CVE-2011-2021

Session fixation vulnerability in TIBCO iProcess Engine before 11.1.3 and iProcess Workspace before 11.3.1 allows remote attackers to hijack web sessions via unspecified vectors.

Published: 2011-05-20 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2011-2021 is rated Moderate Risk (45.6/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.95%). EPSS rose +1.27% over the last day, indicating growing attacker interest. 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-2011-2021

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 0.68% 1.95% +1.27%
2 2025-03-30 1.00% 0.68% -0.32%
3 2025-03-29 — 1.00% —

Full EPSS history (6 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2011-2021

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.3 2.0 MEDIUM
AV:N/AC:M/Au:N/C:N/I:P/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
 8.6 2.9 [email protected]

Weakness enumeration for CVE-2011-2021

NVD evaluator notes for CVE-2011-2021

Comment: Per: http://cwe.mitre.org/data/definitions/384.html 'CWE-384: Session Fixation'

Affected software / configurations for CVE-2011-2021

Vendor Product Version Raw CPE
tibco iprocess_engine <= 11.1.2 cpe:2.3:a:tibco:iprocess_engine:*:*:*:*:*:*:*:*
tibco iprocess_engine 10.3.0 cpe:2.3:a:tibco:iprocess_engine:10.3.0:*:*:*:*:*:*:*
tibco iprocess_engine 10.3.1 cpe:2.3:a:tibco:iprocess_engine:10.3.1:*:*:*:*:*:*:*
tibco iprocess_engine 10.3.2 cpe:2.3:a:tibco:iprocess_engine:10.3.2:*:*:*:*:*:*:*
tibco iprocess_engine 10.3.3 cpe:2.3:a:tibco:iprocess_engine:10.3.3:*:*:*:*:*:*:*
tibco iprocess_engine 10.3.4 cpe:2.3:a:tibco:iprocess_engine:10.3.4:*:*:*:*:*:*:*
tibco iprocess_engine 10.3.5 cpe:2.3:a:tibco:iprocess_engine:10.3.5:*:*:*:*:*:*:*
tibco iprocess_engine 10.4 cpe:2.3:a:tibco:iprocess_engine:10.4:*:*:*:*:*:*:*
tibco iprocess_engine 10.4.1 cpe:2.3:a:tibco:iprocess_engine:10.4.1:*:*:*:*:*:*:*
tibco iprocess_engine 10.5 cpe:2.3:a:tibco:iprocess_engine:10.5:*:*:*:*:*:*:*
tibco iprocess_engine 10.6 cpe:2.3:a:tibco:iprocess_engine:10.6:*:*:*:*:*:*:*
tibco iprocess_engine 10.6.0 cpe:2.3:a:tibco:iprocess_engine:10.6.0:*:*:*:*:*:*:*
tibco iprocess_engine 10.6.1 cpe:2.3:a:tibco:iprocess_engine:10.6.1:*:*:*:*:*:*:*
tibco iprocess_engine 10.6.2 cpe:2.3:a:tibco:iprocess_engine:10.6.2:*:*:*:*:*:*:*
tibco iprocess_engine 11.0 cpe:2.3:a:tibco:iprocess_engine:11.0:*:*:*:*:*:*:*
tibco iprocess_engine 11.1.1 cpe:2.3:a:tibco:iprocess_engine:11.1.1:*:*:*:*:*:*:*
tibco iprocess_workspace <= 11.3 cpe:2.3:a:tibco:iprocess_workspace:*:*:*:*:*:*:*:*
tibco iprocess_workspace 11.0 cpe:2.3:a:tibco:iprocess_workspace:11.0:*:*:*:*:*:*:*
tibco iprocess_workspace 11.1 cpe:2.3:a:tibco:iprocess_workspace:11.1:*:*:*:*:*:*:*
tibco iprocess_workspace 11.2 cpe:2.3:a:tibco:iprocess_workspace:11.2:*:*:*:*:*:*:*

References for CVE-2011-2021

cvelogic Threat Intelligence