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.
CVE-2009-2765
Score elevated to 9.0 because EPSS predicts 90% probability of exploitation within the next 30 days (top 0.4% of all CVEs). Confidence: see factors.
- High exploitation likelihood — EPSS 83%
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- —
- EG Score
- 9.0(low)
- EPSS
- 99.6%
- KEV
- Not listed
Published
August 14, 2009
Last Modified
April 23, 2026
References (18)
- cve@mitrehttp://isc.sans.org/diary.html?storyid=6853
- cve@mitrehttp://metasploit.com/svn/framework3/trunk/modules/exploits/linux/http/ddwrt_cgibin_exec.rb
- cve@mitrehttp://securitytracker.com/id?1022596
- cve@mitrehttp://www.dd-wrt.com/
- cve@mitrehttp://www.dd-wrt.com/phpBB2/viewtopic.php?t=55173
- cve@mitrehttp://www.exploit-db.com/exploits/9209
- cve@mitrehttp://www.osvdb.org/55990
- cve@mitrehttp://www.securityfocus.com/bid/35742
- cve@mitrehttp://www.theregister.co.uk/2009/07/21/critical_ddwrt_router_vuln/
- af854a3a-2127-422b-91ae-364da2661108http://isc.sans.org/diary.html?storyid=6853
- af854a3a-2127-422b-91ae-364da2661108http://metasploit.com/svn/framework3/trunk/modules/exploits/linux/http/ddwrt_cgibin_exec.rb
- af854a3a-2127-422b-91ae-364da2661108http://securitytracker.com/id?1022596
- af854a3a-2127-422b-91ae-364da2661108http://www.dd-wrt.com/
- af854a3a-2127-422b-91ae-364da2661108http://www.dd-wrt.com/phpBB2/viewtopic.php?t=55173
- af854a3a-2127-422b-91ae-364da2661108http://www.exploit-db.com/exploits/9209
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 2× in last 7d / 20× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-04 06:27 UTCEPSS rescore
- 2026-07-01 15:02 UTCEPSS rescore
- 2026-06-28 04:52 UTCEPSS rescore
- 2026-06-28 04:52 UTCEPSS rescore
- 2026-06-25 13:46 UTCEPSS rescore
- 2026-06-25 13:46 UTCEPSS rescore
- 2026-06-23 21:29 UTCEPSS rescore
- 2026-06-23 21:29 UTCEPSS rescore
- 2026-06-21 14:53 UTCEPSS rescore
- 2026-06-21 01:56 UTCEPSS rescore
- 2026-06-21 01:56 UTCEPSS rescore
- 2026-06-16 17:49 UTCEPSS rescore
- 2026-06-16 17:49 UTCEPSS rescore
- 2026-06-15 17:44 UTCEPSS rescore
- 2026-06-14 23:14 UTCEPSS rescore
- 2026-06-14 23:14 UTCEPSS rescore
- 2026-06-13 22:57 UTCEPSS rescore
- 2026-06-12 23:08 UTCEPSS rescore
- 2026-06-12 23:08 UTCEPSS rescore
- 2026-06-10 22:14 UTCEPSS rescore
- 2026-06-05 22:44 UTCEPSS rescore
- 2026-06-05 22:44 UTCEPSS rescore
- 2026-06-05 06:07 UTCEPSS rescore
- 2026-06-04 13:09 UTCEPSS rescore
- 2026-06-04 13:09 UTCEPSS rescore
Show 20 moreShow fewer
- 2026-06-02 20:10 UTCEPSS rescore
- 2026-06-02 20:10 UTCEPSS rescore
- 2026-06-01 13:49 UTCEPSS rescore
- 2026-06-01 13:49 UTCEPSS rescore
- 2026-05-31 22:28 UTCEPSS rescore
- 2026-05-31 22:28 UTCEPSS rescore
- 2026-05-31 00:13 UTCEPSS rescore
- 2026-05-31 00:13 UTCEPSS rescore
- 2026-05-30 15:47 UTCEG score recompute
- 2026-05-30 15:47 UTCGHSA enrichment
- 2026-05-28 13:42 UTCEPSS rescore
- 2026-05-28 13:42 UTCEPSS rescore
- 2026-05-28 13:42 UTCEPSS rescore
- 2026-05-22 21:15 UTCEPSS rescore
- 2026-05-22 21:15 UTCEPSS rescore
- 2026-05-20 22:37 UTCEPSS rescore
- 2026-05-20 22:37 UTCEPSS rescore
- 2026-05-20 11:21 UTCEPSS rescore
- 2026-05-20 11:20 UTCEPSS rescore
- 2026-05-18 21:29 UTCEPSS rescore
Publicly available exploits
(4 references)Working exploit code is in the public domain (1 Metasploit module) (3 Exploit-DB entries). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.
- Exploit-DBEDB-16856✓ verifiedFirst seen Jul 7, 2010
DD-WRT HTTPd Daemon/Service - Arbitrary Command Execution (Metasploit)
Open source ↗ - Exploit-DBEDB-9209✓ verifiedFirst seen Jul 20, 2009
DD-WRT HTTPd Daemon/Service - Remote Command Execution
Open source ↗ - Exploit-DBEDB-10030✓ verifiedFirst seen Jul 20, 2009
DD-WRT HTTP v24-SP1 - Command Injection
Open source ↗ - Metasploitexploit/linux/http/ddwrt_cgibin_exec✓ verifiedFirst seen Jul 20, 2009
DD-WRT HTTP Daemon Arbitrary Command Execution
Open source ↗
Related CVEs(same CWE)
Same CWE
10 shownCWE-20
- CVE-2002-2444EG 9.8CRITICAL
- CVE-2005-0116NVD 0.0EG 9.0EPSS 99%NONE
- CVE-2002-1359NVD 0.0EG 9.0EPSS 100%NONE
- CVE-2000-0380NVD 0.0EG 9.0EPSS 98%NONE
- CVE-2000-0258EG 7.5EPSS 97%HIGH
- CVE-2004-2771EG 0.0EPSS 93%NONE
- CVE-2002-2443EG 0.0EPSS 93%NONE
- CVE-2002-2433EG 0.0NONE
- CVE-2003-1569EG 0.0NONE
- CVE-2003-1568EG 0.0NONE
Frequently asked(4)
What is CVE-2009-2765?
When was CVE-2009-2765 disclosed?
Is CVE-2009-2765 actively exploited?
How do I remediate CVE-2009-2765?
Dependency Blast Radius
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