high8.7
CVE-2026-120241
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.
Impact
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 versions |
|---|---|---|
| Ruijie | RG-ES205GC | Version ESW_1.0(1)B1P48 |
| Ruijie | RG-ES206GC-P | Version ESW_1.0(1)B1P48 |
| Ruijie | RG-ES208GC | Version ESW_1.0(1)B1P48 |
| Ruijie | RG-ES210GC-LP | Version ESW_1.0(1)B1P48 |
| Ruijie | RG-ES210GS-P | Version ESW_1.0(1)B1P48 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://vuldb.com/vuln/429600
- https://vuldb.com/vuln/429600/cti
- https://vuldb.com/cve/CVE-2026-120241
- https://vuldb.com/submit/1016041
- https://github.com/byseeker/Ruijie-RG-ES-Series-Switches_PreAuth_Boundary_Overflow_DoS
- https://github.com/advisories/GHSA-6j24-g64r-jw54
- https://nvd.nist.gov/vuln/detail/CVE-2026-120241