Is CVE-2009-1156 being actively exploited?

CVE-2009-1156 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2009-1156?

CVE-2009-1156 has a CVSS 2.0 base score of 5.7 (MEDIUM).

CVE-2009-1156

MEDIUM · CVSS 5.7EPSS 0.7%EU EUVD

Unspecified vulnerability on Cisco Adaptive Security Appliances (ASA) 5500 Series devices 8.0 before 8.0(4)25 and 8.1 before 8.1(2)15, when an SSL VPN or ASDM access is configured, allows remote attackers to cause a denial of service (device reload) via a crafted (1) SSL or (2) HTTP packet.

Key facts

CVSS score: 5.7 (v2.0)
Severity: MEDIUM
CVSS vector: AV:A/AC:M/Au:N/C:N/I:N/A:C
EPSS score: 0.7% (55th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2009-1156)
Published: April 9, 2009
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2009-1156 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.

View on the EU Vulnerability Database

Affected products

cisco / adaptive security appliance 5500
cisco / adaptive security appliance 5500
cisco / pix
cisco / pix

References

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

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