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Fencer Vulns
medium 6.5

CVE-2021-45515 json

Certain NETGEAR devices are affected by denial of service.

published 2021-12-26 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-32281

cvss
6.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 41%
public exploits
0
none known

Summary

Certain NETGEAR devices are affected by denial of service. This affects EX7500 before 1.0.0.72, RBS40V before 2.6.1.4, RBW30 before 2.6.1.4, RBRE960 before 6.0.3.68, RBSE960 before 6.0.3.68, RBR750 before 3.2.17.12, RBR850 before 3.2.17.12, RBS750 before 3.2.17.12, RBS850 before 3.2.17.12, RBK752 before 3.2.17.12, and RBK852 before 3.2.17.12.

Patch / fix

  • netgear ex7500_firmware 1.0.0.72
  • netgear rbs40v_firmware 2.6.1.4
  • netgear rbw30_firmware 2.6.1.4
  • netgear rbke963_firmware 6.0.3.68
  • netgear rbre960_firmware 6.0.3.68
  • netgear rbse960_firmware 6.0.3.68
  • netgear rbr750_firmware 3.2.17.12
  • netgear rbr850_firmware 3.2.17.12
  • netgear rbs750_firmware 3.2.17.12
  • netgear rbs850_firmware 3.2.17.12
  • netgear rbk752_firmware 3.2.17.12
  • netgear rbk852_firmware 3.2.17.12

Exploit prediction

0.47% chance of exploitation in the next 30 days, higher than 41% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 6.5 CVSS:3.1/AC:L/AV:A/A:H/C:N/I:N/PR:N/S:U/UI:N
CNA 3.1 6.5 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 3.1 6.5 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 3.3 AV:A/AC:L/Au:N/C:N/I:N/A:P

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.