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Fencer Intel
critical 9.8

CVE-2021-45617 json

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

published 4y ago modified 4mo ago also EUVD-2021-32383

cvss
9.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
2.1%
EPSS 2.1% chance of exploitation in 30 days, percentile 81%
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, EAX20 before 1.0.0.48, EAX80 before 1.0.1.64, EX7500 before 1.0.0.72, R6400 before 1.0.1.68, R6900P before 1.3.2.132, R7000 before 1.0.11.116, R7000P before 1.3.2.132, R7900 before 1.0.4.38, R7960P before 1.4.1.66, R8000 before 1.0.4.66, RAX200 before 1.0.3.106, RS400 before 1.5.1.80, XR300 before 1.0.3.68, MK62 before 1.0.6.110, MR60 before 1.0.6.110, R6400v2 before 1.0.4.106, R8000P before 1.4.1.66, RAX20 before 1.0.2.64, RAX45 before 1.0.2.82, RAX80 before 1.0.3.106, MS60 before 1.0.6.110, R6700v3 before 1.0.4.106, R7900P before 1.4.1.66, RAX15 before 1.0.2.64, RAX50 before 1.0.2.82, RAX75 before 1.0.3.106, RBR750 before 3.2.16.22, RBR850 before 3.2.16.22, RBS750 before 3.2.16.22, RBS850 before 3.2.16.22, RBK752 before 3.2.16.22, and RBK852 before 3.2.16.22.

Patch / fix

  • netgear cbr40_firmware 2.5.0.24
  • netgear eax20_firmware 1.0.0.48
  • netgear eax80_firmware 1.0.1.64
  • netgear ex7500_firmware 1.0.0.72
  • netgear r6400_firmware 1.0.1.68
  • netgear r6900p_firmware 1.3.2.132
  • netgear r7000_firmware 1.0.11.116
  • netgear r7000p_firmware 1.3.2.132
  • netgear r7900_firmware 1.0.4.38
  • netgear r7960p_firmware 1.4.1.66
  • netgear r8000_firmware 1.0.4.66
  • netgear rax200_firmware 1.0.3.106
  • netgear rs400_firmware 1.5.1.80
  • netgear xr300_firmware 1.0.3.68
  • netgear mk62_firmware 1.0.6.110
  • netgear mr60_firmware 1.0.6.110
  • netgear r6400v2_firmware 1.0.4.106
  • netgear r8000p_firmware 1.4.1.66
  • netgear rax20_firmware 1.0.2.64
  • netgear rax45_firmware 1.0.2.82

Is CVE-2021-45617 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.

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Exploit prediction

2.06% chance of exploitation in the next 30 days, higher than 81% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.1 9.8 CVSS:3.1/AC:L/AV:N/A:H/C:H/I:H/PR:N/S:U/UI:N
CNA 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 10.0 AV:N/AC:L/Au:N/C:C/I:C/A:C

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.