CVE-2004-0501

Outlook vulnerability

CVSS

5.0

EPSS

18.7%

EPSS pct

97th

Exploited

No known

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.

Affected vendor

Microsoft

Affected product

Outlook

CVSS vector

AV:N/AC:L/Au:N/C:P/I:N/A:N

Published

2004-08-18

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no authentication. Successful exploitation leads to partial impact to confidentiality.

Its EPSS score of 18.7% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 97% of all scored CVEs.

Check your external exposure to CVE-2004-0501

Confirm whether Microsoft Outlook is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2004-0501.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2004-0501

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2004-0501 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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