CVE-2001-0950

Exp

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.

Published: 2001-12-04 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2001-0950 is rated High Exploit Risk (73.5/100): CVSS High severity, with medium exploitation likelihood (EPSS 1.63%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2001-0950

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2001-0950

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-08-01 1.54% 1.63% +0.08%
2 2025-03-30 1.15% 1.54% +0.40%
3 2025-03-29 — 1.15% —

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2001-0950

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 3.6 [email protected]
7.5 2.0 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 6.4 [email protected]

Weakness enumeration for CVE-2001-0950

Affected software / configurations for CVE-2001-0950

Vendor Product Version Raw CPE
valicert enterprise_validation_authority >= 3.3, <= 4.2.1 cpe:2.3:a:valicert:enterprise_validation_authority:*:*:*:*:*:*:*:*

References for CVE-2001-0950

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