CVE-2009-1156

CVE-2009-1156 is a medium-severity vulnerability in Cisco Adaptive Security Appliance 5500 with a CVSS 2.0 base score of 5.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

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.

Frequently asked questions

What is CVE-2009-1156?
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.
How severe is CVE-2009-1156?
CVE-2009-1156 has a CVSS 2.0 base score of 5.7, rated medium severity.
Is CVE-2009-1156 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-1156?
CVE-2009-1156 primarily affects Cisco Adaptive Security Appliance 5500. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2009-1156?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2009-1156 published?
CVE-2009-1156 was published on 2009-04-09 and last updated on 2026-06-16.

References

Affected products (4)

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