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Vulnerability record · CVE-2009-4912 · published 29 June 2010

CVE-2009-4912: Cisco asa 5580 permissions and access controls vulnerability

Cisco · Asa 5580

Cisco Adaptive Security Appliances (ASA) 5580 series devices with software before 8.1(2) complete an SSL handshake with an HTTPS client even if this client is unauthorized, which might allow remote attackers to bypass intended access restrictions via an HTTPS session, aka Bug ID CSCso10876.

10.0 CVSS 2.0 High EPSS 2.5% · top 15.7% CWE-264 · Permissions and access controls
10.0CVSS 2.0 base score
2.5%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
16 Jun 2026Last modified by NVD

Description

Cisco Adaptive Security Appliances (ASA) 5580 series devices with software before 8.1(2) complete an SSL handshake with an HTTPS client even if this client is unauthorized, which might allow remote attackers to bypass intended access restrictions via an HTTPS session, aka Bug ID CSCso10876.

AV:N/AC:L/Au:N/C:C/I:C/A:C

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.cisco.com/en/US/docs/security/asa/asa81/release/notes/asarn812.html Patch
http://www.cisco.com/en/US/docs/security/asa/asa81/release/notes/asarn812.html Patch

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2009-4919Cisco asa 5580 memory buffer overflow vulnerabilityBuffer overflow on Cisco Adaptive Security Appliances (ASA) 5580 series devices with software before 8.1(2) allows remote attackers to have an unspec…EPSS 2.1%7.8CVE-2011-0395Cisco adaptive security appliance vulnerabilityCisco Adaptive Security Appliances (ASA) 5500 series devices with software 8.0 before 8.0(5.20), 8.1 before 8.1(2.48), 8.2 before 8.2(3), and 8.3 bef…EPSS 2.6%7.8CVE-2011-0396Cisco adaptive security appliance permissions and access controls vulnerabilityCisco Adaptive Security Appliances (ASA) 5500 series devices with software 8.0 before 8.0(5.23), 8.1 before 8.1(2.49), 8.2 before 8.2(4.1), and 8.3 b…EPSS 1.4%7.8CVE-2010-2814Cisco adaptive security appliance vulnerabilityUnspecified vulnerability in the Transport Layer Security (TLS) implementation on Cisco Adaptive Security Appliances (ASA) 5500 series devices with s…EPSS 2.5%7.8CVE-2010-2815Cisco adaptive security appliance vulnerabilityUnspecified vulnerability in the Transport Layer Security (TLS) implementation on Cisco Adaptive Security Appliances (ASA) 5500 series devices with s…EPSS 2.5%7.8CVE-2010-2816Cisco adaptive security appliance vulnerabilityUnspecified vulnerability in the SIP inspection feature on Cisco Adaptive Security Appliances (ASA) 5500 series devices with software 8.0 before 8.0(…EPSS 2.5%7.8CVE-2010-2817Cisco adaptive security appliance vulnerabilityUnspecified vulnerability in the IKE implementation on Cisco Adaptive Security Appliances (ASA) 5500 series devices with software 7.0 before 7.0(8.11…EPSS 2.5%7.8CVE-2009-4911Cisco asa 5580 vulnerabilityUnspecified vulnerability on Cisco Adaptive Security Appliances (ASA) 5580 series devices with software before 8.1(2) allows remote attackers to caus…EPSS 1.2%

Source: NIST National Vulnerability Database (record CVE-2009-4912), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.