Is CVE-2009-4406 being actively exploited?

CVE-2009-4406 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2009-4406?

CVE-2009-4406 has a CVSS 2.0 base score of 4.3 (MEDIUM).

CVE-2009-4406

MEDIUM · CVSS 4.3EPSS 1.1%EU EUVD

Cross-site scripting (XSS) vulnerability in Forms/login1 in American Power Conversion (APC) Switched Rack PDU AP7932 B2, running rpdu 3.3.3 or 3.7.0 on AOS 3.3.4, and possibly other versions, allows remote attackers to inject arbitrary web script or HTML via the login_username parameter.

Key facts

CVSS score: 4.3 (v2.0)
Severity: MEDIUM
CVSS vector: AV:N/AC:M/Au:N/C:N/I:P/A:N
Weakness (CWE): CWE-79
EPSS score: 1.1% (66th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2009-4373)
Published: December 23, 2009
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2009-4373 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.

View on the EU Vulnerability Database

Affected products

apc / aos
apc / ap7932 b2
apc / ap7932 b2 firmware
apc / ap7932 b2 firmware

References

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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