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CVE-2025-56752

CRITICALCVSS 9.4/10EPSS 0.50%

Last modified

CVE-2025-56752 is a critical-severity vulnerability rated 9.4/10 on the CVSS scale. 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.. EPSS estimates a 0.50% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1
9.4/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:H

EPSS Probability
0.50%

38.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
RuijieRg-Es228gs-P Firmwareesw_1.0\(1\)b1p27
RuijieRg-Es228gs-P Firmwareesw_1.0\(1\)b1p35
RuijieRg-Es228gs-P Firmwareesw_1.0\(1\)b1p39
RuijieRg-Es209gc-P Firmwareesw_1.0\(1\)b1p27
RuijieRg-Es209gc-P Firmwareesw_1.0\(1\)b1p35
RuijieRg-Es209gc-P Firmwareesw_1.0\(1\)b1p39
RuijieRg-Es205gc-P Firmwareesw_1.0\(1\)b1p27
RuijieRg-Es205gc-P Firmwareesw_1.0\(1\)b1p35
RuijieRg-Es205gc-P Firmwareesw_1.0\(1\)b1p39
RuijieRg-Es205gc Firmwareesw_1.0\(1\)b1p27
RuijieRg-Es205gc Firmwareesw_1.0\(1\)b1p35
RuijieRg-Es205gc Firmwareesw_1.0\(1\)b1p39
RuijieRg-Es208gc Firmwareesw_1.0\(1\)b1p27
RuijieRg-Es208gc Firmwareesw_1.0\(1\)b1p35
RuijieRg-Es208gc Firmwareesw_1.0\(1\)b1p39
RuijieRg-Es206gs-P Firmwareesw_1.0\(1\)b1p27
RuijieRg-Es206gs-P Firmwareesw_1.0\(1\)b1p35
RuijieRg-Es206gs-P Firmwareesw_1.0\(1\)b1p39
RuijieRg-Es210gs-P Firmwareesw_1.0\(1\)b1p27
RuijieRg-Es210gs-P Firmwareesw_1.0\(1\)b1p35
RuijieRg-Es210gs-P Firmwareesw_1.0\(1\)b1p39
RuijieRg-Es218gc-P Firmwareesw_1.0\(1\)b1p27
RuijieRg-Es218gc-P Firmwareesw_1.0\(1\)b1p35
RuijieRg-Es226gc-P Firmwareesw_1.0\(1\)b1p27
RuijieRg-Es226gc-P Firmwareesw_1.0\(1\)b1p35
RuijieRg-Es206gc-P Firmwareesw_1.0\(1\)b1p27
RuijieRg-Es206gc-P Firmwareesw_1.0\(1\)b1p35
RuijieRg-Es216gc Firmwareesw_1.0\(1\)b1p27
RuijieRg-Es224gc Firmwareesw_1.0\(1\)b1p27
RuijieRg-Es210gc-Lp Firmwareesw_1.0\(1\)b1p27
RuijieRg-Es206mg-P Firmwareesw_1.0\(1\)b1p42_release\(12142711\)
RuijieRg-Es209mg-P Firmwareesw_1.0\(1\)b1p42_release\(12142711\)
RuijieRg-Nis2100-8gt2sfp-Hp Firmwareesw_1.0\(1\)b1p39
RuijieRg-Nis2100-4gt2sfp-Hp Firmwareesw_1.0\(1\)b1p39
RuijieRg-Es216gc-V2 Firmwareesw_1.0\(1\)b1p27
RuijieRg-Es216gc-V2 Firmwareesw_1.0\(1\)b1p35
RuijieRg-Es216gc-V2 Firmwareesw_1.0\(1\)b1p39
RuijieRg-Es224gc-V2 Firmwareesw_1.0\(1\)b1p27
RuijieRg-Es224gc-V2 Firmwareesw_1.0\(1\)b1p35
RuijieRg-Es224gc-V2 Firmwareesw_1.0\(1\)b1p39
RuijieRg-Es220gs-P Firmwareesw_1.0\(1\)b1p27
RuijieRg-Es220gs-P Firmwareesw_1.0\(1\)b1p35
RuijieRg-Es220gs-P Firmwareesw_1.0\(1\)b1p39

References

Timeline

Published
Last Modified
Status
Analyzed

Frequently Asked Questions

What is CVE-2025-56752?
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.
How severe is CVE-2025-56752?
CVE-2025-56752 has a CVSS score of 9.4/10 (CRITICAL severity). The EPSS model estimates a 0.50% probability of exploitation in the next 30 days.
How do I fix CVE-2025-56752?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-56752?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST