CVE-2020-27867: This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R…
- Is it exploited?
Reported, not confirmed by CISA. VulnCheck KEV lists it as exploited in the wild. CISA has not added it to its Known Exploited Vulnerabilities catalog as of .
VulnCheck KEV lists it since . It cites 3 public reports, the first from . VulnCheck's own honeypots also recorded exploitation attempts.
- How likely is exploitation in the next 30 days?
- 2.2%
EPSS score, percentile 82.8 of all scored records. A probability estimated by FIRST, not a report of exploitation.
- How severe?
- 6.8 Medium
CVSS v3.0 base score, given by the CNA
- What should I do?
CISA has set no required action, because the vulnerability is not in KEV.
The CVE record links no vendor advisory, patch or mitigation.
- Which versions are affected?
Affected
- firmware version 1.2.0.62_1.0.1
Source: CISA KEV 2026.10.29, as of ; VulnCheck KEV, as of ; FIRST EPSS, as of ; CVE List, as of . About the data.
Description
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R6020, R6080, R6120, R6220, R6260, R6700v2, R6800, R6900v2, R7450, JNR3210, WNR2020, Nighthawk AC2100, and Nighthawk AC2400 routers. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the mini_httpd service, which listens on TCP port 80 by default. When parsing the funjsq_access_token parameter, the process does not properly validate a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-11653.
Source: CVE List, as of . About the data.
What to do
Advisories and patches
The CVE record links no vendor advisory, patch or mitigation.
This summary is based on the CVE record as of . Check the vendor's advisory before you act: affected versions and fixes can change.
Affected products and versions
Versions by product, as listed in the CVE record (1 product)
| Status | Versions |
|---|---|
| Affected | firmware version 1.2.0.62_1.0.1 |
Source: CVE List, as of . About the data.
Weakness
CWE-77
- CWE-77: Command Injection
CWE and CAPEC are maintained by MITRE; the entries are those named in the CVE record.
Timeline
| Date | Event |
|---|---|
| CVE record published | |
| CVE record last updated |
References
2
Known exploited NETGEAR vulnerabilities
- CVE-2017-5521: NETGEAR Multiple Devices Exposure of Sensitive Information Vulnerability
- CVE-2017-6862: NETGEAR Multiple Devices Buffer Overflow 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