CVE-2009-3711

CVE-2009-3711 is a critical-severity vulnerability in Jasper Httpdx with a CVSS 2.0 base score of 10.0. Its EPSS exploit-prediction score of 64% places it in the 99th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-119.

Key facts

Description

Stack-based buffer overflow in the h_handlepeer function in http.cpp in httpdx 1.4, and possibly 1.4.3, allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a long HTTP GET request.

Frequently asked questions

What is CVE-2009-3711?
Stack-based buffer overflow in the h_handlepeer function in http.cpp in httpdx 1.4, and possibly 1.4.3, allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a long HTTP GET request.
How severe is CVE-2009-3711?
CVE-2009-3711 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2009-3711 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 64% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-3711?
CVE-2009-3711 primarily affects Jasper Httpdx. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2009-3711?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2009-3711 published?
CVE-2009-3711 was published on 2009-10-16 and last updated on 2026-06-16.

References

Affected products (2)

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