How severe is CVE-2008-2056?

CVE-2008-2056 has a CVSS 2.0 base score of 7.8, rated high severity.

Is CVE-2008-2056 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2008-2056?

CVE-2008-2056 primarily affects Cisco Adaptive Security Appliance. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2008-2056?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2008-2056 published?

CVE-2008-2056 was published on 2008-06-04 and last updated on 2026-06-16.

CVE-2008-2056

CVE-2008-2056 is a high-severity vulnerability in Cisco Adaptive Security Appliance with a CVSS 2.0 base score of 7.8. 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-20.

Key facts

Severity: High (CVSS 2.0 base score 7.8)
EPSS exploit prediction: 2% (77th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Cisco Adaptive Security Appliance
Published: 2008-06-04
Last modified: 2026-06-16

Description

Cisco Adaptive Security Appliance (ASA) and Cisco PIX security appliance 8.0.x before 8.0(3)9 and 8.1.x before 8.1(1)1 allows remote attackers to cause a denial of service (device reload) via a crafted Transport Layer Security (TLS) packet to the device interface.

Frequently asked questions

What is CVE-2008-2056?: Cisco Adaptive Security Appliance (ASA) and Cisco PIX security appliance 8.0.x before 8.0(3)9 and 8.1.x before 8.1(1)1 allows remote attackers to cause a denial of service (device reload) via a crafted Transport Layer Security (TLS) packet to the device interface.
How severe is CVE-2008-2056?: CVE-2008-2056 has a CVSS 2.0 base score of 7.8, rated high severity.
Is CVE-2008-2056 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2008-2056?: CVE-2008-2056 primarily affects Cisco Adaptive Security Appliance. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2008-2056?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2008-2056 published?: CVE-2008-2056 was published on 2008-06-04 and last updated on 2026-06-16.

References

Affected products (4)

cpe:2.3:h:cisco:adaptive_security_appliance:8.1:*:*:*:*:*:*:*
cpe:2.3:h:cisco:pix_security_appliance:8.0:*:*:*:*:*:*:*
cpe:2.3:h:cisco:pix_security_appliance:8.1:*:*:*:*:*:*:*
cpe:2.3:o:cisco:adaptive_security_appliance_software:8.0:*:*:*:*:*:*:*

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