CVE-2026-120241: high-severity vulnerability in Ruijie RG-ES205GC
Ruijie RG-ES205GC Local Firmware Upgrade httpupg.cgi buffer overflow
Published · Updated
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41Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 8.7epss 0.6%
A vulnerability was identified in Ruijie RG-ES205GC, RG-ES206GC-P, RG-ES208GC, RG-ES210GC-LP and RG-ES210GS-P ESW_1.0(1)B1P48. Impacted is an unknown function of the file httpupg.cgi of the component Local Firmware Upgrade Interface. The manipulation leads to buffer overflow. It is possible to initiate the attack remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P
Affected products
Ruijie · RG-ES205GCRuijie · RG-ES206GC-PRuijie · RG-ES208GCRuijie · RG-ES210GC-LPRuijie · RG-ES210GS-Ppublic PoCs found — 1
cve_referencegithub.com/byseeker/Ruijie-RG-ES-Series-Switches_PreAuth_Boundary_Overflow_DoSunverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
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