CVE-2003-0309: n/a vulnerability

CVE-2003-0309: Internet Explorer 5.01, 5.5, and 6.0 allows remote attackers to bypass security zone restrictions and execu...

Internet Explorer 5.01, 5.5, and 6.0 allows remote attackers to bypass security zone restrictions and execute arbitrary programs via a web document with a large number of duplicate file:// or other requests that point to the program and open multiple file download dialogs, which eventually cause Internet Explorer to execute the program, as demonstrated using a large number of FRAME or IFRAME tags, aka the "File Download Dialog Vulnerability."

UnknownCVSS not scoredNot KEV-listedUpdatedAug 8, 2024, 01:50 UTC (UTC+00:00)

Security readout for executives and security teams

CVE-2003-0309 is an old Internet Explorer flaw where a malicious web document could overwhelm file download dialogs and bypass browser security zone protections, potentially causing a local program to run. It matters mainly where obsolete Internet Explorer 5.01, 5.5, or 6.0 remains in use. Likely exposure is limited to legacy Windows environments still using Internet Explorer 5.01, 5.5, or 6.0, especially where users can browse untrusted content. Modern environments are unlikely to be exposed unless they preserve old IE stacks for compatibility. Prioritize only if legacy Internet Explorer remains operational. For normal modern fleets, this is mainly a hygiene and legacy-risk issue. For regulated or operational environments with old Windows systems, confirm patch status and isolation promptly. Mitigation focus: Review and apply Microsoft MS03-020 guidance for affected Internet Explorer installations.; Remove or isolate obsolete Internet Explorer 5.01, 5.5, and 6.0 systems.; Block legacy browsers from untrusted web browsing where retirement is delayed..

Prepared: Jun 30, 2026, 10:57 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-2003-0309 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: May 17, 2003, 04:00 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

4Source 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
oval:org.mitre.oval:def:948CVE reference · vdb-entry, signature
MS03-020CVE reference · vendor-advisory, x_refsource_MS
ie-frame-restrictions-bypass(12019)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.