VulnTideExploited vulnerabilities, by vendor. Data as of .
Not in CISA KEVPublished CVSS 9.3 criticalEPSS 0.8% probability of exploitation in 30 days
D-Link

CVE-2026-118579: D-Link DIR-505 Web Management CGI secmark1524.cgi main backdoor

Is it exploited?

Not on CISA's list. CISA has not added it to the Known Exploited Vulnerabilities catalog as of . If CISA adds it, this page shows it as known exploited.

How likely is exploitation in the next 30 days?
0.8%

EPSS score, percentile 56.1 of all scored records. A probability estimated by FIRST, not a report of exploitation.

How severe?
9.3 Critical

CVSS v4.0 base score, given by the CNA

What should I do?

CISA has set no required action, because the vulnerability is not in KEV.

The CVE record links no vendor advisory, patch or mitigation.

Which versions are affected?

Affected

  • 1.10B02

Versions by product

Source: CISA KEV 2026.10.29, as of ; FIRST EPSS, as of ; CVE List, as of . About the data.

What to do

Advisories and patches

The CVE record links no vendor advisory, patch or mitigation.

This summary is based on the CVE record as of . Check the vendor's advisory before you act: affected versions and fixes can change.

Affected products and versions

As listed in the CVE record.

D-Link DIR-505
StatusVersions
Affected1.10B02

Source: CVE List, as of . About the data.

About this vulnerability

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.

Summary: CVE record, as of .

  • CISA has not added CVE-2026-118579 to its Known Exploited Vulnerabilities (KEV) catalog, as of 29 Oct 2026.
  • The CVE record was published on 28 Oct 2026.
  • The CVE record carries a CVSS v4.0 base score of 9.3 (Critical), given by its CNA.
  • FIRST's EPSS model puts the probability of exploitation in the next 30 days at 0.8% (percentile 56.1), as of 29 Oct 2026. EPSS is a statistical estimate, not a report of exploitation.

Source: CISA KEV 2026.10.29, as of ; CVE List, as of ; FIRST EPSS, as of . About the data.

Description

D-Link DIR-505 Web Management CGI secmark1524.cgi main backdoor

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.

Source: CVE List, as of . About the data.

Weakness

CWE-912

CWE and CAPEC are maintained by MITRE; the entries are those named in the CVE record.

Timeline

DateEvent
CVE record published

References

6

Known exploited D-Link vulnerabilities

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  • CVE-2020-25078: D-Link DCS-2530L and DCS-2670L Devices Unspecified Vulnerability (added )
  • CVE-2020-25079: D-Link DCS-2530L and DCS-2670L Command Injection Vulnerability (added )
  • CVE-2022-40799: D-Link DNR-322L Download of Code Without Integrity Check Vulnerability (added )