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Vulnerabilities

Vulnerability · CVE-2009-2765

DD-WRT DD-WRT Improper Input Validation

Published Jun 13, 2019 · catalog updated Jun 13, 2019 · DD-WRT DD-WRT

Patch now

CVE-2009-2765 is in the CISA known-exploited catalog. Confirm DD-WRT DD-WRT against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Severity
Unknown—
Known exploitation
CISA KEV and VulnCheck KEV
EPSS
82.50%
Remediation
Remediation guidance
Affected products
vendor DD-WRT DD-WRT

httpd.c in httpd in the management GUI in DD-WRT 24 sp1, and other versions before build 12533, allows remote attackers to execute arbitrary commands via shell metacharacters in a request to a cgi-bin/ URI.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor DD-WRT DD-WRTversion unspecified

How to fix CVE-2009-2765

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2009-2765 is in the CISA known-exploited catalog. Confirm DD-WRT DD-WRT against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Which versions are affected?

Affected version ranges are not on this record. Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

What should an analyst verify?

No weakness class is stored. EPSS 82.50%. The CISA KEV listing is the exploitation evidence. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Jun 13, 2019 · VulnCheck KEV

    Detected

    httpd.c in httpd in the management GUI in DD-WRT 24 sp1, and other versions before build 12533, allows remote attackers to execute arbitrary commands via shell metacharacters in a request to a cgi-bin/ URI.

  2. Jun 13, 2019 · CISA KEV

    Known exploited

    Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

Sources

  • CVE.orgVulnerability recordCVE-2009-2765

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2009-2765

    30-day exploitation probability 82.5%

    first.org
  • VulnCheck KEVConfirmed exploitationCVE-2009-2765

    httpd.c in httpd in the management GUI in DD-WRT 24 sp1, and other versions before build 12533, allows remote attackers to execute arbitrary commands via shell metacharacters in a request to a cgi-bin/ URI.

    vulncheck.com

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.