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PatchSiren cyber security CVE debrief

CVE-2017-6205 Dlink CVE debrief

CVE-2017-6205 is a critical D-Link Websmart switch vulnerability that allows unauthenticated command bypass on affected DGS-1510 models. The issue was publicly disclosed on 2017-02-23 and is rated CVSS 9.8, reflecting network-accessible impact with no user interaction required. The safest response is to treat affected switches as urgent patch candidates and verify firmware against the vendor advisory and NVD record.

Vendor
Dlink
Product
CVE-2017-6205
CVSS
CRITICAL 9.8
CISA KEV
Not listed in stored evidence
Original CVE published
2017-02-23
Original CVE updated
2026-05-13
Advisory published
2017-02-23
Advisory updated
2026-05-13

Who should care

Organizations operating D-Link DGS-1510-28XMP, DGS-1510-28X, DGS-1510-52X, DGS-1510-52, DGS-1510-28P, DGS-1510-28, or DGS-1510-20 Websmart devices, especially where firmware may be older than the fixed release. Network, infrastructure, and security teams responsible for edge or core switching should prioritize validation and remediation.

Technical summary

The CVE describes an unauthenticated command bypass in D-Link Websmart devices. NVD lists affected DGS-1510 series firmware as vulnerable up to and including 1.31.b001, while the CVE description supplied here states firmware before 1.31.B003. Both sources indicate that updating firmware is the primary mitigation. The NVD vector is CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H, which aligns with severe remote compromise potential.

Defensive priority

Critical. Because the issue is remotely reachable, requires no privileges, and is scored 9.8, it should be prioritized ahead of routine maintenance. If exposed switches are running an affected firmware branch, remediation should be treated as urgent.

Recommended defensive actions

  • Identify all D-Link DGS-1510 Websmart devices in the environment and confirm exact hardware model and firmware version.
  • Compare installed firmware against the vendor advisory and NVD record; treat versions older than the fixed release as needing immediate attention.
  • Apply the vendor-recommended firmware update from the D-Link advisory reference.
  • Restrict management-plane access to trusted administrative networks until patching is complete.
  • Review switch administration logs and configuration changes for unexpected activity.
  • If patching cannot be completed immediately, compensate with network isolation and tighter access controls around management interfaces.

Evidence notes

This debrief is based only on the supplied CVE record, NVD metadata, and the referenced D-Link advisory. The public record shows CVE publication on 2017-02-23 and modification on 2026-05-13. NVD marks the issue as Modified and lists CVSS 9.8 with a network-based, no-authentication vector. The vendor advisory reference is the primary mitigation source in the supplied corpus. No KEV listing was supplied.

Official resources

Publicly disclosed on 2017-02-23. The CVE record was later modified on 2026-05-13. No Known Exploited Vulnerabilities (KEV) entry was supplied.