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Discontinued D-Link DIR-846 routers are affected by code execution flaws. Replace them!

Vulnerabilities mentionedAll →

CVEVulnerabilityCVSSEPSSFlagsAffectedExposurePublished
CVE-2024-0769
Unauthenticated Path Traversal in D-Link DIR-859 Router (hedwig.cgi)

D-Link DIR-859 routers running firmware 1.06B01 contain a critical path traversal flaw (CWE-22, CVSS 9.8) in the HTTP POST request handler of /hedwig.cgi. An unauthenticated remote attacker can manipulate the 'service' parameter with a directory-traversal path (e.g., ../../../../htdocs/webinc/getcfg/DHCPS6.BRIDGE-1.xml) to access files outside the intended location. Given the critical rating with high confidentiality, integrity, and availability impacts, successful exploitation can expose sensitive router configuration (potentially including credentials) and lead to full device compromise. Only DIR-859 units still in service are affected: D-Link has confirmed the product is end-of-life, so no patched firmware is available. Exploitation is now in the wild — CISA added the flaw to its Known Exploited Vulnerabilities catalog on 2025-06-25, EPSS puts 30-day exploitation probability at 82.7%, a public proof-of-concept exists, and news reports indicate threat actors are actively exploiting D-Link DIR-series flaws.

Do: Because the DIR-859 is end-of-life, there is no firmware fix — replace the router with a currently supported model, as the vendor recommends. If replacement is not immediate, minimize exposure by disabling remote/WAN management access to the device and any port-forwarding or UPnP rules that expose the web interface, and monitor for exploitation attempts against /hedwig.cgi. Federal agencies must follow CISA BOD 22-01 and remediate by the assigned KEV due date.

9.883% KEV PoC
  • D-Link DIR-859 Router (DIR-859 firmware) 1.06B01 (confirmed affected; product is end-of-life with no fixed release, so all in-service DIR-859 units should be treated as affected)
Unknown; plausibly tens of thousands of DIR-859 units remain deployed, with an internet-exposed subset likely in the thousands
CVE-2024-41622
+3 in the same advisory: …44342 …44341 …44340
D-Link DIR-846W A1 FW100A43 was discovered to contain a remote command execution (RCE) vulnerability via the tomography_ping_address parameter in /HNAP1/ interf

D-Link DIR-846W A1 FW100A43 was discovered to contain a remote command execution (RCE) vulnerability via the tomography_ping_address parameter in /HNAP1/ interface.

NVD description · AI analysis pending
9.8
group max
2%
  • dlink dir-846w firmware
Full article287 words · extracted from securityaffairs.com · click to collapse

Pierluigi Paganini September 04, 2024

D-Link warns of multiple remote code execution vulnerabilities impacting its discontinued DIR-846 router series.

Networking hardware vendor D-Link wars of multiple remote code execution (RCE) vulnerabilities in its discontinued DIR-846 router model.

The vulnerabilities CVE-2024-44341 and CVE-2024-44342 (CVSS score of 9.8) are two OS command injection issues. A remote attacker could exploit them to execute arbitrary code on vulnerable devices.

“D-Link DIR-846W A1 FW100A43 was discovered to contain a remote command execution (RCE) vulnerability (CVE-2024-44341) via the lan(0)_dhcps_staticlist parameter. This vulnerability is exploited via a crafted POST request.” reads the advisory.

“D-Link DIR-846W Firmware A1 FW100A43 was discovered to contain a remote command execution (RCE) vulnerability (CVE-2024-44342) via the wl(0).(0)_ssid parameter.”

The vendor also addressed a remote command execution (RCE) vulnerability, tracked as CVE-2024-41622 (CVSS score of 8.8), that resides in the tomography_ping_address parameter in /HNAP1/ interface.

The fourth issue addressed by the company is a high-severity RCE vulnerability, tracked as CVE-2024-44340 (with a CVSS score of 8.8), which can be exploited by an authenticated attacker.

The security researcher Yali-1002 discovered the above vulnerabilities.

The vendor recommends to retire and replace devices that have reached their End of Life (‘EOL’) /End of Service Life (‘EOS’) Life-Cycle.

Routers are a privileged target for threat actors and botnet operators. In January, researchers from cybersecurity firm GreyNoise spotted exploitation attempts for the critical vulnerability CVE-2024-0769 (CVSS score 9.8) impacting all D-Link DIR-859 WiFi routers.

The vendor stated that the DIR-859 family of routers has reached their End of Life (“EOL”)/End of Service Life (“EOS”) life-cycle, and for this reason, the flaw will likely not be addressed.

Pierluigi Paganini

Follow me on Twitter: @securityaffairs and Facebook and Mastodon

(Security Affairs – hacking, IoT)



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