CVE-2009-4912
Cisco Adaptive Security Appliances (ASA) 5580 series devices with software before 8.1(2) complete...
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.
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2009-4912- CVSS 2.0
- 10.0 High
AV:N/AC:L/Au:N/C:C/I:C/A:C - Weakness
- CWE-264
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2009-4912- Updated
- 2026-11-02
EUVDEUVD-2009-4875 No score
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.
- Record
EUVD-2009-4875- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-wv8r-qj2j-7h4m No score
Cisco Adaptive Security Appliances (ASA) 5580 series devices with software before 8.1(2) complete...
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.
- Record
GHSA-wv8r-qj2j-7h4m- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2009-4912 is a high vulnerability (CVSS 10.0) in Cisco Asa 5580, published June 29, 2010. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.54%, the 85th percentile. No source names a fixed version.