Read the docs
TI-2021-16127 Aliases CVE-2021-38527GHSA-qccx-cxhf-2m4w

Certain NETGEAR devices are affected by command injection by an unauthenticated attacker.

Priority MEDIUM 45CWE-77Published · Updated

Key facts

Attack vector
Network
Privileges required
None
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

Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. This affects CBR40 before 2.5.0.14, EX6100v2 before 1.0.1.98, EX6150v2 before 1.0.1.98, EX6250 before 1.0.0.132, EX6400 before 1.0.2.158, EX6400v2 before 1.0.0.132, EX6410 before 1.0.0.132, EX6420 before 1.0.0.132, EX7300 before 1.0.2.158, EX7300v2 before 1.0.0.132, EX7320 before 1.0.0.132, EX7700 before 1.0.0.216, EX8000 before 1.0.1.232, R7800 before 1.0.2.78, RBK12 before 2.6.1.44, RBR10 before 2.6.1.44, RBS10 before 2.6.1.44, RBK20 before 2.6.1.38, RBR20 before 2.6.1.36, RBS20 before 2.6.1.38, RBK40 before 2.6.1.38, RBR40 before 2.6.1.36, RBS40 before 2.6.1.38, RBK50 before 2.6.1.40, RBR50 before 2.6.1.40, RBS50 before 2.6.1.40, RBK752 before 3.2.16.6, RBR750 before 3.2.16.6, RBS750 before 3.2.16.6, RBK852 before 3.2.16.6, RBR850 before 3.2.16.6, RBS850 before 3.2.16.6, RBS40V before 2.6.2.4, RBS50Y before 2.6.1.40, RBW30 before 2.6.2.2, and XR500 before 2.3.2.114.

Why it matters now

EPSS 0.01685 77th 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
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 71

CPEVersionsRoleVendor
cpe:2.3:o:netgear:cbr40_firmware:*:*:*:*:*:*:*:*before 2.5.0.14VulnerableNETGEAR
cpe:2.3:h:netgear:cbr40:-:*:*:*:*:*:*:*not specified by NVDRunning onNETGEAR
cpe:2.3:o:netgear:ex6100_firmware:*:*:*:*:*:*:*:*before 1.0.1.98VulnerableNETGEAR
cpe:2.3:h:netgear:ex6100:v2:*:*:*:*:*:*:*v2Running onNETGEAR
cpe:2.3:o:netgear:ex6150_firmware:*:*:*:*:*:*:*:*before 1.0.1.98VulnerableNETGEAR
cpe:2.3:h:netgear:ex6150:v2:*:*:*:*:*:*:*v2Running onNETGEAR
cpe:2.3:o:netgear:ex6250_firmware:*:*:*:*:*:*:*:*before 1.0.0.132VulnerableNETGEAR
cpe:2.3:h:netgear:ex6250:-:*:*:*:*:*:*:*not specified by NVDRunning onNETGEAR
cpe:2.3:o:netgear:ex6400_firmware:*:*:*:*:*:*:*:*before 1.0.2.158VulnerableNETGEAR
cpe:2.3:h:netgear:ex6400:-:*:*:*:*:*:*:*not specified by NVDRunning onNETGEAR
  • cpe:2.3:o:netgear:cbr40_firmware:*:*:*:*:*:*:*:* Versions before 2.5.0.14 Vulnerable ·NETGEAR
  • cpe:2.3:h:netgear:cbr40:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
  • cpe:2.3:o:netgear:ex6100_firmware:*:*:*:*:*:*:*:* Versions before 1.0.1.98 Vulnerable ·NETGEAR
  • cpe:2.3:h:netgear:ex6100:v2:*:*:*:*:*:*:* Versions v2 Running on ·NETGEAR
  • cpe:2.3:o:netgear:ex6150_firmware:*:*:*:*:*:*:*:* Versions before 1.0.1.98 Vulnerable ·NETGEAR
  • cpe:2.3:h:netgear:ex6150:v2:*:*:*:*:*:*:* Versions v2 Running on ·NETGEAR
  • cpe:2.3:o:netgear:ex6250_firmware:*:*:*:*:*:*:*:* Versions before 1.0.0.132 Vulnerable ·NETGEAR
  • cpe:2.3:h:netgear:ex6250:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
  • cpe:2.3:o:netgear:ex6400_firmware:*:*:*:*:*:*:*:* Versions before 1.0.2.158 Vulnerable ·NETGEAR
  • cpe:2.3:h:netgear:ex6400:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
Show 61 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:netgear:ex6400_firmware:*:*:*:*:*:*:*:*before 1.0.0.132VulnerableNETGEAR
cpe:2.3:h:netgear:ex6400:v2:*:*:*:*:*:*:*v2Running onNETGEAR
cpe:2.3:o:netgear:ex6410_firmware:*:*:*:*:*:*:*:*before 1.0.0.132VulnerableNETGEAR
cpe:2.3:h:netgear:ex6410:-:*:*:*:*:*:*:*not specified by NVDRunning onNETGEAR
cpe:2.3:o:netgear:ex6420_firmware:*:*:*:*:*:*:*:*before 1.0.0.132VulnerableNETGEAR
cpe:2.3:h:netgear:ex6420:-:*:*:*:*:*:*:*not specified by NVDRunning onNETGEAR
cpe:2.3:o:netgear:ex7300_firmware:*:*:*:*:*:*:*:*before 1.0.2.158VulnerableNETGEAR
cpe:2.3:h:netgear:ex7300:-:*:*:*:*:*:*:*not specified by NVDRunning onNETGEAR
cpe:2.3:h:netgear:ex7300:v2:*:*:*:*:*:*:*v2Running onNETGEAR
cpe:2.3:o:netgear:ex7320_firmware:*:*:*:*:*:*:*:*before 1.0.0.132VulnerableNETGEAR
cpe:2.3:h:netgear:ex7320:-:*:*:*:*:*:*:*not specified by NVDRunning onNETGEAR
cpe:2.3:o:netgear:ex7700_firmware:*:*:*:*:*:*:*:*before 1.0.0.216VulnerableNETGEAR
cpe:2.3:h:netgear:ex7700:-:*:*:*:*:*:*:*not specified by NVDRunning onNETGEAR
cpe:2.3:o:netgear:ex8000_firmware:*:*:*:*:*:*:*:*before 1.0.1.232VulnerableNETGEAR
cpe:2.3:h:netgear:ex8000:-:*:*:*:*:*:*:*not specified by NVDRunning onNETGEAR
cpe:2.3:o:netgear:r7800_firmware:*:*:*:*:*:*:*:*before 1.0.2.78VulnerableNETGEAR
cpe:2.3:h:netgear:r7800:-:*:*:*:*:*:*:*not specified by NVDRunning onNETGEAR
cpe:2.3:o:netgear:rbk12_firmware:*:*:*:*:*:*:*:*before 2.6.1.44VulnerableNETGEAR
cpe:2.3:h:netgear:rbk12:-:*:*:*:*:*:*:*not specified by NVDRunning onNETGEAR
cpe:2.3:o:netgear:rbr10_firmware:*:*:*:*:*:*:*:*before 2.6.1.44VulnerableNETGEAR
cpe:2.3:h:netgear:rbr10:-:*:*:*:*:*:*:*not specified by NVDRunning onNETGEAR
cpe:2.3:o:netgear:rbs10_firmware:*:*:*:*:*:*:*:*before 2.6.1.44VulnerableNETGEAR
cpe:2.3:h:netgear:rbs10:-:*:*:*:*:*:*:*not specified by NVDRunning onNETGEAR
cpe:2.3:o:netgear:rbk20_firmware:*:*:*:*:*:*:*:*before 2.6.1.38VulnerableNETGEAR
cpe:2.3:h:netgear:rbk20:-:*:*:*:*:*:*:*not specified by NVDRunning onNETGEAR
cpe:2.3:o:netgear:rbr20_firmware:*:*:*:*:*:*:*:*before 2.6.1.36VulnerableNETGEAR
cpe:2.3:h:netgear:rbr20:-:*:*:*:*:*:*:*not specified by NVDRunning onNETGEAR
cpe:2.3:o:netgear:rbs20_firmware:*:*:*:*:*:*:*:*before 2.6.1.38VulnerableNETGEAR
cpe:2.3:h:netgear:rbs20:-:*:*:*:*:*:*:*not specified by NVDRunning onNETGEAR
cpe:2.3:o:netgear:rbk40_firmware:*:*:*:*:*:*:*:*before 2.6.1.38VulnerableNETGEAR
cpe:2.3:h:netgear:rbk40:-:*:*:*:*:*:*:*not specified by NVDRunning onNETGEAR
cpe:2.3:o:netgear:rbr40_firmware:*:*:*:*:*:*:*:*before 2.6.1.36VulnerableNETGEAR
cpe:2.3:h:netgear:rbr40:-:*:*:*:*:*:*:*not specified by NVDRunning onNETGEAR
cpe:2.3:o:netgear:rbs40_firmware:*:*:*:*:*:*:*:*before 2.6.1.38VulnerableNETGEAR
cpe:2.3:h:netgear:rbs40:-:*:*:*:*:*:*:*not specified by NVDRunning onNETGEAR
cpe:2.3:o:netgear:rbk50_firmware:*:*:*:*:*:*:*:*before 2.6.1.40VulnerableNETGEAR
cpe:2.3:h:netgear:rbk50:-:*:*:*:*:*:*:*not specified by NVDRunning onNETGEAR
cpe:2.3:o:netgear:rbr50_firmware:*:*:*:*:*:*:*:*before 2.6.1.40VulnerableNETGEAR
cpe:2.3:h:netgear:rbr50:-:*:*:*:*:*:*:*not specified by NVDRunning onNETGEAR
cpe:2.3:o:netgear:rbs50_firmware:*:*:*:*:*:*:*:*before 2.6.1.40VulnerableNETGEAR
cpe:2.3:h:netgear:rbs50:-:*:*:*:*:*:*:*not specified by NVDRunning onNETGEAR
cpe:2.3:o:netgear:rbk752_firmware:*:*:*:*:*:*:*:*before 3.2.16.6VulnerableNETGEAR
cpe:2.3:h:netgear:rbk752:-:*:*:*:*:*:*:*not specified by NVDRunning onNETGEAR
cpe:2.3:o:netgear:rbr750_firmware:*:*:*:*:*:*:*:*before 3.2.16.6VulnerableNETGEAR
cpe:2.3:h:netgear:rbr750:-:*:*:*:*:*:*:*not specified by NVDRunning onNETGEAR
cpe:2.3:o:netgear:rbs750_firmware:*:*:*:*:*:*:*:*before 3.2.16.6VulnerableNETGEAR
cpe:2.3:h:netgear:rbs750:-:*:*:*:*:*:*:*not specified by NVDRunning onNETGEAR
cpe:2.3:o:netgear:rbk852_firmware:*:*:*:*:*:*:*:*before 3.2.16.6VulnerableNETGEAR
cpe:2.3:h:netgear:rbk852:-:*:*:*:*:*:*:*not specified by NVDRunning onNETGEAR
cpe:2.3:o:netgear:rbr850_firmware:*:*:*:*:*:*:*:*before 3.2.16.6VulnerableNETGEAR
cpe:2.3:h:netgear:rbr850:-:*:*:*:*:*:*:*not specified by NVDRunning onNETGEAR
cpe:2.3:o:netgear:rbs850_firmware:*:*:*:*:*:*:*:*before 3.2.16.6VulnerableNETGEAR
cpe:2.3:h:netgear:rbs850:-:*:*:*:*:*:*:*not specified by NVDRunning onNETGEAR
cpe:2.3:o:netgear:rbs40v_firmware:*:*:*:*:*:*:*:*before 2.6.2.4VulnerableNETGEAR
cpe:2.3:h:netgear:rbs40v:-:*:*:*:*:*:*:*not specified by NVDRunning onNETGEAR
cpe:2.3:o:netgear:rbs50y_firmware:*:*:*:*:*:*:*:*before 2.6.1.40VulnerableNETGEAR
cpe:2.3:h:netgear:rbs50y:-:*:*:*:*:*:*:*not specified by NVDRunning onNETGEAR
cpe:2.3:o:netgear:rbw30_firmware:*:*:*:*:*:*:*:*before 2.6.2.2VulnerableNETGEAR
cpe:2.3:h:netgear:rbw30:-:*:*:*:*:*:*:*not specified by NVDRunning onNETGEAR
cpe:2.3:o:netgear:xr500_firmware:*:*:*:*:*:*:*:*before 2.3.2.114VulnerableNETGEAR
cpe:2.3:h:netgear:xr500:-:*:*:*:*:*:*:*not specified by NVDRunning onNETGEAR
  • cpe:2.3:o:netgear:ex6400_firmware:*:*:*:*:*:*:*:* Versions before 1.0.0.132 Vulnerable ·NETGEAR
  • cpe:2.3:h:netgear:ex6400:v2:*:*:*:*:*:*:* Versions v2 Running on ·NETGEAR
  • cpe:2.3:o:netgear:ex6410_firmware:*:*:*:*:*:*:*:* Versions before 1.0.0.132 Vulnerable ·NETGEAR
  • cpe:2.3:h:netgear:ex6410:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
  • cpe:2.3:o:netgear:ex6420_firmware:*:*:*:*:*:*:*:* Versions before 1.0.0.132 Vulnerable ·NETGEAR
  • cpe:2.3:h:netgear:ex6420:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
  • cpe:2.3:o:netgear:ex7300_firmware:*:*:*:*:*:*:*:* Versions before 1.0.2.158 Vulnerable ·NETGEAR
  • cpe:2.3:h:netgear:ex7300:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
  • cpe:2.3:h:netgear:ex7300:v2:*:*:*:*:*:*:* Versions v2 Running on ·NETGEAR
  • cpe:2.3:o:netgear:ex7320_firmware:*:*:*:*:*:*:*:* Versions before 1.0.0.132 Vulnerable ·NETGEAR
  • cpe:2.3:h:netgear:ex7320:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
  • cpe:2.3:o:netgear:ex7700_firmware:*:*:*:*:*:*:*:* Versions before 1.0.0.216 Vulnerable ·NETGEAR
  • cpe:2.3:h:netgear:ex7700:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
  • cpe:2.3:o:netgear:ex8000_firmware:*:*:*:*:*:*:*:* Versions before 1.0.1.232 Vulnerable ·NETGEAR
  • cpe:2.3:h:netgear:ex8000:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
  • cpe:2.3:o:netgear:r7800_firmware:*:*:*:*:*:*:*:* Versions before 1.0.2.78 Vulnerable ·NETGEAR
  • cpe:2.3:h:netgear:r7800:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
  • cpe:2.3:o:netgear:rbk12_firmware:*:*:*:*:*:*:*:* Versions before 2.6.1.44 Vulnerable ·NETGEAR
  • cpe:2.3:h:netgear:rbk12:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
  • cpe:2.3:o:netgear:rbr10_firmware:*:*:*:*:*:*:*:* Versions before 2.6.1.44 Vulnerable ·NETGEAR
  • cpe:2.3:h:netgear:rbr10:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
  • cpe:2.3:o:netgear:rbs10_firmware:*:*:*:*:*:*:*:* Versions before 2.6.1.44 Vulnerable ·NETGEAR
  • cpe:2.3:h:netgear:rbs10:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
  • cpe:2.3:o:netgear:rbk20_firmware:*:*:*:*:*:*:*:* Versions before 2.6.1.38 Vulnerable ·NETGEAR
  • cpe:2.3:h:netgear:rbk20:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
  • cpe:2.3:o:netgear:rbr20_firmware:*:*:*:*:*:*:*:* Versions before 2.6.1.36 Vulnerable ·NETGEAR
  • cpe:2.3:h:netgear:rbr20:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
  • cpe:2.3:o:netgear:rbs20_firmware:*:*:*:*:*:*:*:* Versions before 2.6.1.38 Vulnerable ·NETGEAR
  • cpe:2.3:h:netgear:rbs20:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
  • cpe:2.3:o:netgear:rbk40_firmware:*:*:*:*:*:*:*:* Versions before 2.6.1.38 Vulnerable ·NETGEAR
  • cpe:2.3:h:netgear:rbk40:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
  • cpe:2.3:o:netgear:rbr40_firmware:*:*:*:*:*:*:*:* Versions before 2.6.1.36 Vulnerable ·NETGEAR
  • cpe:2.3:h:netgear:rbr40:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
  • cpe:2.3:o:netgear:rbs40_firmware:*:*:*:*:*:*:*:* Versions before 2.6.1.38 Vulnerable ·NETGEAR
  • cpe:2.3:h:netgear:rbs40:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
  • cpe:2.3:o:netgear:rbk50_firmware:*:*:*:*:*:*:*:* Versions before 2.6.1.40 Vulnerable ·NETGEAR
  • cpe:2.3:h:netgear:rbk50:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
  • cpe:2.3:o:netgear:rbr50_firmware:*:*:*:*:*:*:*:* Versions before 2.6.1.40 Vulnerable ·NETGEAR
  • cpe:2.3:h:netgear:rbr50:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
  • cpe:2.3:o:netgear:rbs50_firmware:*:*:*:*:*:*:*:* Versions before 2.6.1.40 Vulnerable ·NETGEAR
  • cpe:2.3:h:netgear:rbs50:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
  • cpe:2.3:o:netgear:rbk752_firmware:*:*:*:*:*:*:*:* Versions before 3.2.16.6 Vulnerable ·NETGEAR
  • cpe:2.3:h:netgear:rbk752:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
  • cpe:2.3:o:netgear:rbr750_firmware:*:*:*:*:*:*:*:* Versions before 3.2.16.6 Vulnerable ·NETGEAR
  • cpe:2.3:h:netgear:rbr750:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
  • cpe:2.3:o:netgear:rbs750_firmware:*:*:*:*:*:*:*:* Versions before 3.2.16.6 Vulnerable ·NETGEAR
  • cpe:2.3:h:netgear:rbs750:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
  • cpe:2.3:o:netgear:rbk852_firmware:*:*:*:*:*:*:*:* Versions before 3.2.16.6 Vulnerable ·NETGEAR
  • cpe:2.3:h:netgear:rbk852:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
  • cpe:2.3:o:netgear:rbr850_firmware:*:*:*:*:*:*:*:* Versions before 3.2.16.6 Vulnerable ·NETGEAR
  • cpe:2.3:h:netgear:rbr850:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
  • cpe:2.3:o:netgear:rbs850_firmware:*:*:*:*:*:*:*:* Versions before 3.2.16.6 Vulnerable ·NETGEAR
  • cpe:2.3:h:netgear:rbs850:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
  • cpe:2.3:o:netgear:rbs40v_firmware:*:*:*:*:*:*:*:* Versions before 2.6.2.4 Vulnerable ·NETGEAR
  • cpe:2.3:h:netgear:rbs40v:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
  • cpe:2.3:o:netgear:rbs50y_firmware:*:*:*:*:*:*:*:* Versions before 2.6.1.40 Vulnerable ·NETGEAR
  • cpe:2.3:h:netgear:rbs50y:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
  • cpe:2.3:o:netgear:rbw30_firmware:*:*:*:*:*:*:*:* Versions before 2.6.2.2 Vulnerable ·NETGEAR
  • cpe:2.3:h:netgear:rbw30:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
  • cpe:2.3:o:netgear:xr500_firmware:*:*:*:*:*:*:*:* Versions before 2.3.2.114 Vulnerable ·NETGEAR
  • cpe:2.3:h:netgear:xr500:-:*:*:*:*:*:*:* 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-2021-38527
  2. 2026-10-03 Alias added: GHSA-qccx-cxhf-2m4w

References

Advisory 1

  • TI-2024-18843 An information leak in the currentsetting.htm component of Netgear CBR40 2.5.0.28… CVSS 3.1HIGH 7.5
  • TI-2024-18842 An information leak in the debuginfo.htm component of Netgear CBR40 2.5.0.28, Netgear… CVSS 3.1MEDIUM 5.4
  • TI-2023-18149 Buffer Overflow vulnerability in NETGEAR R6400v2 before version 1.0.4.118, allows remote… CVSS 3.1CRITICAL 9.8
  • TI-2021-20709 Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. CVSS 3.1CRITICAL 9.8
  • TI-2021-20699 Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. CVSS 3.1CRITICAL 9.8
  • TI-2021-20717 Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. CVSS 3.1CRITICAL 10.0
See all 47 →

Sources

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