Vulnerability Details : CVE-2023-35138
A command injection vulnerability in the “show_zysync_server_contents” function of the Zyxel NAS326 firmware version V5.21(AAZF.14)C0 and NAS542 firmware version V5.21(ABAG.11)C0 could allow an unauthenticated attacker to execute some operating system (OS) commands by sending a crafted HTTP POST request.
Products affected by CVE-2023-35138
- cpe:2.3:o:zyxel:nas326_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:zyxel:nas542_firmware:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2023-35138
0.04%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 15 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-35138
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
Zyxel Corporation |
CWE ids for CVE-2023-35138
-
The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.Assigned by:
- nvd@nist.gov (Primary)
- security@zyxel.com.tw (Secondary)
References for CVE-2023-35138
-
https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-authentication-bypass-and-command-injection-vulnerabilities-in-nas-products
Zyxel security advisory for authentication bypass and command injection vulnerabilities in NAS products | Zyxel NetworksPatch;Vendor Advisory
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