CVE-2009-2299

CVE-2009-2299 is a medium-severity vulnerability in Hyperguard Web Application Firewall Project Hyperguard Web Application Firewall with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

The Artofdefence Hyperguard Web Application Firewall (WAF) module before 2.5.5-11635, 3.0 before 3.0.3-11636, and 3.1 before 3.1.1-11637, a module for the Apache HTTP Server, allows remote attackers to cause a denial of service (memory consumption) via an HTTP request with a large Content-Length value but no POST data.

Frequently asked questions

What is CVE-2009-2299?
The Artofdefence Hyperguard Web Application Firewall (WAF) module before 2.5.5-11635, 3.0 before 3.0.3-11636, and 3.1 before 3.1.1-11637, a module for the Apache HTTP Server, allows remote attackers to cause a denial of service (memory consumption) via an HTTP request with a large Content-Length value but no POST data.
How severe is CVE-2009-2299?
CVE-2009-2299 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2009-2299 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-2299?
CVE-2009-2299 affects Hyperguard Web Application Firewall Project Hyperguard Web Application Firewall. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2009-2299?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2009-2299 published?
CVE-2009-2299 was published on 2009-07-02 and last updated on 2026-06-16.

References

Affected products (1)

Threat intelligence

Threat-intel indicators referencing this CVE: