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CVE-2001-0726

31
FAUCET Score

CVE-2001-0726 describes a vulnerability in Microsoft Exchange 5.5 Server's Outlook Web Access (OWA) when accessed via Internet Explorer. This flaw allows remote attackers to execute arbitrary actions within a user's Exchange mailbox through specially crafted HTML email messages, due to OWA's failure to properly detect certain inline scripts. With a CVSS score of 7.5 (HIGH), it presents a significant risk, requiring no authentication and having low attack complexity, potentially leading to compromise of confidentiality, integrity, and availability. While there is no evidence of active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered notable community discussion, indicating awareness and potential interest.

Impacted Technologies

VendorProductVersion(s)CPE
5.5CPE matchmatch criteria
cpe:2.3:a:microsoft:exchange_server:5.5:-:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.5HIGH

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
16.12%
Probability of exploitation in next 30 days
EPSS Percentile
96.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.1612 is in the 95th percentile among its peer group of 51,485 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

docs.microsoft.com / en-us/security-updates/securitybulletins/2001/ms01-057
PatchVendor Advisory
exchange.xforce.ibmcloud.com / vulnerabilities/7663
Third Party AdvisoryVDB Entry
osvdb.org / 5557
Broken Link
securityfocus.com / bid/3650
Third Party AdvisoryVDB Entry