// For flags

CVE-2023-28770

Zyxel Chained Remote Code Execution

Severity Score

7.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Attend
*SSVC
Descriptions

The sensitive information exposure vulnerability in the CGI “Export_Log” and the binary “zcmd” in Zyxel DX5401-B0 firmware versions prior to V5.17(ABYO.1)C0 could allow a remote unauthenticated attacker to read the system files and to retrieve the password of the supervisor from the encrypted file.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
Complete
Integrity
None
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:Attend
Exploitation
Poc
Automatable
Yes
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2023-03-23 CVE Reserved
  • 2023-04-27 CVE Published
  • 2023-05-10 First Exploit
  • 2025-01-31 CVE Updated
  • 2025-04-15 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
  • CWE-203: Observable Discrepancy
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Zyxel
Search vendor "Zyxel"
 Dx5401-b0 Firmware
Search vendor "Zyxel" for product "Dx5401-b0 Firmware"
 < 5.17\(abyo.1\)c0
Search vendor "Zyxel" for product "Dx5401-b0 Firmware" and version " < 5.17\(abyo.1\)c0"
-
Affected
in Zyxel
Search vendor "Zyxel"
 Dx5401-b0
Search vendor "Zyxel" for product "Dx5401-b0"
--
Safe