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  4. CVE 2026 120241 ruijie rg es205gc local firmware upgrade
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Back to active CVEs
High · CVSS 8.7CVE-2026-120241

Ruijie RG-ES205GC Local Firmware Upgrade httpupg.cgi buffer overflowCVE-2026-120241

Answer in brief

CVE-2026-120241 records a High severity (CVSS 8.7) vulnerability in Ruijie RG-ES205GC Local Firmware Upgrade httpupg.cgi buffer overflow. The current sources do not mark it as known exploited. The current feed maps Ruijie/RG-ES205GC (generic), Ruijie/RG-ES206GC-P (generic), Ruijie/RG-ES208GC (generic), Ruijie/RG-ES210GC-LP (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Nov 1, 2026Updated Nov 1, 2026Source checked Nov 1, 2026First seen by HOL Nov 1, 2026Material review Nov 1, 2026
Upstream Advisory

Key facts

Risk
High · CVSS 8.7
Exploitation
Not marked as known exploited
Affected software
5 mapped packages or products
Fix availability
Not reported

Why this deserves its current priority

CVSS is 8.7. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Ruijie/RG-ES205GC (generic), Ruijie/RG-ES206GC-P (generic), Ruijie/RG-ES208GC (generic), Ruijie/RG-ES210GC-LP (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Ruijie/RG-ES205GCgenericESW_1.0(1)B1P48Not reported
Ruijie/RG-ES206GC-PgenericESW_1.0(1)B1P48Not reported
Ruijie/RG-ES208GCgenericESW_1.0(1)B1P48Not reported
Ruijie/RG-ES210GC-LPgenericESW_1.0(1)B1P48Not reported
Ruijie/RG-ES210GS-PgenericESW_1.0(1)B1P48Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Ruijie/RG-ES205GC, Ruijie/RG-ES206GC-P, Ruijie/RG-ES208GC.
  2. 2Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

  1. Published upstream

    Nov 1, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Nov 1, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Nov 1, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
  • Source referencevuldb.com
  • Source referencevuldb.com
  • Source referencevuldb.com
  • Source referencevuldb.com
Upstream source 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.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • Ruijie RG-ES205GC Cloud Management set_cloud_serverUrl.cgi cross site scriptingSame ruijie/rg-es205gc package
  • Hangzhou Xiongmai Technology P2PAPI.dll P2P SDK P2PAPI_Connect buffer overflowAlso CWE-120
  • Horizon DataSys Reboot Restore Standard Kernel Driver shield.sys sub_23908 memory corruptionAlso CWE-119

Record context

Vulnerability class
Buffer Overflow
EPSS
Not reported
CWE IDs
CWE-120, CWE-119
Source
CVE List V5
Source checked
Nov 1, 2026
References
5 linked sources
Open source record