CVE-2015-2051 D-Link CVE debrief

Who should care

Security and network teams responsible for any remaining D-Link DIR-645 routers, especially in small-office, branch, or home-office environments where the device may still provide core connectivity.

Technical summary

CISA’s KEV entry identifies CVE-2015-2051 as a remote code execution vulnerability affecting the D-Link DIR-645 Router. The KEV metadata marks the product as end-of-life and directs defenders to disconnect it if still in use. The supplied official corpus does not include a vendor patch bulletin or detailed exploit mechanics, so defensive action should focus on inventory, isolation, and replacement.

Defensive priority

Urgent. A KEV-listed remote code execution issue on an end-of-life router should be treated as an immediate remove-or-replace item.

Recommended defensive actions

• Inventory the environment for any D-Link DIR-645 routers and verify whether they are still reachable or in service.
• Disconnect the device if it is still deployed, matching CISA’s KEV guidance for this end-of-life product.
• Replace the DIR-645 with a supported router or gateway that receives security updates.
• If short-term operation cannot be avoided, isolate the device on a tightly controlled network segment and limit administrative access until it can be removed.

Evidence notes

The supplied official sources identify the vulnerability as CVE-2015-2051 and place it in CISA’s Known Exploited Vulnerabilities catalog with dateAdded 2022-02-10 and dueDate 2022-08-10. The KEV note states that the impacted product is end-of-life and should be disconnected if still in use. Official reference links provided in the corpus include the CVE.org record, the NVD detail page, the CISA KEV catalog, and the CISA source feed item.

Official resources