Certain NETGEAR devices are affected by stored XSS.

published 2021-12-26 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-32443

cvss: 5.2; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.6%; EPSS 0.6% chance of exploitation in 30 days, percentile 49%
public exploits: 0; none known

Certain NETGEAR devices are affected by stored XSS. This affects GS108Tv2 before 5.4.2.36 and GS110TPv2 before 5.4.2.36.

Patch / fix

fixed in 2 links 1

netgear gs108t_firmware 5.4.2.36
netgear gs110tp_firmware 5.4.2.36

kb.netgear.com/000064448/Security-Advisory-for-Stored-Cross-Site-Scriptin… advisory

Exploit prediction

0.62% chance of exploitation in the next 30 days, higher than 49% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

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

kb.netgear.com /000064448/Security-Advisory-for-Stored-Cross-Site-Scripting-on-Some-Smart-Managed-Pro-Switches-PSV-2019-0191
patch, vendor-advisory

Sources

CVE List CVE-2021-45677
NVD CVE-2021-45677

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.

Summary