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Fencer Vulns
high 8.4

CVE-2021-45555 json

Certain NETGEAR devices are affected by command injection by an authenticated user.

published 2021-12-26 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-32321

cvss
8.4
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 78%
public exploits
0
none known

Summary

Certain NETGEAR devices are affected by command injection by an authenticated user. This affects R7900P before 1.4.2.84, R7960P before 1.4.2.84, and R8000P before 1.4.2.84.

Patch / fix

  • netgear r7900p_firmware 1.4.2.84
  • netgear r7960p_firmware 1.4.2.84
  • netgear r8000p_firmware 1.4.2.84

Exploit prediction

1.76% chance of exploitation in the next 30 days, higher than 78% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 8.4 CVSS:3.1/AC:L/AV:A/A:H/C:H/I:H/PR:H/S:C/UI:N
CNA 3.1 8.4 CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
NVD 3.1 6.8 CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 6.5 AV:N/AC:L/Au:S/C:P/I:P/A:P

Classification

Weakness
  • CWE-77 Improper Neutralization of Special Elements used in a Command

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.