CVE-2017-6862: NETGEAR Multiple Devices Buffer Overflow Vulnerability
- Is it exploited?
Yes. CISA added it to the Known Exploited Vulnerabilities catalog on 8 Jun 2022, 1,839 days after the CVE record was published.
- How likely is exploitation in the next 30 days?
- 45.7%
EPSS score, percentile 98.8 of all scored records
- How severe?
- 9.8 Critical
CVSS v3.1 base score, from CISA's enrichment of the record
- What should I do?
CISA deadline 22 Jun 2022. Apply updates per vendor instructions.
The CVE record links no vendor advisory, patch or mitigation.
- Which versions are affected?
Affected
- NETGEAR All versions prior to WNR2000v3 1.1.2.14, WNR2000v4 1.0.0.66, WNR2000v5…
Source: CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.28, as of 28 Oct 2026; FIRST Exploit Prediction Scoring System (EPSS), v2026.06.15, as of 28 Oct 2026; CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.
What to do
Required action, set by CISA
Apply updates per vendor instructions.
CISA due date for this action: 22 June 2022.
Advisories and patches
The CVE record links no vendor advisory, patch or mitigation.
Linked from CISA's catalog entry
Affected products and versions
As listed in the CVE record.
| Status | Versions |
|---|---|
| Affected | NETGEAR All versions prior to WNR2000v3 1.1.2.14, WNR2000v4 1.0.0.66, WNR2000v5… |
Source: CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.
About this vulnerability
Multiple NETGEAR devices contain a buffer overflow vulnerability that allows for authentication bypass and remote code execution.
Summary: CISA's KEV catalog, as of 28 Oct 2026.
- CISA added CVE-2017-6862 to its Known Exploited Vulnerabilities (KEV) catalog on 8 Jun 2022.
- CISA's ransomware flag for this entry is "Unknown": no evidence of ransomware use in the catalog, which is not proof of none.
- The due date CISA sets for the required action is 22 Jun 2022.
- The CVE record was published on 26 May 2017, 1,839 days before it was added to KEV.
- The CVE record carries a CVSS v3.1 base score of 9.8 (Critical), taken from CISA's enrichment of the record.
- FIRST's EPSS model puts the probability of exploitation in the next 30 days at 45.7% (percentile 98.8), as of 28 Oct 2026.
- CISA's SSVC assessment in the CVE record: exploitation active, automatable yes, technical impact total.
Source: CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.28, as of 28 Oct 2026; CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026; FIRST Exploit Prediction Scoring System (EPSS), v2026.06.15, as of 28 Oct 2026. About the data.
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.
Source: CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.
Weakness
CWE and CAPEC are maintained by MITRE; the entries are those named in the CVE record and the KEV entry.
Timeline
| Date | Event |
|---|---|
| 26 May 2017 | CVE record published |
| 8 Jun 2022 | Added to CISA KEV |
| 22 Jun 2022 | CISA due date for the required action |
| 21 Oct 2025 | CVE record last updated |
References
More exploited NETGEAR vulnerabilities
- CVE-2017-5521: NETGEAR Multiple Devices Exposure of Sensitive Information Vulnerability
- CVE-2016-10174: NETGEAR WNR2000v5 Router Buffer Overflow Vulnerability
- CVE-2016-1555: NETGEAR Multiple WAP Devices Command Injection Vulnerability
- CVE-2017-6334: NETGEAR DGN2200 Devices OS Command Injection Vulnerability
- CVE-2016-6277: NETGEAR Multiple Routers Remote Code Execution Vulnerability
- CVE-2017-6077: NETGEAR DGN2200 Remote Code Execution Vulnerability