CVE-2026-118579 - D-Link DIR‑505 Web Management CGI secmark1524.cgi 主程式後門漏洞

A weakness has been identified in D-Link DIR-505 1.10B02. The impacted element is the function main of the file /secmark1524.cgi of the component Web Management CGI. This manipulation of the argument accu/pass/code/hash/cmds causes backdoor. The attack is possible to be carried out remotely. The exploit has been made available to the public and could be used for attacks.

Impact

Affected Products

The following products are affected by CVE-2026-118579 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

No affected product recoded yet

The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.

Remote backdoor vulnerability in Web Management CGI. Update firmware to patch.

• Update the firmware to the latest version.
• Disable remote management if not needed.
• Change default credentials immediately.

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2026-118579.

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-118579 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-118579 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-118579 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2026-118579 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

• New CVE Received by [email protected]

  十月. 28, 2026

  Action	Type	Old Value	New Value
  Added	Description		A weakness has been identified in D-Link DIR-505 1.10B02. The impacted element is the function main of the file /secmark1524.cgi of the component Web Management CGI. This manipulation of the argument accu/pass/code/hash/cmds causes backdoor. The attack is possible to be carried out remotely. The exploit has been made available to the public and could be used for attacks.
  Added	CVSS V4.0		AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/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
  Added	CVSS V3.1		AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  Added	CVSS V2		(AV:N/AC:L/Au:N/C:C/I:C/A:C)
  Added	CWE		CWE-912
  Added	Affected		New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/118xxx/CVE-2026-118579.json">CVE-2026-118579</a>
  Added	Reference		https://github.com/Walnut1337/DIR-505_backdoor/tree/main/poc
  Added	Reference		https://vuldb.com/cve/CVE-2026-118579
  Added	Reference		https://vuldb.com/submit/1025351
  Added	Reference		https://vuldb.com/vuln/428018
  Added	Reference		https://vuldb.com/vuln/428018/cti
  Added	Reference		https://www.dlink.com/

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.