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CVE-2026-92156

F´: EventManager asserts on legal oversized LogBuffer values delivered over the standard GenericHub event bridge PUBLISHED

Description (CNA)

F´ (F Prime) is a framework that enables development and deployment of spaceflight and other embedded software applications. Prior to 4.3.0, Svc::EventManager loqQueue_internalInterfaceHandler packetization is vulnerable because EventManager accepts up to the framework LogBuffer maximum, but packet descriptor, event identifier, and time-tag metadata consume part of the larger ComBuffer and leave a smaller remaining budget for log arguments; serialization failure then reaches an assertion. When a deployment bridges events through GenericHub into EventManager and forwards a legal Fw::LogBuffer larger than EventManager remaining log-argument budget, under standard F Prime assertion handling, a legal bridged event payload aborts or resets the process, causing denial of service. This issue is fixed in version 4.3.0.

Affected (CNA)

Vendor / productVersions
nasa / fprimeaffected < 4.3.0

CWE

CWE-131, CWE-617

References

ADP enrichment

CISA-ADP

No English description supplied.