Security readout for executives and security teams
This CVE affects legacy IBM Power 5 systems where the Service Processor may fail to run firewall code. If an affected system is on vulnerable firmware, a remote attacker could execute arbitrary code through unspecified means. The sources do not provide CVSS scoring, exploit details, or active exploitation evidence. Exposure is most likely limited to organizations still operating IBM Power 5 91##-### or 940#-### systems with Service Processor firmware earlier than SF240_418_382. Risk depends on whether Service Processor management paths are reachable by untrusted networks or users. Treat as an asset-discovery and legacy-platform risk item. It can enable remote code execution on Service Processor firmware, but available public evidence is sparse and active exploitation is not documented in the provided sources. Mitigation focus: Inventory IBM Power 5 systems matching the listed model patterns.; Check Service Processor firmware against SF240_418_382.; Apply IBM vendor guidance for affected Service Processor firmware..
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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Execution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2012-4856 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
- ibm-power-default-accounts(79736)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.