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

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-92156
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-14 18:19:34 UTC
Updated2026-10-15 14:45:10 UTC
DescriptionF´ (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.

Risk And Classification

Primary CVSS: v3.1 6.5 MEDIUM from [email protected]

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

Problem Types: CWE-131 | CWE-617 | CWE-131 CWE-131: Incorrect Calculation of Buffer Size | CWE-617 CWE-617: Reachable Assertion

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary6.5MEDIUMCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
3.1CNADECLARED6.5MEDIUMCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v3.1 Breakdown

Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Nasa Fprime affected < 4.3.0 Not specified

References

ReferenceSourceLinkTags
github.com/nasa/fprime/security/advisories/GHSA-6fxx-mgfv-55g7 134c704f-9b21-4f2e-91b3-4a467353bcc0 github.com
github.com/nasa/fprime/releases/tag/v4.3.0 [email protected] github.com
github.com/nasa/fprime/commit/7eacd551aaf6d9a21e347ac2c8d827ca15ee5755 [email protected] github.com
github.com/nasa/fprime/pull/5633 [email protected] github.com
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