Security readout for executives and security teams
CVE-2012-4847 is an availability issue in IBM Cognos Business Intelligence 8.4 and 8.4.1. An authenticated remote user can send a crafted request containing a zero-valued byte and consume CPU, potentially disrupting BI service availability. The public bundle does not provide CVSS scoring or confirmed active exploitation. Exposure is limited to environments still running IBM Cognos Business Intelligence 8.4 or 8.4.1 where authenticated users can reach the affected service. Systems not on those versions are not identified as affected by the provided bundle. Prioritize if legacy Cognos BI 8.4 or 8.4.1 supports important reporting workflows. The business risk is service disruption rather than data theft based on the provided evidence. If those versions are absent, urgency is low. Mitigation focus: Check IBM advisory swg21615445 for vendor-supported fixes or upgrade guidance.; Identify and retire IBM Cognos BI 8.4 and 8.4.1 deployments.; Restrict Cognos access to trusted users and networks where feasible..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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ATT&CK lookup starting points
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CVE-2012-4847 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- cognos-bi-nullbyte-dos(79536)CVE reference · vdb-entry, x_refsource_XF
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.