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Fencer Vulns
high 7.6

CVE-2021-45595 json

Certain NETGEAR devices are affected by command injection by an authenticated user.

published 2021-12-26 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-32361

cvss
7.6
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.7%
EPSS 1.7% chance of exploitation in 30 days, percentile 76%
public exploits
0
none known

Summary

Certain NETGEAR devices are affected by command injection by an authenticated user. This affects LBR20 before 2.6.3.50, RBS50Y before 2.7.3.22, RBR10 before 2.7.3.22, RBR20 before 2.7.3.22, RBR40 before 2.7.3.22, RBR50 before 2.7.3.22, RBS10 before 2.7.3.22, RBS20 before 2.7.3.22, RBS40 before 2.7.3.22, RBS50 before 2.7.3.22, RBK12 before 2.7.3.22, RBK20 before 2.7.3.22, RBK40 before 2.7.3.22, and RBK50 before 2.7.3.22.

Patch / fix

  • netgear lbr20_firmware 2.6.3.50
  • netgear rbs50y_firmware 2.7.3.22
  • netgear rbr10_firmware 2.7.3.22
  • netgear rbr20_firmware 2.7.3.22
  • netgear rbr40_firmware 2.7.3.22
  • netgear rbr50_firmware 2.7.3.22
  • netgear rbs10_firmware 2.7.3.22
  • netgear rbs20_firmware 2.7.3.22
  • netgear rbs40_firmware 2.7.3.22
  • netgear rbs50_firmware 2.7.3.22
  • netgear rbk12_firmware 2.7.3.22
  • netgear rbk20_firmware 2.7.3.22
  • netgear rbk40_firmware 2.7.3.22
  • netgear rbk50_firmware 2.7.3.22

Exploit prediction

1.67% chance of exploitation in the next 30 days, higher than 76% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 7.6 CVSS:3.1/AC:H/AV:A/A:H/C:H/I:H/PR:H/S:C/UI:N
CNA 3.1 7.6 CVSS:3.1/AV:A/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
NVD 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 6.5 AV:N/AC:L/Au:S/C:P/I:P/A:P

Classification

Weakness
  • CWE-77 Improper Neutralization of Special Elements used in a Command

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.