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CVE-2001-0337

20
FAUCET Score

CVE-2001-0337 describes a memory leak vulnerability introduced by Microsoft patches MS01-014 and MS01-016 in IIS 5.0 and earlier versions. An unauthenticated attacker can exploit this by sending a series of requests, leading to a denial of service. The vulnerability has a medium severity CVSS score of 5.0, indicating a network-based attack with low complexity and partial availability impact. While there is no known active exploitation, public exploit code, or KEV entry, the CVE has garnered significant community discussion, suggesting awareness among security researchers.

Impacted Technologies

VendorProductVersion(s)CPE
<= 5.0CPE matchmatch criteria
cpe:2.3:a:microsoft:internet_information_server:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
4.97%
Probability of exploitation in next 30 days
EPSS Percentile
91.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0497 is in the 88th percentile among its peer group of 23,701 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 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/ms01-026