CVE-2009-1493: n/a vulnerability

CVE-2009-1493: The customDictionaryOpen spell method in the JavaScript API in Adobe Reader 9.1, 8.1.4, 7.1.1, and earlier...

The customDictionaryOpen spell method in the JavaScript API in Adobe Reader 9.1, 8.1.4, 7.1.1, and earlier on Linux and UNIX allows remote attackers to cause a denial of service (memory corruption) or execute arbitrary code via a PDF file that triggers a call to this method with a long string in the second argument.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 7, 2024, 05:13 UTC (UTC+00:00)

Security readout for executives and security teams

This is a legacy Adobe Reader flaw on Linux and UNIX. A malicious PDF could crash Reader or potentially run code when a vulnerable JavaScript spell-check API is triggered. The main business risk is old desktop or server images still carrying unsupported Reader versions. Exposure is most likely in legacy Linux or UNIX environments where Adobe Reader 9.1, 8.1.4, 7.1.1, or earlier remains installed and users can open untrusted PDF files. Prioritize remediation where legacy Linux or UNIX desktops process external PDFs. The vulnerability is old, but public exploit material and code-execution impact make unmanaged legacy exposure unacceptable. Mitigation focus: Inventory Linux and UNIX hosts for affected Adobe Reader versions.; Review Adobe APSB09-06 for the vendor-supported update path.; Remove or replace unsupported Adobe Reader installations where possible..

Prepared: Jun 28, 2026, 11:04 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

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Execution behavior lookup

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CVE-2009-1493 mapping review

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Apr 30, 2009, 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

3Source 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
8570CVE reference · exploit, x_refsource_EXPLOIT-DB
reader-spellcustom-code-execution(50146)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

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