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Vulnerability record · CVE-2009-2256 · published 30 June 2009

CVE-2009-2256: Netgear dg632 improper input validation vulnerability

Netgear · Dg632

The administrative web interface on the Netgear DG632 with firmware 3.4.0_ap allows remote attackers to cause a denial of service (web outage) via an HTTP POST request to cgi-bin/firmwarecfg.

7.8 CVSS 2.0 High EPSS 7.4% · top 5.8% CWE-20 · Improper input validation
7.8CVSS 2.0 base score
7.4%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
10References
16 Jun 2026Last modified by NVD

Description

The administrative web interface on the Netgear DG632 with firmware 3.4.0_ap allows remote attackers to cause a denial of service (web outage) via an HTTP POST request to cgi-bin/firmwarecfg.

AV:N/AC:L/Au:N/C:N/I:N/A:C

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://securitytracker.com/id?1022403
http://www.exploit-db.com/exploits/8964
http://www.securityfocus.com/archive/1/504341/100/0/threaded
http://www.securityfocus.com/archive/1/504345/100/0/threaded
http://www.tomneaves.co.uk/Netgear_DG632_Remote_DoS.txt
http://securitytracker.com/id?1022403
http://www.exploit-db.com/exploits/8964
http://www.securityfocus.com/archive/1/504341/100/0/threaded
http://www.securityfocus.com/archive/1/504345/100/0/threaded
http://www.tomneaves.co.uk/Netgear_DG632_Remote_DoS.txt

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2009-2256), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.