Certain NETGEAR devices are affected by stored XSS.

published 2020-04-20 6y ago modified 2026-06-17 4mo ago also EUVD-2017-9922

cvss: 7.8; 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

Certain NETGEAR devices are affected by stored XSS. This affects M4300-28G before 12.0.2.15, M4300-52G before 12.0.2.15, M4300-28G-POE+ before 12.0.2.15, M4300-52G-POE+ before 12.0.2.15, M4300-8X8F before 12.0.2.15, M4300-12X12F before 12.0.2.15, M4300-24X24F before 12.0.2.15, M4300-24X before 12.0.2.15, M4300-48X before 12.0.2.15, and M4200 before 12.0.2.15.

Patch / fix

fixed in 10

netgear m4300-28g_firmware 12.0.2.15
netgear m4300-52g_firmware 12.0.2.15
netgear m4300-28g-poe+_firmware 12.0.2.15
netgear m4300-52g-poe+_firmware 12.0.2.15
netgear m4300-8x8f_firmware 12.0.2.15
netgear m4300-12x12f_firmware 12.0.2.15
netgear m4300-24x24f_firmware 12.0.2.15
netgear m4300-24x_firmware 12.0.2.15
netgear m4300-48x_firmware 12.0.2.15
netgear m4200_firmware 12.0.2.15

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Exploit prediction

0.64% 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	7.8	CVSS:3.0/AC:L/AV:L/A:H/C:H/I:H/PR:L/S:U/UI: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
CNA	3.0	7.8	CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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

kb.netgear.com /000049031/Security-Advisory-for-Vertical-Privilege-Escalation-on-Some-Fully-Managed-Switches-PSV-2017-1952
vendor-advisory

Sources

CVE List CVE-2017-18831
NVD CVE-2017-18831

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