CVE-2026-120241

Ruijie RG-ES205GC Local Firmware Upgrade httpupg.cgi buffer overflow

Published Nov 1, 2026 CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title Ruijie RG-ES205GC Local Firmware Upgrade httpupg.cgi buffer overflow
First Time appeared Ruijie
Ruijie rg-es205gc
Ruijie rg-es206gc-p
Ruijie rg-es208gc
Ruijie rg-es210gc-lp
Ruijie rg-es210gs-p
Weaknesses CWE-119
CWE-120
CPEs cpe:2.3:a:ruijie:rg-es205gc:*:*:*:*:*:*:*:*
cpe:2.3:a:ruijie:rg-es206gc-p:*:*:*:*:*:*:*:*
cpe:2.3:a:ruijie:rg-es208gc:*:*:*:*:*:*:*:*
cpe:2.3:a:ruijie:rg-es210gc-lp:*:*:*:*:*:*:*:*
cpe:2.3:a:ruijie:rg-es210gs-p:*:*:*:*:*:*:*:*
Vendors & Products Ruijie
Ruijie rg-es205gc
Ruijie rg-es206gc-p
Ruijie rg-es208gc
Ruijie rg-es210gc-lp
Ruijie rg-es210gs-p
References
Metrics cvssV2_0

{'score': 7.8, 'vector': 'AV:N/AC:L/Au:N/C:N/I:N/A:C/E:POC/RL:ND/RC:UR'}

cvssV3_0

{'score': 7.5, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:X/RC:R'}

cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:X/RC:R'}

cvssV4_0

{'score': 8.7, 'vector': '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulDB
Published
Updated
Nov 5, 2026, 3:49 PM
Reserved
Oct 31, 2026, 8:20 PM
Status
Deferred
Published
Nov 1, 2026, 7:16 PM
Modified
Nov 5, 2026, 4:17 PM