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Fencer Intel
critical 9.6

CVE-2021-38513 json

Certain NETGEAR devices are affected by authentication bypass.

published 5y ago modified 4mo ago also EUVD-2021-24963

cvss
9.6
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.8%
EPSS 1.8% chance of exploitation in 30 days, percentile 79%
public exploits
0
none known

Summary

Certain NETGEAR devices are affected by authentication bypass. This affects RBK852 before 3.2.10.11, RBR850 before 3.2.10.11, RBS850 before 3.2.10.11, CBR40 before 2.5.0.10, EAX20 before 1.0.0.48, MK62 before 1.0.6.110, MR60 before 1.0.6.110, MS60 before 1.0.6.110, RBK752 before 3.2.10.10, RBR750 before 3.2.10.10, and RBS750 before 3.2.10.10.

Patch / fix

  • netgear rbk852_firmware 3.2.10.11
  • netgear rbr850_firmware 3.2.10.11
  • netgear rbs850_firmware 3.2.10.11
  • netgear cbr40_firmware 2.5.0.10
  • netgear eax20_firmware 1.0.0.48
  • netgear mk62_firmware 1.0.6.110
  • netgear mr60_firmware 1.0.6.110
  • netgear ms60_firmware 1.0.6.110
  • netgear rbk752_firmware 3.2.10.10
  • netgear rbr750_firmware 3.2.10.10
  • netgear rbs750_firmware 3.2.10.10

Is CVE-2021-38513 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

1.83% chance of exploitation in the next 30 days, higher than 79% 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:L/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:L
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

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.