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TI-2026-74391 Aliases CVE-2026-92152

Unvalidated port index in F´ GenericHub enables memory corruption

Priority MEDIUM 49CWE-129Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-129 and the CVSS impact.

Summary

F´ (F Prime) from 4.1.0 before 4.2.0 does not range check the deserialized port field in Svc::GenericHub output-port dispatch (CWE-129). A remote attacker who sends a hub packet with a port index outside the configured output-port array can trigger the flaw without authentication. Assertion-enabled builds abort, while other builds can access the output-port array out of bounds, corrupt heap memory, and potentially allow remote code execution.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

F´ (F Prime) is a framework that enables development and deployment of spaceflight and other embedded software applications. From 4.1.0 until 4.2.0, Svc::GenericHub output-port dispatch is vulnerable because the deserialized port field is passed to serialOut_out, bufferOut_out, eventOut_out, or tlmOut_out without an explicit range check. When a remote hub packet supplies a port index outside the configured output-port array, assert-enabled builds abort, while builds without assertions can access an output-port array out of bounds, corrupt heap memory, and potentially allow remote code execution. This issue is fixed in version 4.2.0.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0067 52nd percentileScored 2026-11-07
Fix Fixed fprime (nasa): 4.2.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
nasafprime4.1.0 to before 4.2.04.2.0Patch availableCNA
  • fprime Vendornasa Affected 4.1.0 to before 4.2.0 Fixed in 4.2.0 Patch available CNA

Remediation

Upgrade F´ (F Prime) to version 4.2.0, which fixes this issue.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

  • Fix · CNA fprime (nasa) Fixed in 4.2.0

Timeline

  1. 2026-10-15 Threatist record created from CVE-2026-92152
  2. 2026-10-29 CISA SSVC decision points changed

References

Other 4

  • TI-2025-21552 CryptoLib Has Heap Overflow in Crypto_TM_ProcessSecurity due to Unchecked Secondary Header Length CVSS 3.1CRITICAL 9.4
  • TI-2025-18986 The Memory Management Module of NASA cFS (Core Flight System) Aquila has insecure… CVSS 3.1CRITICAL 9.8
  • TI-2024-36754 A command injection vulnerability in the Command Dispatcher Service of NASA Fprime v3.4.3… CVSS 3.1CRITICAL 9.8
  • TI-2024-36752 A template injection vulnerability in the Dashboard of NASA Fprime v3.4.3 allows… CVSS 3.1CRITICAL 9.8
  • TI-2026-42833 AIT-DSN < 2.2.2 Missing Authentication via SLE API Routes CVSS 4.0CRITICAL 9.3
  • TI-2025-21662 Heap Buffer Overflow via Incomplete Length Check in `Crypto_TC_ApplySecurity` CVSS 4.0CRITICAL 9.3
See all 86 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences