CVE-2009-3586
CVE-2009-3586 is a high-severity vulnerability in Frank Yaul Corehttp with a CVSS 2.0 base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-189.
Key facts
- Severity: High (CVSS 2.0 base score 7.5)
- EPSS exploit prediction: 6% (93rd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-189
- Affected product: Frank Yaul Corehttp
- Published:
- Last modified:
Description
Off-by-one error in src/http.c in CoreHTTP 0.5.3.1 and earlier allows remote attackers to cause a denial of service or possibly execute arbitrary code via an HTTP request with a long first line that triggers a buffer overflow. NOTE: this vulnerability reportedly exists because of an incorrect fix for CVE-2007-4060.
Frequently asked questions
- What is CVE-2009-3586?
- Off-by-one error in src/http.c in CoreHTTP 0.5.3.1 and earlier allows remote attackers to cause a denial of service or possibly execute arbitrary code via an HTTP request with a long first line that triggers a buffer overflow. NOTE: this vulnerability reportedly exists because of an incorrect fix for CVE-2007-4060.
- How severe is CVE-2009-3586?
- CVE-2009-3586 has a CVSS 2.0 base score of 7.5, rated high severity.
- Is CVE-2009-3586 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2009-3586?
- CVE-2009-3586 affects Frank Yaul Corehttp. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2009-3586?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2009-3586 published?
- CVE-2009-3586 was published on 2009-12-08 and last updated on 2026-06-16.
References
- http://census-labs.com/media/corex.txt
- http://census-labs.com/news/2009/12/02/corehttp-web-server/
- http://www.securityfocus.com/archive/1/508272/100/0/threaded
Affected products (1)
- cpe:2.3:a:frank_yaul:corehttp:0.5.3.1:*:*:*:*:*:*:*
More vulnerabilities in Frank Yaul Corehttp
- CVE-2007-4060 — Critical (CVSS 9.0): Multiple buffer overflows in the HttpSprockMake function in http.c in Frank Yaul corehttp 0.5.3alpha allow remote…
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