CVE-2025-56752

high-risk
Published 2025-09-03

A vulnerability in the Ruijie RG-ES series switch firmware ESW_1.0(1)B1P39 enables remote attackers to fully bypass authentication mechanisms, providing them with unrestricted access to alter administrative settings and potentially seize control of affected devices via crafted HTTP POST request to /user.cgi.

Do I need to act?

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0.29% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.4/10 Critical
NETWORK / LOW complexity

Affected Products (20)

Rg-Es228Gs-P Firmware
Rg-Es228Gs-P Firmware
Rg-Es228Gs-P Firmware
Rg-Es209Gc-P Firmware
Rg-Es209Gc-P Firmware
Rg-Es209Gc-P Firmware
Rg-Es205Gc-P Firmware
Rg-Es205Gc-P Firmware
Rg-Es205Gc-P Firmware
Rg-Es205Gc Firmware
Rg-Es205Gc Firmware
Rg-Es205Gc Firmware
Rg-Es208Gc Firmware
Rg-Es208Gc Firmware
Rg-Es208Gc Firmware
Rg-Es206Gs-P Firmware
Rg-Es206Gs-P Firmware
Rg-Es206Gs-P Firmware
Rg-Es210Gs-P Firmware
Rg-Es210Gs-P Firmware

Affected Vendors

Ruijie

References (1)

Third Party Advisory https://github.com/TNCX-byte/Vulnerability_Research/blob/main/CVE-2025-56752/REA...
57
/ 100
high-risk
Severity 31/34 · Critical
Exploitability 1/34 · Minimal
Exposure 25/34 · High