CVE-2001-0950

Name: CVE-2001-0950
Creator: NVD / NIST
Published: 2001-12-04T05:00:00+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.59%

Last modified Jun 16, 2026

CVE-2001-0950 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. ValiCert Enterprise Validation Authority (EVA) Administration Server 3.3 through 4.2.1 uses insufficiently random data to (1) generate session tokens for HSMs using the C rand function, or (2) generate certificates or keys using /dev/urandom instead of another source which blocks when the entropy pool is low, which could make it easier for local or remote attackers to steal tokens or certificates via brute force guessing.. EPSS estimates a 1.59% chance of exploitation in the next 30 days.

Description

ValiCert Enterprise Validation Authority (EVA) Administration Server 3.3 through 4.2.1 uses insufficiently random data to (1) generate session tokens for HSMs using the C rand function, or (2) generate certificates or keys using /dev/urandom instead of another source which blocks when the entropy pool is low, which could make it easier for local or remote attackers to steal tokens or certificates via brute force guessing.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS Probability

1.59%

72.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-331

Affected Software

Vendor	Product	Versions
Valicert	Enterprise Validation Authority	>= 3.3, <= 4.2.1

References

http://marc.info/?l=bugtraq&m=100749428517090&w=2Exploit, Mailing List
http://www.securityfocus.com/bid/3618Broken Link, Patch, Third Party Advisory, VDB Entry, Vendor Advisory
http://www.securityfocus.com/bid/3620Broken Link, Patch, Third Party Advisory, VDB Entry, Vendor Advisory
http://www.valicert.com/support/security_advisory_eva.htmlBroken Link
https://exchange.xforce.ibmcloud.com/vulnerabilities/7651Third Party Advisory, VDB Entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/7653Third Party Advisory, VDB Entry
http://marc.info/?l=bugtraq&m=100749428517090&w=2Exploit, Mailing List
http://www.securityfocus.com/bid/3618Broken Link, Patch, Third Party Advisory, VDB Entry, Vendor Advisory
http://www.securityfocus.com/bid/3620Broken Link, Patch, Third Party Advisory, VDB Entry, Vendor Advisory
http://www.valicert.com/support/security_advisory_eva.htmlBroken Link
https://exchange.xforce.ibmcloud.com/vulnerabilities/7651Third Party Advisory, VDB Entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/7653Third Party Advisory, VDB Entry

Timeline

Published: Dec 4, 2001
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2001-0950?

How severe is CVE-2001-0950?

CVE-2001-0950 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.59% probability of exploitation in the next 30 days.

How do I fix CVE-2001-0950?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2001-0950?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST