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ExploitedIn CISA KEVFix available

CVE-2017-6862

Exploitation confirmed. First attested on 2022-06-08 by CISA-ADP, CISA KEV, GCVE · kevintel.

  • Published2017-05-26
  • Fixed in1.1.2.14 · 1.0.0.66 · 1.0.0.42
  • WeaknessCWE-120

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

NETGEAR WNR2000v3 devices before 1.1.2.14, WNR2000v4 devices before 1.0.0.66, and WNR2000v5 devices before 1.0.0.42 allow authentication bypass and remote code execution via a buffer overflow that uses a parameter in the administration webapp. The NETGEAR ID is PSV-2016-0261.

Timeline

dates in UTC
  1. 2017-05-2620:29CVE publishedNVD
  2. 2022-06-08Added to the CISA KEV catalogCISA KEV
  3. 2022-06-08Listed as exploited by GCVEGCVE
  4. 2022-06-08Exploitation first reportedCISA KEV
  5. 2025-02-0713:42SSVC exploitation set to activeCISA-ADP
  6. 2026-10-2319:23EPSS crossed 10 %FIRST EPSS

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2017-6862?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2017-6862?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Netgear wnr2000 firmwareversion to verify
BranchAffectedFixed in
1.1< 1.1.2.141.1.2.14
1.0< 1.0.0.661.0.0.66
1.0< 1.0.0.421.0.0.42

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

  1. Update Netgear wnr2000 firmware to 1.1.2.14 · 1.0.0.66 · 1.0.0.42
  2. CISA’s required action: Apply updates per vendor instructions.due 2022-06-22

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub

CISA Known Exploited Vulnerability

Date Added
2022-06-08
Patch Due Date
2022-06-22
Ransomware Use
Unknown
Required Action
Apply updates per vendor instructions.

Sources

  • CISA KEVKEV entry2022-06-08
  • GCVEexploitation2022-06-08
  • CISA-ADPSSVC decisionactive2025-02-07
  • OpenCVESSVC decisionactive—
  • CISA-ADPCVSS 3.19.82025-02-07
  • NVDCVSS 3.19.8read 2026-10-23
  • NVDCVSS 2.07.5read 2026-10-23
  • CISA-ADPweakness (CWE)CWE-1202025-02-07
  • NVDweakness (CWE)CWE-120read 2026-10-23
  • FIRST EPSSEPSS score45.7 %read 2026-10-23

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2017-05-26
Last Modified
2026-06-17
NVD status
Analyzed

Frequently asked questions

What is CVE-2017-6862?

NETGEAR WNR2000v3 devices before 1.1.2.14, WNR2000v4 devices before 1.0.0.66, and WNR2000v5 devices before 1.0.0.42 allow authentication bypass and remote code execution via a buffer overflow that uses a parameter in the administration webapp. The NETGEAR ID is PSV-2016-0261.

Is CVE-2017-6862 actively exploited?

Yes. CVE-2017-6862 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 2022-06-22.

What is the CVSS score for CVE-2017-6862?

CVE-2017-6862 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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