CVE-2012-2472

What it is

Cisco Adaptive Security Appliances (ASA) 5500 series devices with software 8.2 and 8.4, when SIP inspection is enabled, create many identical pre-allocated secondary pinholes, which might allow remote attackers to cause a denial of service (CPU consumption) via crafted SIP traffic, aka Bug ID CSCtz63143.

At a glance

Exploitability

Can be exploited over the network without logging in. High risk of service disruption.

Exploit odds

1.9% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2012-08-06 17:55 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-16 23:41 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 1.9% in the next 30 days (EPSS).
• Severity: 7.8 HIGH (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2012-08-06 17:55 UTC

Last modified

2026-06-16 23:41 UTC

Exploit probability

1.9% · EPSS, next 30 days

Weakness

CWE-399

Record status

Modified

Affected

• Cisco Adaptive Security Appliance Software 8.2
• Cisco Adaptive Security Appliance Software 8.2\(1\)
• Cisco Adaptive Security Appliance Software 8.2\(2\)
• Cisco Adaptive Security Appliance Software 8.2\(3\)
• Cisco Adaptive Security Appliance Software 8.2\(3.9\)
• Cisco Adaptive Security Appliance Software 8.2\(4\)
• Cisco Adaptive Security Appliance Software 8.2\(4.1\)
• Cisco Adaptive Security Appliance Software 8.2\(4.4\)

Attack profile CVSS 2.0 · 7.8

Attack vector

Network

Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Complete

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