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CVE Record

CVE-2026-1705: D-Link DSL-6641K Web ad_virtual_server_vdsl cross site scripting

A vulnerability was detected in D-Link DSL-6641K N8.TR069.20131126. Affected by this issue is the function ad_virtual_server_vdsl of the component Web Interface. Performing a manipulation of the argument Name results in cross site scripting. It is possible to initiate the attack remotely. The exploit is now public and may be used.

MediumCVSS 4.8Not KEV-listedUpdated
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2026-1705 is a cross-site scripting issue in the D-Link DSL-6641K router web interface. An attacker with high privileges could manipulate a configuration name field and potentially affect an administrator who views it. Public exploit information exists, but the provided sources do not show confirmed active exploitation.

Executive priority

Treat as a targeted device-risk issue, not an enterprise-wide emergency. Prioritize if affected routers manage sensitive networks, have exposed administration, or are shared by multiple administrators.

Technical view

The issue affects D-Link DSL-6641K firmware N8.TR069.20131126 in the Web Interface function ad_virtual_server_vdsl. Manipulation of the Name argument can trigger XSS. CVSS v4.0 is 4.8 with network attack vector, low complexity, high privileges required, and user interaction present. CWE-79 and CWE-94 are listed.

Likely exposure

Exposure is limited to organizations using D-Link DSL-6641K devices running N8.TR069.20131126, especially where the management interface is reachable by untrusted networks or shared administrators.

Exploitation context

The source bundle says exploitation can be initiated remotely and that exploit details are public. However, KEV is false and no cited source confirms active exploitation in the wild.

Researcher notes

Evidence is sufficient for affected product, version, component, parameter, and CVSS. Remediation details are incomplete in the provided sources; no official patch version is named. Avoid assuming broader D-Link model impact.

Mitigation direction

  • Inventory D-Link DSL-6641K devices and confirm firmware version.
  • Restrict router web management access to trusted administrative networks.
  • Avoid exposing the management interface to the public internet.
  • Review D-Link guidance for firmware updates or official mitigations.
  • Limit administrative accounts and remove unnecessary privileged access.

Validation and detection

  • Identify devices reporting D-Link DSL-6641K firmware N8.TR069.20131126.
  • Confirm whether the web interface is reachable from untrusted networks.
  • Review administrative changes involving virtual server configuration names.
  • Check vendor and VulDB references for updated remediation details.
  • Monitor for suspicious authenticated activity against the router web interface.
Prepared
Confidence
medium
Sources
7

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · medium confidence lookup

CWE-79: User-session and phishing behavior lookup

Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
cwe · medium confidence lookup

CWE-94: Code execution behavior lookup

Code execution and unsafe deserialization weaknesses often justify reviewing execution behavior and process telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2026-1705 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Medium
CVSS
4.8 (4.0)
Known Exploited
No
Published

Vector: CVSS: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

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
6Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
4.8CVSS 4.0MediumCVSS: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——Primary CVE score

Vulnerability scoring details

Base CVSS 4.0 score

4.8Medium
CVSS 4.0 vector shape for CVE-2026-1705Attack VectorAttack ComplexityAttack RequirementsPrivileges RequiredUser InteractionVS ConfidentialityVS IntegrityVS AvailabilitySS ConfidentialitySS IntegritySS Availability

Vector: CVSS: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

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Attack Requirements
NonePresent
Privileges Required
NoneLowHigh
User Interaction
NonePassiveActive
VS Confidentiality
HighLowNone
VS Integrity
HighLowNone
VS Availability
HighLowNone
SS Confidentiality
HighLowNone
SS Integrity
HighLowNone
SS Availability
HighLowNone
Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
D-LinkDSL-6641KN8.TR069.20131126Listed
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-79 · source CWE mapping

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.

CWE-94 · source CWE mapping

Improper Control of Generation of Code ('Code Injection')

Improper Control of Generation of Code ('Code Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.