Is CVE-2009-4912 being actively exploited?

CVE-2009-4912 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2009-4912?

CVE-2009-4912 has a CVSS 2.0 base score of 10.0 (HIGH).

CVE-2009-4912

HIGH · CVSS 10.0EPSS 2.5%EU EUVD

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.

Key facts

CVSS score: 10.0 (v2.0)
Severity: HIGH
CVSS vector: AV:N/AC:L/Au:N/C:C/I:C/A:C
Weakness (CWE): CWE-264
EPSS score: 2.5% (85th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2009-4875)
Published: June 29, 2010
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2009-4875 in the EU Vulnerability Database. Last updated in EUVD on September 16, 2024.

View on the EU Vulnerability Database

Affected products

cisco / asa 5580

Certified products that may be affected

1 FIPS 140 or Common Criteria certified product, from automated matching by sec-certs.org.

Cisco ASA 5505, 5510, 5520, 5540, 5550, 5580-20 and 5580-40 Security Appliances - Cisco Systems, Inc. - FIPS 140 1436 - historical

References

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

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

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