CVE-2004-1021: n/a vulnerability

CVE-2004-1021: iCal before 1.5.4 on Mac OS X 10.2.3, and other later versions, does not alert the user when handling calen...

iCal before 1.5.4 on Mac OS X 10.2.3, and other later versions, does not alert the user when handling calendars that use alarms, which allows attackers to execute programs and send e-mail via alarms.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 8, 2024, 00:39 UTC (UTC+00:00)

Security readout for executives and security teams

CVE-2004-1021 is an old Apple iCal issue where calendar alarms could run programs or send email without warning the user. Business risk is mainly for legacy Mac OS X environments still running vulnerable iCal versions and handling untrusted calendar content. Exposure is most likely in legacy Mac OS X deployments with iCal before 1.5.4. The supplied record does not identify modern Apple products, exact CPEs, or supported remediation channels. Treat this as a legacy exposure cleanup item, not an internet-wide emergency based on the supplied evidence. Prioritize if old Mac systems remain in business workflows or handle external calendar files. Mitigation focus: Upgrade affected iCal installations to version 1.5.4 or later where applicable.; Review Apple advisory APPLE-SA-2004-11-22 for vendor-specific remediation details.; Avoid opening or subscribing to untrusted calendar content on unremediated legacy systems..

Prepared: Jun 30, 2026, 02:08 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

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Nov 24, 2004, 05:00 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
ical-calendar-authorization-bypass(18209)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

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