CVE-2009-4913: n/a vulnerability

CVE-2009-4913: The IPv6 implementation on Cisco Adaptive Security Appliances (ASA) 5580 series devices with software befor...

The IPv6 implementation on Cisco Adaptive Security Appliances (ASA) 5580 series devices with software before 8.1(2) exposes IP services on the "far side of the box," which might allow remote attackers to bypass intended access restrictions via IPv6 packets, aka Bug ID CSCso58622.

UnknownCVSS not scoredNot KEV-listedUpdatedSep 16, 2024, 23:16 UTC (UTC+00:00)

Security readout for executives and security teams

This CVE concerns legacy Cisco ASA 5580 firewalls. The IPv6 implementation could expose IP services on the wrong side of the firewall, potentially letting remote IPv6 traffic bypass intended access restrictions. Public severity and CVSS data are not provided in the bundle. Exposure appears limited to Cisco ASA 5580 series devices running software before 8.1(2), especially where IPv6 is enabled or reachable. The provided affected-products field is incomplete, so confirm against Cisco guidance. Treat as a targeted legacy firewall exposure issue. It is not KEV-listed, but a firewall access-control bypass can matter if affected devices still protect business networks. Mitigation focus: Inventory Cisco ASA 5580 appliances and record running software versions.; Prioritize any ASA 5580 running software before 8.1(2).; Review Cisco ASA 8.1(2) release notes and current vendor guidance..

Prepared: Jun 28, 2026, 02:01 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Jun 29, 2010, 18:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

1Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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