How severe is CVE-2009-2300?

CVE-2009-2300 has a CVSS 2.0 base score of 10.0, rated critical severity.

Is CVE-2009-2300 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-2300?

CVE-2009-2300 affects Phion Airlock Web Application Firewall. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2009-2300?

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-2009-2300 published?

CVE-2009-2300 was published on 2009-07-02 and last updated on 2026-06-16.

CVE-2009-2300

CVE-2009-2300 is a critical-severity vulnerability in Phion Airlock Web Application Firewall with a CVSS 2.0 base score of 10.0. 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-399.

Key facts

Severity: Critical (CVSS 2.0 base score 10.0)
EPSS exploit prediction: 3% (85th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-399
Affected product: Phion Airlock Web Application Firewall
Published: 2009-07-02
Last modified: 2026-06-16

Description

The management interface in the phion airlock Web Application Firewall (WAF) 4.1-10.41 does not properly handle CGI requests that specify large width and height parameters for an image, which allows remote attackers to execute arbitrary commands or cause a denial of service (resource consumption) via a crafted request.

Frequently asked questions

What is CVE-2009-2300?: The management interface in the phion airlock Web Application Firewall (WAF) 4.1-10.41 does not properly handle CGI requests that specify large width and height parameters for an image, which allows remote attackers to execute arbitrary commands or cause a denial of service (resource consumption) via a crafted request.
How severe is CVE-2009-2300?: CVE-2009-2300 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2009-2300 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-2300?: CVE-2009-2300 affects Phion Airlock Web Application Firewall. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2009-2300?: 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-2009-2300 published?: CVE-2009-2300 was published on 2009-07-02 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:phion:airlock_web_application_firewall:4.1-10.41:*:*:*:*:*:*:*

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