Skip to content
Fencer Intel
critical 9.6

CVE-2021-45628 json

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

published 4y ago modified 4mo ago also EUVD-2021-32394

cvss
9.6
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.8%
EPSS 0.8% chance of exploitation in 30 days, percentile 57%
public exploits
0
none known

Summary

Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. This affects CBR40 before 2.5.0.24, CBR750 before 3.2.18.2, RBK752 before 3.2.17.12, RBR750 before 3.2.17.12, RBS750 before 3.2.17.12, RBK852 before 3.2.17.12, RBR850 before 3.2.17.12, RBS850 before 3.2.17.12, RBS40V before 2.6.2.4, and RBW30 before 2.6.2.2.

Patch / fix

  • netgear cbr40_firmware 2.5.0.24
  • netgear cbr750_firmware 3.2.18.2
  • netgear rbk752_firmware 3.2.17.12
  • netgear rbr750_firmware 3.2.17.12
  • netgear rbs750_firmware 3.2.17.12
  • netgear rbk852_firmware 3.2.17.12
  • netgear rbr850_firmware 3.2.17.12
  • netgear rbs850_firmware 3.2.17.12
  • netgear rbs40v_firmware 2.6.2.4
  • netgear rbw30_firmware 2.6.2.2

Is CVE-2021-45628 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

Exploit prediction

0.82% chance of exploitation in the next 30 days, higher than 57% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.1 9.6 CVSS:3.1/AC:L/AV:A/A:H/C:H/I:H/PR:N/S:C/UI:N
CNA 3.1 9.6 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
NVD 3.1 8.8 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 5.8 AV:A/AC:L/Au:N/C:P/I:P/A:P

Classification

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

References

Sources

Fencer Intel 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.