CVE-2023-27992
Zyxel Multiple NAS Devices Command Injection Vulnerability
Severity Score
9.8
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
Yes
*KEV
Decision
-
*SSVC
Descriptions
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.
Multiple Zyxel network-attached storage (NAS) devices contain a pre-authentication command injection vulnerability that could allow an unauthenticated attacker to execute commands remotely via a crafted HTTP request.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2023-03-09 CVE Reserved
- 2023-06-19 CVE Published
- 2023-06-23 Exploited in Wild
- 2023-07-14 KEV Due Date
- 2024-08-02 CVE Updated
- 2024-09-23 EPSS Updated
- ---------- First Exploit
CWE
- CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CAPEC
References (1)
| URL | Tag | Source |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-pre-authentication-command-injection-vulnerability-in-nas-products | 2023-06-27 |
| URL | Date | SRC |
|---|
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Zyxel Search vendor "Zyxel" | Nas326 Firmware Search vendor "Zyxel" for product "Nas326 Firmware" | <= 5.21\(aazf.13\)c0 Search vendor "Zyxel" for product "Nas326 Firmware" and version " <= 5.21\(aazf.13\)c0" | - |
Affected
| in | Zyxel Search vendor "Zyxel" | Nas326 Search vendor "Zyxel" for product "Nas326" | - | - |
Safe
|
| Zyxel Search vendor "Zyxel" | Nas540 Firmware Search vendor "Zyxel" for product "Nas540 Firmware" | <= 5.21\(aatb.10\)c0 Search vendor "Zyxel" for product "Nas540 Firmware" and version " <= 5.21\(aatb.10\)c0" | - |
Affected
| in | Zyxel Search vendor "Zyxel" | Nas540 Search vendor "Zyxel" for product "Nas540" | - | - |
Safe
|
| Zyxel Search vendor "Zyxel" | Nas542 Firmware Search vendor "Zyxel" for product "Nas542 Firmware" | <= 5.21\(abag.10\)c0 Search vendor "Zyxel" for product "Nas542 Firmware" and version " <= 5.21\(abag.10\)c0" | - |
Affected
| in | Zyxel Search vendor "Zyxel" | Nas542 Search vendor "Zyxel" for product "Nas542" | - | - |
Safe
|