CVE-2020-35713 Exploited in the Wild — LINKSYS RE6500

Known Exploited Vulnerability Sources

Catalogues that list this CVE as a known exploited vulnerability.

Per-source evidence links for KEV attestations are available through the KEVIntel Pro API.

Source	Added
The Shadowserver First	2025-06-27 00:00 UTC

Scanner Artifacts

Scanner and exploit-framework references linked to this CVE.

Scanner	Reference	Detected
Nuclei	https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2020/CVE-2020-35713.yaml	Apr 25, 2025

Virtual Patch

Compensating WAF rules to help reduce exposure to this CVE. Rule content and deployable vendor exports are available with KEVIntel Enterprise.

Not available

KEVIntel does not currently have a virtual patch for this CVE. When available, KEVIntel virtual patches ship as deployable ModSecurity, Cloudflare, and AWS WAF rules.

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CVSS Scores

CVSS v3.1 9.8 Critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0 10.0 High

AV:N/AC:L/Au:N/C:C/I:C/A:C

Exploitation Status

Exploited in the wild

Recorded 2026-06-14 00:00:00 UTC · The Shadowserver

Proof of concept available

Recorded 2021-01-21 06:39:58 UTC · GitHub

Weaknesses (CWE)

CWE-78

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Scanner Integrations

Nuclei, Metasploit, and other scanner references for this CVE are listed on the Detection tab.

Potential Proof of Concepts

These PoCs are unverified and could contain malware. Use at your own risk.

Al1ex/CVE-2020-35713

github · Created 2021-01-21 06:39:58 UTC · 1 stars

CVE-2020-35713

Belkin Linksys RE6500 <1.0.012.001 - Remote Command Execution

nuclei · Created Unknown

Timeline

Key exploitation, disclosure, scanner coverage, and KEV attestation events for this CVE.

27 Jun 2025 00:00 UTC about 1 year ago

27 Jun 2025 00:00 UTC · about 1 year ago

Added to KEVIntel KEV Feed

High-confidence, third-party attested exploitation
25 Apr 2025 00:00 UTC over 1 year ago

25 Apr 2025 00:00 UTC · over 1 year ago

Nuclei template available

Scanner coverage available
21 Jan 2021 06:39 UTC over 5 years ago

21 Jan 2021 06:39 UTC · over 5 years ago

Public PoC available

Public proof-of-concept code published
26 Dec 2020 00:47 UTC over 5 years ago

26 Dec 2020 00:47 UTC · over 5 years ago

CVE published

Vulnerability disclosed publicly
26 Dec 2020 00:00 UTC over 5 years ago

26 Dec 2020 00:00 UTC · over 5 years ago

CVE ID reserved

Identifier reserved by the CNA

Automate This Intelligence with the Pro API

Confidence scoring, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.

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Pro API Example

GET /api/v2/pro/kevs/CVE-2020-35713

{
  "cve_id": "CVE-2020-35713",
  "title": "Belkin LINKSYS RE6500 devices before 1.0.012.001 allow remote attackers to ex...",
  "affected_vendor": "Belkin",
  "affected_product": "LINKSYS RE6500",
  "affected_versions": [
    { "vendor": "...", "product": "...", "status": "affected", "display_label": "..." }
  ],
  "confidence": "High",
  "cvss_score": 9.8,
  "epss_score": 0.32704,
  "exploit_status": {
    "exploited_in_the_wild": true,
    "active_exploitation_observed": false
  },
  "sensor_telemetry": { "...": "Pro API fields" },
  "proof_of_concepts": [ "..." ],
  "scanner_integrations": [ "..." ]
}

The free JSON API returns basic KEV fields only. Confidence, telemetry, and artifact enrichment require Pro API access.