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Fencer Vulns
medium 6.8

CVE-2021-45511 json

Certain NETGEAR devices are affected by authentication bypass.

published 2021-12-26 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-32277

cvss
6.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
18.9%
EPSS 18.9% chance of exploitation in 30 days, percentile 97%
public exploits
1
Metasploit

Summary

Certain NETGEAR devices are affected by authentication bypass. This affects AC2100 before 2021-08-27, AC2400 before 2021-08-27, AC2600 before 2021-08-27, D7000 before 2021-08-27, R6220 before 2021-08-27, R6230 before 2021-08-27, R6260 before 2021-08-27, R6330 before 2021-08-27, R6350 before 2021-08-27, R6700v2 before 2021-08-27, R6800 before 2021-08-27, R6850 before 2021-08-27, R6900v2 before 2021-08-27, R7200 before 2021-08-27, R7350 before 2021-08-27, R7400 before 2021-08-27, and R7450 before 2021-08-27.

Patch / fix

  • netgear ac2100_firmware 1.2.0.88
  • netgear ac2400_firmware 1.2.0.88
  • netgear ac2600_firmware 1.2.0.88
  • netgear d7000_firmware 1.0.1.80
  • netgear r6220_firmware 1.1.0.110
  • netgear r6230_firmware 1.1.0.110
  • netgear r6260_firmware 1.1.0.84
  • netgear r6330_firmware 1.1.0.84
  • netgear r6350_firmware 1.1.0.84
  • netgear r6700v2_firmware 1.2.0.88
  • netgear r6800_firmware 1.2.0.88
  • netgear r6850_firmware 1.1.0.84
  • netgear r6900v2_firmware 1.2.0.88
  • netgear r7200_firmware 1.2.0.88
  • netgear r7350_firmware 1.2.0.88
  • netgear r7400_firmware 1.2.0.88
  • netgear r7450_firmware 1.2.0.88

Timeline

  1. First public exploit (Metasploit auxiliary/admin/http/netgear_pnpx_getsharefolderlist_auth_bypass)
  2. Published

Exploit prediction

18.88% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

CVSS scores

assigned by version score vector
CNA 3.1 6.8 CVSS:3.1/AC:L/AV:A/A:H/C:H/I:H/PR:H/S:U/UI:N
CNA 3.1 6.8 CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/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 10.0 AV:N/AC:L/Au:N/C:C/I:C/A:C

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.