvelistv5 – Published: 2023-06-19 11:42 – Updated: 2025-10-21 23:05Summary
The pre-authentication command injection vulnerability in the Zyxel NAS326 firmware versions prior to V5.21(AAZF.14)C0, NAS540 firmware versions prior to V5.21(AATB.11)C0, and NAS542 firmware versions prior to V5.21(ABAG.11)C0 could allow an unauthenticated attacker to execute some operating system (OS) commands remotely by sending a crafted HTTP request.
Severity
9.8 (Critical)
SSVC
Exploitation: active
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://www.zyxel.com/global/en/support/security-… | |
| https://www.cisa.gov/known-exploited-vulnerabilit… | government-resource |
Impacted products
3 products
| Vendor | Product | Version | |
|---|---|---|---|
| Zyxel | NAS326 firmware |
Affected:
< V5.21(AAZF.14)C0
|
|
| Zyxel | NAS540 firmware |
Affected:
< V5.21(AATB.11)C0
|
|
| Zyxel | NAS542 firmware |
Affected:
< V5.21(ABAG.11)C0
|
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