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CVE-2001-1534

12
FAUCET Score

CVE-2001-1534 describes a predictable session ID generation vulnerability in mod_usertrack within Apache HTTP Server versions 1.3.11 through 1.3.20. This flaw allows local users to deduce session IDs by leveraging predictable information like host IP, system time, and process ID, potentially bypassing authentication if session IDs are used for that purpose. The vulnerability has a low CVSS score of 2.1 (AV:L/AC:L/Au:N/C:P/I:N/A:N), indicating local access and low attack complexity are required, with a potential impact of partial confidentiality loss. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 1.3.11, <= 1.3.20CPE matchmatch criteria
cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

2.1LOW

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

Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Exploitability Score
3.9
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.70%
Probability of exploitation in next 30 days
EPSS Percentile
49.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0070 is in the 84th percentile among its peer group of 2,096 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.6 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

Vendor Advisories (1)

redhatCVE-2001-1534

CVE-2001-1534

References

cert.uni-stuttgart.de / archive/bugtraq/2001/11/msg00084.html
Broken Link
iss.net / security_center/static/7494.php
Broken Link
securityfocus.com / bid/3521
Third Party AdvisoryVDB Entry