CVE-2012-2420: n/a vulnerability

CVE-2012-2420: The intu-help-qb (aka Intuit Help System Async Pluggable Protocol) handlers in HelpAsyncPluggableProtocol.d...

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, might allow remote attackers to obtain sensitive information via a URI with a % (percent) character as its (1) last or (2) second-to-last character, in situations where a certain "post-URL data" buffer contains a 0x0000 character but a buffer overflow does not occur.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 19:34 UTC (UTC+00:00)

Security readout for executives and security teams

This is an old QuickBooks client-side issue involving the Intuit Help protocol handler and Internet Explorer. A specially formed help URI could expose sensitive information under narrow memory conditions. The bundle does not provide a CVSS score, affected CPEs, or a named patch. Exposure is most plausible on legacy Windows desktops with QuickBooks 2009-2012 installed, Internet Explorer available, and the Intuit Help async pluggable protocol handler registered. Modern environments that retired those versions or disabled IE-based protocol invocation are less likely exposed. Treat this as a legacy exposure cleanup item, not an emergency, unless affected QuickBooks desktops are still in production. Priority should rise for systems handling sensitive financial data or browsing untrusted web content with Internet Explorer. Mitigation focus: Inventory endpoints for QuickBooks 2009 through 2012 installations.; Check Intuit support guidance for vendor-confirmed fixes or upgrade paths.; Retire unsupported QuickBooks versions where business operations allow..

Prepared: Jun 24, 2026, 12:52 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

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cve · low confidence lookup

CVE-2012-2420 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup

Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Apr 25, 2012, 20:00 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

2Source 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
quickbooks-helpasyncl-info-disc(74548)CVE reference · vdb-entry, x_refsource_XF

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.