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TI-2026-74390 Aliases CVE-2026-92150

Reachable assertion in F´ GenericHub enables denial of service

Priority HIGH 72CWE-617Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-617.

Summary

NASA F´ (F Prime) before 4.2.0 is affected. The receive handler fromBufferDriver_handler uses assertions on externally influenced deserialization results and permits a command payload size subtraction to underflow (CWE-617). An unauthenticated inter-processor hub peer that sends a truncated buffer, an invalid HubType, or a header-only command payload can abort or reset the process, causing denial of service.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

F´ (F Prime) is a framework that enables development and deployment of spaceflight and other embedded software applications. Prior to 4.2.0, Svc::GenericHub fromBufferDriver_handler deserialization is vulnerable because the receive handler uses FW_ASSERT for externally influenced deserialization status and type validation and permits a command payload size subtraction to underflow. When an unauthenticated inter-processor hub peer sends a truncated buffer, an invalid HubType, or a header-only command-dispatch payload, malformed hub traffic aborts or resets the process, causing denial of service. This issue is fixed in version 4.2.0.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00556 46th percentileScored 2026-11-07
Fix Fixed fprime (nasa): 4.2.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Partial

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

Affected products

VendorProductAffected versionsFixed inStatusSource
nasafprimebefore 4.2.04.2.0Patch availableCNA
  • fprime Vendornasa Affected before 4.2.0 Fixed in 4.2.0 Patch available CNA

Remediation

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

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

  • Fix · CNA fprime (nasa) Fixed in 4.2.0

Timeline

  1. 2026-10-15 Threatist record created from CVE-2026-92150
  2. 2026-10-16 Priority changed: MEDIUM → LOW
  3. 2026-10-20 CISA SSVC decision points changed
  4. 2026-10-20 Priority changed: LOW → HIGH

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