CVE-2009-5111
GoAhead
- Published
- 27 December 2011
- Last modified
- 16 June 2026
- CVSS
- 5.0 v2.0
- Severity
- medium
- EPSS
- 1.1% (64th pct)
- CISA KEV
- Not listed
- NVD status
- Modified
- Weaknesses
- CWE-399
AV:N/AC:L/Au:N/C:N/I:N/A:P
Description
GoAhead WebServer allows remote attackers to cause a denial of service (daemon outage) via partial HTTP requests, as demonstrated by Slowloris.
Exploitation
Not listed in the CISA Known Exploited Vulnerabilities catalogue as of 2026.09.04. That is an absence of confirmed public exploitation, not evidence that exploitation has not occurred. EPSS models a 1.1% probability of exploitation activity in the next 30 days.
Affected products
| Product | Vendor | Type | Versions named |
|---|---|---|---|
| Goahead Webserver | GoAhead | unknown | 2.0, 2.1, 2.1.1, 2.1.2 +5 |
References
Record assembled from NVD, CISA KEV 2026.09.04 and FIRST EPSS 2026-09-04. Affected products are those NVD's CPE configuration names that fall inside this site's scope; a CVE may affect products outside it.