Security readout for executives and security teams
This is an old remote code execution risk in Adobe Reader/Acrobat’s bundled Download Manager component. A vulnerable NOS getPlus Helper ActiveX control could crash or run attacker-supplied code if reached through unspecified initialization parameters. The main business concern is legacy endpoints that still run Reader/Acrobat 8.x or 9.x-era software. Exposure is most likely on legacy workstations with Adobe Reader or Acrobat 8.x before 8.2 or 9.x before 9.3, and the getPlus Helper ActiveX control gp.ocx below 1.6.2.49. Confirm operating system and browser component presence because the source text lists Windows and Mac OS X but specifically names an ActiveX control. Prioritize remediation if legacy Adobe Reader/Acrobat remains in production or on high-risk user workstations. If these versions have been fully removed, residual business risk is low, but asset evidence should be retained because the vulnerability enables possible remote code execution. Mitigation focus: Upgrade Adobe Reader/Acrobat 9.x to 9.3 or later where still present.; Upgrade Adobe Reader/Acrobat 8.x to 8.2 or later where still present.; Verify gp.ocx/getPlus Helper ActiveX is version 1.6.2.49 or later..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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ATT&CK lookup starting points
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Execution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2009-3958 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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.
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
- oval:org.mitre.oval:def:8455CVE reference · vdb-entry, signature
- acrobat-reader-download-manager-bo(55556)CVE reference · vdb-entry, x_refsource_XF
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.