CVE-2004-0501

CVE-2004-0501 is a medium-severity vulnerability in Microsoft Outlook with a CVSS 2.0 base score of 5.0. Its EPSS exploit-prediction score of 19% places it in the 97th percentile, indicating an elevated likelihood of exploitation.

Key facts

Description

Outlook 2003 allows remote attackers to bypass intended access restrictions and cause Outlook to request a URL from a remote site via an HTML e-mail message containing a Vector Markup Language (VML) entity whose src parameter points to the remote site, which could allow remote attackers to know when a message has been read, verify valid e-mail addresses, and possibly leak other information.

Frequently asked questions

What is CVE-2004-0501?
Outlook 2003 allows remote attackers to bypass intended access restrictions and cause Outlook to request a URL from a remote site via an HTML e-mail message containing a Vector Markup Language (VML) entity whose src parameter points to the remote site, which could allow remote attackers to know when a message has been read, verify valid e-mail addresses, and possibly leak other information.
How severe is CVE-2004-0501?
CVE-2004-0501 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2004-0501 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 19% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2004-0501?
CVE-2004-0501 affects Microsoft Outlook. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2004-0501?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2004-0501 published?
CVE-2004-0501 was published on 2004-08-18 and last updated on 2026-06-16.

References

Affected products (1)

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