D-Link DGS-3420 System Information Settings cross site scripting

published 2026-04-26 6mo ago modified 2026-10-26 16d ago also EUVD-2026-25701

cvss: 4.5; 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 46%
public exploits: 0; none known

A vulnerability was determined in D-Link DGS-3420 1.50.018. This issue affects some unknown processing of the component System Information Settings Page. This manipulation of the argument System Name causes cross site scripting. Remote exploitation of the attack is possible. The exploit has been publicly disclosed and may be utilized.

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CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 6mo ago (2026-04-27)

Exploit prediction

0.56% chance of exploitation in the next 30 days, higher than 46% of all scored CVEs (FIRST EPSS, 2026-11-11).

CVSS scores

assigned by	version	score	vector
CNA	4.0	6.8	CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:P
CNA	3.1	4.5	CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:H/A:N/E:P/RL:X/RC:R
CNA	3.0	4.5	CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:H/A:N/E:P/RL:X/RC:R
CNA	2.0	6.1	AV:N/AC:L/Au:M/C:N/I:C/A:N/E:POC/RL:ND/RC:UR
CNA	4.0	5.4	CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CNA	3.1	4.5	CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:H/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
CNA	2.0	6.1	AV:N/AC:L/Au:M/C:N/I:C/A:N

Affected products

D-Link DGS-3420

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation
CWE-94 Improper Control of Generation of Code

References

vuldb.com /vuln/359606
vdb-entry, technical-description, third-party-advisory
vuldb.com /vuln/359606/cti
signature, permissions-required, vdb-entry
vuldb.com /submit/797877
third-party-advisory, vdb-entry
dlink.com /
product

Sources

CVE List CVE-2026-7026
NVD CVE-2026-7026

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