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Fencer Intel
medium 5.2

CVE-2017-18866 json

Certain NETGEAR devices are affected by stored XSS.

published 6y ago modified 4mo ago also EUVD-2017-9957

cvss
5.2
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 51%
public exploits
0
none known

Summary

Certain NETGEAR devices are affected by stored XSS. This affects R9000 before 1.0.2.40, R6100 before 1.0.1.1, 6R7500 before 1.0.0.110, R7500v2 before 1.0.3.20, R7800 before 1.0.2.36, WNDR4300v2 before 1.0.0.48, and WNR2000v5 before 1.0.0.58.

Patch / fix

  • netgear 6r7500_firmware 1.0.0.110
  • netgear r6100_firmware 1.0.1.1
  • netgear r7500_firmware 1.0.3.20
  • netgear r7800_firmware 1.0.2.36
  • netgear r9000_firmware 1.0.2.40
  • netgear wndr4300_firmware 1.0.0.48
  • netgear wnr2000_firmware 1.0.0.58

Is CVE-2017-18866 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

0.65% chance of exploitation in the next 30 days, higher than 51% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.0 5.2 CVSS:3.0/AC:L/AV:A/A:N/C:L/I:L/PR:N/S:C/UI:R
NVD 3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CNA 3.0 5.2 CVSS:3.0/AV:A/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD 2.0 4.3 AV:N/AC:M/Au:N/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.