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CVE-2001-0538

70
FAUCET Score

CVE-2001-0538 describes a critical arbitrary command execution vulnerability in the Microsoft Outlook View ActiveX Control, affecting Outlook 2002 and earlier versions. This flaw allows remote attackers to execute arbitrary commands on a victim's system simply by sending a malicious HTML email or directing them to a malicious web page. With a CVSS score of 10.0 (Critical), this vulnerability is easily exploitable over the network with no authentication or user interaction required, leading to complete compromise of confidentiality, integrity, and availability. While not currently on CISA's KEV catalog, exploit code is publicly available on ExploitDB, and the vulnerability has garnered significant community discussion, indicating its historical relevance and potential for exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2002CPE matchmatch criteria
cpe:2.3:a:microsoft:outlook:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

10.0HIGH

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

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
52.85%
Probability of exploitation in next 30 days
EPSS Percentile
98.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-21004 · Jul 12, 2001
This CVE's current EPSS score of 0.5285 is in the 98th percentile among its peer group of 51,551 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

marc.info
docs.microsoft.com / en-us/security-updates/securitybulletins/2001/ms01-038
exchange.xforce.ibmcloud.com / vulnerabilities/6831
ciac.org / ciac/bulletins/l-113.shtml
kb.cert.org / vuls/id/131569
US Government Resource
ntbugtraq.com / default.asp
securityfocus.com / bid/3025