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Fencer Intel
medium 6.5

CVE-2021-45670 json

Certain NETGEAR devices are affected by stored XSS.

published 4y ago modified 4mo ago also EUVD-2021-32436

cvss
6.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 37%
public exploits
0
none known

Summary

Certain NETGEAR devices are affected by stored XSS. This affects CBR40 before 2.5.0.10, EAX20 before 1.0.0.48, EAX80 before 1.0.1.64, EX6120 before 1.0.0.64, EX6130 before 1.0.0.44, EX7500 before 1.0.0.72, R7000 before 1.0.11.116, R7900 before 1.0.4.38, R8000 before 1.0.4.68, RAX200 before 1.0.3.106, RBS40V before 2.6.1.4, RBW30 before 2.6.1.4, EX3700 before 1.0.0.90, MR60 before 1.0.6.110, R7000P before 1.3.2.126, RAX20 before 1.0.2.82, RAX45 before 1.0.2.72, RAX80 before 1.0.3.106, EX3800 before 1.0.0.90, MS60 before 1.0.6.110, R6900P before 1.3.2.126, RAX15 before 1.0.2.82, RAX50 before 1.0.2.72, RAX75 before 1.0.3.106, RBR750 before 3.2.16.6, RBR850 before 3.2.16.6, RBS750 before 3.2.16.6, RBS850 before 3.2.16.6, RBK752 before 3.2.16.6, and RBK852 before 3.2.16.6.

Patch / fix

  • netgear rax200_firmware 1.0.3.106
  • netgear mr60_firmware 1.0.6.110
  • netgear rax20_firmware 1.0.2.82
  • netgear rax45_firmware 1.0.2.72
  • netgear rax80_firmware 1.0.3.106
  • netgear ms60_firmware 1.0.6.110
  • netgear rax15_firmware 1.0.2.82
  • netgear rax50_firmware 1.0.2.72
  • netgear rax75_firmware 1.0.3.106
  • netgear rbr750_firmware 3.2.16.6
  • netgear rbr850_firmware 3.2.16.6
  • netgear rbs750_firmware 3.2.16.6
  • netgear rbs850_firmware 3.2.16.6
  • netgear rbk752_firmware 3.2.16.6
  • netgear rbk852_firmware 3.2.16.6
  • netgear cbr40_firmware 2.5.0.10
  • netgear eax20_firmware 1.0.0.48
  • netgear eax80_firmware 1.0.1.64
  • netgear ex6120_firmware 1.0.0.64
  • netgear ex6130_firmware 1.0.0.44

Is CVE-2021-45670 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

0.43% chance of exploitation in the next 30 days, higher than 37% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.1 6.5 CVSS:3.1/AC:H/AV:A/A:L/C:L/I:H/PR:H/S:C/UI:R
CNA 3.1 6.5 CVSS:3.1/AV:A/AC:H/PR:H/UI:R/S:C/C:L/I:H/A:L
NVD 3.1 4.8 CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
NVD 2.0 3.5 AV:N/AC:M/Au:S/C:N/I:P/A:N

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation

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.