Is CVE-2009-3109 being actively exploited?

CVE-2009-3109 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2009-3109?

CVE-2009-3109 has a CVSS 2.0 base score of 9.3 (HIGH).

CVE-2009-3109

HIGH · CVSS 9.3EPSS 3.8%EU EUVD

Unspecified vulnerability in the AClient agent in Symantec Altiris Deployment Solution 6.9.x before 6.9 SP3 Build 430, when key-based authentication is being used between a deployment server and a client, allows remote attackers to bypass authentication and execute arbitrary commands as SYSTEM by spoofing the deployment server and sending "alternate commands" before the handshake is completed.

Key facts

CVSS score: 9.3 (v2.0)
Severity: HIGH
CVSS vector: AV:N/AC:M/Au:N/C:C/I:C/A:C
EPSS score: 3.8% (90th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2009-3092)
Published: September 8, 2009
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2009-3092 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.

View on the EU Vulnerability Database

Affected products

symantec / altiris deployment solution
symantec / altiris deployment solution
symantec / altiris deployment solution

References

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

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