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Fencer Vulns
medium 4.5

CVE-2021-45604 json

Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user.

published 2021-12-26 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-32370

cvss
4.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 32%
public exploits
0
none known

Summary

Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user. This affects CBR750 before 3.2.18.2, D6220 before 1.0.0.68, D6400 before 1.0.0.102, D8500 before 1.0.3.60, LAX20 before 1.1.6.28, MK62 before 1.0.6.116, MR60 before 1.0.6.116, MS60 before 1.0.6.116, R6300v2 before 1.0.4.50, R6400 before 1.0.1.68, R6400v2 before 1.0.4.118, R6700v3 before 1.0.4.118, R6900P before 1.3.3.140, R7000 before 1.0.11.116, R7000P before 1.3.3.140, R7850 before 1.0.5.68, R7900 before 1.0.4.38, R7900P before 1.4.2.84, R7960P before 1.4.2.84, R8000 before 1.0.4.68, R8000P before 1.4.2.84, RAX15 before 1.0.3.96, RAX20 before 1.0.3.96, RAX200 before 1.0.4.120, RAX35v2 before 1.0.3.96, RAX40v2 before 1.0.3.96, RAX43 before 1.0.3.96, RAX45 before 1.0.3.96, RAX50 before 1.0.3.96, RAX75 before 1.0.4.120, RAX80 before 1.0.4.120, RBK752 before 3.2.17.12, RBK852 before 3.2.17.12, RBR750 before 3.2.17.12, RBR850 before 3.2.17.12, RBS750 before 3.2.17.12, RBS850 before 3.2.17.12, RS400 before 1.5.1.80, and XR1000 before 1.0.0.58.

Patch / fix

  • netgear cbr750_firmware 3.2.18.2
  • netgear d6220_firmware 1.0.0.68
  • netgear d6400_firmware 1.0.0.102
  • netgear d8500_firmware 1.0.3.60
  • netgear lax20_firmware 1.1.6.28
  • netgear mk62_firmware 1.0.6.116
  • netgear mr60_firmware 1.0.6.116
  • netgear ms60_firmware 1.0.6.116
  • netgear r6300_firmware 1.0.4.50
  • netgear r6400_firmware 1.0.1.68, 1.0.4.118
  • netgear r6700_firmware 1.0.4.118
  • netgear r6900p_firmware 1.3.3.140
  • netgear r7000_firmware 1.0.11.116
  • netgear r7000p_firmware 1.3.3.140
  • netgear r7850_firmware 1.0.5.68
  • netgear r7900_firmware 1.0.4.38
  • netgear r7900p_firmware 1.4.2.84
  • netgear r7960p_firmware 1.4.2.84
  • netgear r8000_firmware 1.0.4.68
  • netgear r8000p_firmware 1.4.2.84

Exploit prediction

0.38% chance of exploitation in the next 30 days, higher than 32% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 4.5 CVSS:3.1/AC:L/AV:A/A:H/C:N/I:N/PR:H/S:U/UI:N
CNA 3.1 4.5 CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
NVD 3.1 4.5 CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 2.7 AV:A/AC:L/Au:S/C:N/I:N/A:P

Classification

Weakness

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.