CVE-2026-118579
D-Link DIR-505 Web Management CGI secmark1524.cgi main backdoor
- State
- Published
- Severity
- 9.3 Critical
- Published
- Oct 28, 2026
- Updated
- Oct 29, 2026
- Reserved
- Oct 28, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 9.3 Critical | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P | VulDB |
| 3.1 | 9.8 Critical | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R | VulDB |
| 3.0 | 9.8 Critical | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R | VulDB |
| 2.0 | 10.0 High | AV:N/AC:L/Au:N/C:C/I:C/A:C/E:POC/RL:ND/RC:UR | VulDB |
Weaknesses
- CWE-912 Backdoor
Affected Products
| Product | Versions |
|---|---|
DIR-505D-Link |
|
References
- VDB-428018 | D-Link DIR-505 Web Management CGI secmark1524.cgi main backdoorvdb-entrytechnical-description
- VDB-428018 | CTI Indicators (IOB, IOC, TTP, IOA)signaturepermissions-required
- CVE-2026-118579 | CVE Analysis and Reportthird-party-advisory
- Submit #1025351 | D-Link DIR-505 1.10B02 Backdoorthird-party-advisory
- https://github.com/Walnut1337/DIR-505_backdoor/tree/main/pocexploit
- https://www.dlink.com/product
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