Description
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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Ruijie | RG-ES205GC | ESW_1.0(1)B1P48 | — |
| Ruijie | RG-ES206GC-P | ESW_1.0(1)B1P48 | — |
| Ruijie | RG-ES208GC | ESW_1.0(1)B1P48 | — |
| Ruijie | RG-ES210GC-LP | ESW_1.0(1)B1P48 | — |
| Ruijie | RG-ES210GS-P | ESW_1.0(1)B1P48 | — |
References
- VDB-429600 | Ruijie RG-ES205GC Local Firmware Upgrade httpupg.cgi buffer overflow vdb-entry
- VDB-429600 | CTI Indicators (IOB, IOC, IOA) signature permissions-required
- CVE-2026-120241 | CVE Analysis and Report third-party-advisory
- Submit #1016041 | Ruijie Networks Co., Ltd. RG-ES205GC, RG-ES206GC-P, RG-ES208GC, RG-ES210GC-LP, RG-ES210GS-P (sharing the same ESW firmware; NIS2100 series may also be aff ESW_1.0(1)B1P48, Release(12211919) Buffer Overflow third-party-advisory
- https://github.com/byseeker/Ruijie-RG-ES-Series-Switches_PreAuth_Boundary_Overflow_DoS exploit