CVE-2009-4357

CQWeb (aka the web interface) in IBM Rational ClearQuest before 7.1.1 does not properly handle use of legacy URLs for automatic login, which might allow attackers to discover the passwords for user accounts via unspecified vectors.

Published: 2009-12-18 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2009-4357 is rated Moderate Risk (41.9/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.08%). Review affected assets and schedule remediation.

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

Exploit prediction scoring system (EPSS) score for CVE-2009-4357

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 2026-06-15 0.34% 1.08% +0.74%
2 2025-03-30 0.40% 0.34% -0.07%
3 2025-03-29 — 0.40% —

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2009-4357

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:P/I:N/A:N 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:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2009-4357

Affected software / configurations for CVE-2009-4357

Vendor Product Version Raw CPE
ibm rational_clearcase <= 7.1 cpe:2.3:a:ibm:rational_clearcase:*:*:*:*:*:*:*:*
ibm rational_clearcase 7.0.0.1 cpe:2.3:a:ibm:rational_clearcase:7.0.0.1:*:*:*:*:*:*:*
ibm rational_clearcase 7.0.0.2 cpe:2.3:a:ibm:rational_clearcase:7.0.0.2:*:*:*:*:*:*:*
ibm rational_clearcase 7.0.0.4 cpe:2.3:a:ibm:rational_clearcase:7.0.0.4:*:*:*:*:*:*:*
ibm rational_clearcase 7.0.1.1 cpe:2.3:a:ibm:rational_clearcase:7.0.1.1:*:*:*:*:*:*:*
ibm rational_clearcase 7.0.1.3 cpe:2.3:a:ibm:rational_clearcase:7.0.1.3:*:*:*:*:*:*:*
ibm rational_clearquest 5.00 cpe:2.3:a:ibm:rational_clearquest:5.00:*:*:*:*:*:*:*
ibm rational_clearquest 5.20 cpe:2.3:a:ibm:rational_clearquest:5.20:*:*:*:*:*:*:*
ibm rational_clearquest 6.00 cpe:2.3:a:ibm:rational_clearquest:6.00:*:*:*:*:*:*:*
ibm rational_clearquest 6.10 cpe:2.3:a:ibm:rational_clearquest:6.10:*:*:*:*:*:*:*
ibm rational_clearquest 6.12 cpe:2.3:a:ibm:rational_clearquest:6.12:*:*:*:*:*:*:*
ibm rational_clearquest 6.13 cpe:2.3:a:ibm:rational_clearquest:6.13:*:*:*:*:*:*:*
ibm rational_clearquest 6.14 cpe:2.3:a:ibm:rational_clearquest:6.14:*:*:*:*:*:*:*
ibm rational_clearquest 6.15 cpe:2.3:a:ibm:rational_clearquest:6.15:*:*:*:*:*:*:*
ibm rational_clearquest 6.16 cpe:2.3:a:ibm:rational_clearquest:6.16:*:*:*:*:*:*:*
ibm rational_clearquest 7.0 cpe:2.3:a:ibm:rational_clearquest:7.0:*:*:*:*:*:*:*
ibm rational_clearquest 7.0.0.1 cpe:2.3:a:ibm:rational_clearquest:7.0.0.1:*:*:*:*:*:*:*
ibm rational_clearquest 7.0.1 cpe:2.3:a:ibm:rational_clearquest:7.0.1:*:*:*:*:*:*:*
ibm rational_clearquest 7.0.1.0 cpe:2.3:a:ibm:rational_clearquest:7.0.1.0:*:*:*:*:*:*:*
ibm rational_clearquest 7.0.1.1 cpe:2.3:a:ibm:rational_clearquest:7.0.1.1:*:*:*:*:*:*:*
ibm rational_clearquest 7.0.1.3 cpe:2.3:a:ibm:rational_clearquest:7.0.1.3:*:*:*:*:*:*:*
ibm rational_clearquest 7.0.2 cpe:2.3:a:ibm:rational_clearquest:7.0.2:*:*:*:*:*:*:*
ibm rational_clearquest 2007 cpe:2.3:a:ibm:rational_clearquest:2007:*:*:*:*:*:*:*
ibm rational_clearquest 2008 cpe:2.3:a:ibm:rational_clearquest:2008:*:*:*:*:*:*:*

References for CVE-2009-4357

cvelogic Threat Intelligence