CVE-2026-1744

D-Link DSL-6641K sp_pppoe_user.js doSubmitPPP cross site scripting

4.8 Medium

A vulnerability was found in D-Link DSL-6641K N8.TR069.20131126. Affected by this issue is the function doSubmitPPP of the file sp_pppoe_user.js. The manipulation of the argument Username results in cross site scripting. The attack may be launched remotely. The exploit has been made public and could be used. This vulnerability only affects products that are no longer supported by the maintainer.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: High
User interaction: Passive

What an attacker can affect

Confidentiality: None
Integrity: Low
Availability: None

Exploit likelihood

0.50%Up 0.5 points since Feb 2, 2026

What each source reports

CVE List Score used4.8

D-Link DSL-6641K sp_pppoe_user.js doSubmitPPP cross site scripting

Record: CVE-2026-1744
CVSS 4.0: 4.8 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
CVSS 3.1: 2.4 LowCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R
CVSS 3.0: 2.4 LowCVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R
CVSS 2.0: 3.3 AV:N/AC:L/Au:M/C:N/I:P/A:N/E:POC/RL:ND/RC:UR
Weakness: CWE-79, CWE-94
Updated: 2026-11-02

EUVDEUVD-2026-51524.8

Record: EUVD-2026-5152
CVSS 4.0: 4.8 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
Updated: 2026-11-02

GitHub AdvisoriesGHSA-gm6w-4mw8-hx491.9

A vulnerability was found in D-Link DSL-6641K N8.TR069.20131126. Affected by this issue is the...

Record: GHSA-gm6w-4mw8-hx49
CVSS 4.0: 1.9 LowCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:L/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
CVSS 3.1: 2.4 LowCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:L/A:N
Weakness: CWE-79
Updated: 2026-11-02

NVD1.9

Record: CVE-2026-1744
CVSS 4.0: 1.9 LowCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:L/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
CVSS 3.1: 2.4 LowCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:L/A:N
CVSS 3.1: 4.8 MediumCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
CVSS 2.0: 3.3 LowAV:N/AC:L/Au:M/C:N/I:P/A:N
Weakness: CWE-79, CWE-94
Updated: 2026-11-02

Affected products

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-1744 is a medium vulnerability (CVSS 4.8) in D-link Dsl-6641k, published February 2, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.50%, the 43rd percentile. No source names a fixed version.