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Fencer Vulns
medium 4.2

CVE-2021-38537 json

Certain NETGEAR devices are affected by stored XSS.

published 2021-08-10 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-24987

cvss
4.2
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 29%
public exploits
0
none known

Summary

Certain NETGEAR devices are affected by stored XSS. This affects D6200 before 1.1.00.40, D7000 before 1.0.1.78, R6020 before 1.0.0.48, R6080 before 1.0.0.48, R6120 before 1.0.0.66, R6260 before 1.1.0.78, R6700v2 before 1.2.0.76, R6800 before 1.2.0.76, R6900v2 before 1.2.0.76, R6850 before 1.1.0.78, R7200 before 1.2.0.76, R7350 before 1.2.0.76, R7400 before 1.2.0.76, R7450 before 1.2.0.76, AC2100 before 1.2.0.76, AC2400 before 1.2.0.76, AC2600 before 1.2.0.76, and RAX40 before 1.0.3.62.

Patch / fix

  • netgear d6200_firmware 1.1.00.40
  • netgear d7000_firmware 1.0.1.78
  • netgear r6020_firmware 1.0.0.48
  • netgear r6080_firmware 1.0.0.48
  • netgear r6120_firmware 1.0.0.66
  • netgear r6260_firmware 1.1.0.78
  • netgear r6700_firmware 1.2.0.76
  • netgear r6800_firmware 1.2.0.76
  • netgear r6900_firmware 1.2.0.76
  • netgear r6850_firmware 1.1.0.78
  • netgear r7200_firmware 1.2.0.76
  • netgear r7350_firmware 1.2.0.76
  • netgear r7400_firmware 1.2.0.76
  • netgear r7450_firmware 1.2.0.76
  • netgear ac2100_firmware 1.2.0.76
  • netgear ac2400_firmware 1.2.0.76
  • netgear ac2600_firmware 1.2.0.76
  • netgear rax40_firmware 1.0.3.62

Exploit prediction

0.36% chance of exploitation in the next 30 days, higher than 29% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 4.2 CVSS:3.1/AC:L/AV:L/A:N/C:L/I:L/PR:H/S:C/UI:R
CNA 3.1 4.2 CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
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 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.