CVE-2012-2418

What it is

Heap-based buffer overflow in the intu-help-qb (aka Intuit Help System Async Pluggable Protocol) handlers in HelpAsyncPluggableProtocol.dll in Intuit QuickBooks 2009 through 2012, when Internet Explorer is used, allows remote attackers to cause a denial of service (memory corruption) or possibly execute arbitrary code via a URI with a % (percent) character as its (1) last or (2) second-to-last character.

At a glance

Exploitability

Can be exploited from the same network segment without logging in. High risk of data exposure, data tampering, service disruption.

Exploit odds

3.2% chance of exploitation in the next 30 days (EPSS).

Fix

No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

1. 2012-04-25 20:55 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: 3.2% in the next 30 days (EPSS).
• Severity: 6.8 MEDIUM (CVSS).
• Fix: none linked yet, which raises it.

Details

Published

2012-04-25 20:55 UTC

Last modified

2026-06-16 23:41 UTC

Exploit probability

3.2% · EPSS, next 30 days

Weakness

CWE-119 · Buffer errors

Record status

Modified

Affected

• Intuit Quickbooks 2009
• Intuit Quickbooks 2010
• Intuit Quickbooks 2011
• Intuit Quickbooks 2012

Attack profile CVSS 2.0 · 6.8

Attack vector

Adjacent network

Complexity

High

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

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