Skip to content
Fencer Vulns
medium 6.1

CVE-2021-45603 json

Certain NETGEAR devices are affected by disclosure of sensitive information.

published 2021-12-26 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-32369

cvss
6.1
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 48%
public exploits
0
none known

Summary

Certain NETGEAR devices are affected by disclosure of sensitive information. A UPnP request reveals a device's serial number, which can be used for a password reset. This affects D7800 before 1.0.1.66, EX2700 before 1.0.1.68, WN3000RPv2 before 1.0.0.90, WN3000RPv3 before 1.0.2.100, LBR1020 before 2.6.5.20, LBR20 before 2.6.5.32, R6700AX before 1.0.10.110, R7800 before 1.0.2.86, R8900 before 1.0.5.38, R9000 before 1.0.5.38, RAX10 before 1.0.10.110, RAX120v1 before 1.2.3.28, RAX120v2 before 1.2.3.28, RAX70 before 1.0.10.110, RAX78 before 1.0.10.110, XR450 before 2.3.2.130, XR500 before 2.3.2.130, and XR700 before 1.0.1.46.

Patch / fix

  • netgear d7800_firmware 1.0.1.66
  • netgear ex2700_firmware 1.0.1.68
  • netgear wn3000rpv2_firmware 1.0.0.90
  • netgear wn3000rpv3_firmware 1.0.2.100
  • netgear lbr1020_firmware 2.6.5.20
  • netgear lbr20_firmware 2.6.5.32
  • netgear r6700ax_firmware 1.0.10.110
  • netgear r7800_firmware 1.0.2.86
  • netgear r8900_firmware 1.0.5.38
  • netgear r9000_firmware 1.0.5.38
  • netgear rax10_firmware 1.0.10.110
  • netgear rax120v1_firmware 1.2.3.28
  • netgear rax120v2_firmware 1.2.3.28
  • netgear rax70_firmware 1.0.10.110
  • netgear rax78_firmware 1.0.10.110
  • netgear xr450_firmware 2.3.2.130
  • netgear xr500_firmware 2.3.2.130
  • netgear xr700_firmware 1.0.1.46

Exploit prediction

0.60% chance of exploitation in the next 30 days, higher than 48% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 6.1 CVSS:3.1/AC:L/AV:L/A:L/C:H/I:N/PR:L/S:U/UI:N
CNA 3.1 6.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L
NVD 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
NVD 2.0 2.1 AV:L/AC:L/Au:N/C:P/I:N/A:N

Classification

Weakness
  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.