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TI-2020-16935 Aliases CVE-2020-27867GHSA-9xcx-66r3-hp2h

Command injection in NETGEAR Multiple Routers

Priority LOW 35CWE-77Published · Updated

Key facts

Attack vector
Adjacent network
Privileges required
High
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-77.

Summary

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.

Why it matters now

EPSS 0.02331 83rd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
NETGEARMultiple Routersfirmware version 1.2.0.62_1.0.1—No fix listedCNA
  • Multiple Routers VendorNETGEAR Affected firmware version 1.2.0.62_1.0.1 Fixed in — No fix listed CNA

CPE configurations NVD · 38

CPEVersionsRoleVendor
cpe:2.3:o:netgear:ac2100_firmware:*:*:*:*:*:*:*:*before 1.2.0.76VulnerableNETGEAR
cpe:2.3:h:netgear:ac2100:-:*:*:*:*:*:*:*not specified by NVDRunning onNETGEAR
cpe:2.3:o:netgear:ac2400_firmware:*:*:*:*:*:*:*:*before 1.2.0.76VulnerableNETGEAR
cpe:2.3:h:netgear:ac2400:-:*:*:*:*:*:*:*not specified by NVDRunning onNETGEAR
cpe:2.3:o:netgear:ac2600_firmware:*:*:*:*:*:*:*:*before 1.2.0.76VulnerableNETGEAR
cpe:2.3:h:netgear:ac2600:-:*:*:*:*:*:*:*not specified by NVDRunning onNETGEAR
cpe:2.3:o:netgear:r6700_firmware:*:*:*:*:*:*:*:*before 1.2.0.76VulnerableNETGEAR
cpe:2.3:h:netgear:r6700:v2:*:*:*:*:*:*:*v2Running onNETGEAR
cpe:2.3:o:netgear:r6800_firmware:*:*:*:*:*:*:*:*before 1.2.0.76VulnerableNETGEAR
cpe:2.3:h:netgear:r6800:-:*:*:*:*:*:*:*not specified by NVDRunning onNETGEAR
  • cpe:2.3:o:netgear:ac2100_firmware:*:*:*:*:*:*:*:* Versions before 1.2.0.76 Vulnerable ·NETGEAR
  • cpe:2.3:h:netgear:ac2100:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
  • cpe:2.3:o:netgear:ac2400_firmware:*:*:*:*:*:*:*:* Versions before 1.2.0.76 Vulnerable ·NETGEAR
  • cpe:2.3:h:netgear:ac2400:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
  • cpe:2.3:o:netgear:ac2600_firmware:*:*:*:*:*:*:*:* Versions before 1.2.0.76 Vulnerable ·NETGEAR
  • cpe:2.3:h:netgear:ac2600:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
  • cpe:2.3:o:netgear:r6700_firmware:*:*:*:*:*:*:*:* Versions before 1.2.0.76 Vulnerable ·NETGEAR
  • cpe:2.3:h:netgear:r6700:v2:*:*:*:*:*:*:* Versions v2 Running on ·NETGEAR
  • cpe:2.3:o:netgear:r6800_firmware:*:*:*:*:*:*:*:* Versions before 1.2.0.76 Vulnerable ·NETGEAR
  • cpe:2.3:h:netgear:r6800:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
Show 28 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:netgear:r6900_firmware:*:*:*:*:*:*:*:*before 1.2.0.76VulnerableNETGEAR
cpe:2.3:h:netgear:r6900:v2:*:*:*:*:*:*:*v2Running onNETGEAR
cpe:2.3:o:netgear:r7200_firmware:*:*:*:*:*:*:*:*before 1.2.0.76VulnerableNETGEAR
cpe:2.3:h:netgear:r7200:-:*:*:*:*:*:*:*not specified by NVDRunning onNETGEAR
cpe:2.3:o:netgear:r7350_firmware:*:*:*:*:*:*:*:*before 1.2.0.76VulnerableNETGEAR
cpe:2.3:h:netgear:r7350:-:*:*:*:*:*:*:*not specified by NVDRunning onNETGEAR
cpe:2.3:o:netgear:r7400_firmware:*:*:*:*:*:*:*:*before 1.2.0.76VulnerableNETGEAR
cpe:2.3:h:netgear:r7400:-:*:*:*:*:*:*:*not specified by NVDRunning onNETGEAR
cpe:2.3:o:netgear:r7450_firmware:*:*:*:*:*:*:*:*before 1.2.0.76VulnerableNETGEAR
cpe:2.3:h:netgear:r7450:-:*:*:*:*:*:*:*not specified by NVDRunning onNETGEAR
cpe:2.3:o:netgear:r6220_firmware:*:*:*:*:*:*:*:*before 1.1.0.104VulnerableNETGEAR
cpe:2.3:h:netgear:r6220:-:*:*:*:*:*:*:*not specified by NVDRunning onNETGEAR
cpe:2.3:o:netgear:r6230_firmware:*:*:*:*:*:*:*:*before 1.1.0.104VulnerableNETGEAR
cpe:2.3:h:netgear:r6230:-:*:*:*:*:*:*:*not specified by NVDRunning onNETGEAR
cpe:2.3:o:netgear:r6260_firmware:*:*:*:*:*:*:*:*before 1.1.0.78VulnerableNETGEAR
cpe:2.3:h:netgear:r6260:-:*:*:*:*:*:*:*not specified by NVDRunning onNETGEAR
cpe:2.3:o:netgear:r6330_firmware:*:*:*:*:*:*:*:*before 1.1.0.78VulnerableNETGEAR
cpe:2.3:h:netgear:r6330:-:*:*:*:*:*:*:*not specified by NVDRunning onNETGEAR
cpe:2.3:o:netgear:r6350_firmware:*:*:*:*:*:*:*:*before 1.1.0.78VulnerableNETGEAR
cpe:2.3:h:netgear:r6350:-:*:*:*:*:*:*:*not specified by NVDRunning onNETGEAR
cpe:2.3:o:netgear:r6850_firmware:*:*:*:*:*:*:*:*before 1.1.0.78VulnerableNETGEAR
cpe:2.3:h:netgear:r6850:-:*:*:*:*:*:*:*not specified by NVDRunning onNETGEAR
cpe:2.3:o:netgear:r6120_firmware:*:*:*:*:*:*:*:*before 1.0.0.76VulnerableNETGEAR
cpe:2.3:h:netgear:r6120:-:*:*:*:*:*:*:*not specified by NVDRunning onNETGEAR
cpe:2.3:o:netgear:r6020_firmware:*:*:*:*:*:*:*:*before 1.0.0.48VulnerableNETGEAR
cpe:2.3:h:netgear:r6020:-:*:*:*:*:*:*:*not specified by NVDRunning onNETGEAR
cpe:2.3:o:netgear:r6080_firmware:*:*:*:*:*:*:*:*before 1.0.0.48VulnerableNETGEAR
cpe:2.3:h:netgear:r6080:-:*:*:*:*:*:*:*not specified by NVDRunning onNETGEAR
  • cpe:2.3:o:netgear:r6900_firmware:*:*:*:*:*:*:*:* Versions before 1.2.0.76 Vulnerable ·NETGEAR
  • cpe:2.3:h:netgear:r6900:v2:*:*:*:*:*:*:* Versions v2 Running on ·NETGEAR
  • cpe:2.3:o:netgear:r7200_firmware:*:*:*:*:*:*:*:* Versions before 1.2.0.76 Vulnerable ·NETGEAR
  • cpe:2.3:h:netgear:r7200:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
  • cpe:2.3:o:netgear:r7350_firmware:*:*:*:*:*:*:*:* Versions before 1.2.0.76 Vulnerable ·NETGEAR
  • cpe:2.3:h:netgear:r7350:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
  • cpe:2.3:o:netgear:r7400_firmware:*:*:*:*:*:*:*:* Versions before 1.2.0.76 Vulnerable ·NETGEAR
  • cpe:2.3:h:netgear:r7400:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
  • cpe:2.3:o:netgear:r7450_firmware:*:*:*:*:*:*:*:* Versions before 1.2.0.76 Vulnerable ·NETGEAR
  • cpe:2.3:h:netgear:r7450:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
  • cpe:2.3:o:netgear:r6220_firmware:*:*:*:*:*:*:*:* Versions before 1.1.0.104 Vulnerable ·NETGEAR
  • cpe:2.3:h:netgear:r6220:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
  • cpe:2.3:o:netgear:r6230_firmware:*:*:*:*:*:*:*:* Versions before 1.1.0.104 Vulnerable ·NETGEAR
  • cpe:2.3:h:netgear:r6230:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
  • cpe:2.3:o:netgear:r6260_firmware:*:*:*:*:*:*:*:* Versions before 1.1.0.78 Vulnerable ·NETGEAR
  • cpe:2.3:h:netgear:r6260:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
  • cpe:2.3:o:netgear:r6330_firmware:*:*:*:*:*:*:*:* Versions before 1.1.0.78 Vulnerable ·NETGEAR
  • cpe:2.3:h:netgear:r6330:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
  • cpe:2.3:o:netgear:r6350_firmware:*:*:*:*:*:*:*:* Versions before 1.1.0.78 Vulnerable ·NETGEAR
  • cpe:2.3:h:netgear:r6350:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
  • cpe:2.3:o:netgear:r6850_firmware:*:*:*:*:*:*:*:* Versions before 1.1.0.78 Vulnerable ·NETGEAR
  • cpe:2.3:h:netgear:r6850:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
  • cpe:2.3:o:netgear:r6120_firmware:*:*:*:*:*:*:*:* Versions before 1.0.0.76 Vulnerable ·NETGEAR
  • cpe:2.3:h:netgear:r6120:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
  • cpe:2.3:o:netgear:r6020_firmware:*:*:*:*:*:*:*:* Versions before 1.0.0.48 Vulnerable ·NETGEAR
  • cpe:2.3:h:netgear:r6020:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
  • cpe:2.3:o:netgear:r6080_firmware:*:*:*:*:*:*:*:* Versions before 1.0.0.48 Vulnerable ·NETGEAR
  • cpe:2.3:h:netgear:r6080:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-27867
  2. 2026-10-03 Alias added: GHSA-9xcx-66r3-hp2h

References

Advisory 2

  • TI-2021-20598 Certain NETGEAR devices are affected by authentication bypass. CVSS 3.1CRITICAL 9.8
  • TI-2020-16934 Authentication bypass in NETGEAR Multiple Routers CVSS 3.1HIGH 8.8
  • TI-2021-16116 Certain NETGEAR devices are affected by lack of access control at the function level. CVSS 3.1CRITICAL 10.0
  • TI-2021-20724 Certain NETGEAR devices are affected by a stack-based buffer overflow by an… CVSS 3.1CRITICAL 9.8
  • TI-2021-09955 Certain NETGEAR devices are affected by a buffer overflow by an authenticated user. CVSS 3.1CRITICAL 9.9
  • TI-2021-20731 Certain NETGEAR devices are affected by incorrect configuration of security settings. CVSS 3.1CRITICAL 9.8
See all 25 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences