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Fencer Intel
critical 9.6

CVE-2021-45611 json

Certain NETGEAR devices are affected by a buffer overflow by an unauthenticated attacker.

published 4y ago modified 4mo ago also EUVD-2021-32377

cvss
9.6
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.2%
EPSS 1.2% chance of exploitation in 30 days, percentile 69%
public exploits
0
none known

Summary

Certain NETGEAR devices are affected by a buffer overflow by an unauthenticated attacker. This affects DC112A before 1.0.0.52, R6400 before 1.0.1.68, RAX200 before 1.0.3.106, WNDR3400v3 before 1.0.1.38, XR300 before 1.0.3.68, R8500 before 1.0.2.144, RAX75 before 1.0.3.106, R8300 before 1.0.2.144, and RAX80 before 1.0.3.106.

Patch / fix

  • netgear dc112a_firmware 1.0.0.52
  • netgear r6400_firmware 1.0.1.68
  • netgear r8300_firmware 1.0.2.144
  • netgear r8500_firmware 1.0.2.144
  • netgear wndr3400v3_firmware 1.0.1.38
  • netgear xr300_firmware 1.0.3.68
  • netgear rax200_firmware 1.0.3.106
  • netgear rax75_firmware 1.0.3.106
  • netgear rax80_firmware 1.0.3.106

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Exploit prediction

1.24% chance of exploitation in the next 30 days, higher than 69% 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 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness
  • CWE-120 Buffer Copy without Checking Size of Input

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.