CVE-2021-20455

VendoribmProductcognos controller, controllerDiscoveredJan 7, 2025UpdatedJul 3, 2025

IBM Cognos Controller 11.0.0 through 11.0.1 and IBM Controller 11.1.0 could allow a remote attacker to obtain sensitive information when a detailed technical error message is returned in the browser. This information could be used in further attacks against the system.

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CVSS v3.1

3.7 LOW

EPSS

0.49%

probability of exploitation in 30 days

CISA KEV

Not listed

no confirmed exploitation reported

News coverage

sources referencing this CVE

Related IOCs

seen in the same coverage

EPSS Trend

Aug 16, 2026 → Oct 22, 2026

● 0.01pp

0.48% → 0.49% over 2 tracked changes

CVSS v3.1 Detail

Attack VectorNETWORK

Attack ComplexityHIGH

Privileges RequiredNONE

User InteractionNONE

ScopeUNCHANGED

ConfidentialityLOW

IntegrityNONE

AvailabilityNONE

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

Connections

3 relationships

CWE-209

source

Timeline

disclosure → media coverage

Jan 7, 2025

Disclosure — published as a CVE record. · last revised by NVD Jul 3, 2025