CVE-2026-92160 nasa CVE debrief

Who should care

Defenders responsible for F´ deployments, especially those using versions prior to 4.3.0, should assess exposure and potential impact. This includes teams managing spaceflight and other embedded software applications that rely on F´.

Why it matters

CVE-2026-92160 is a denial-of-service vulnerability in F´ that can cause a process abort or reset, potentially disrupting spaceflight or embedded software applications. Defenders should prioritize verifying exposure and updating affected deployments to version 4.3.0 or later.

• Denial-of-service condition due to process abort or reset
• Potential disruption to spaceflight or embedded software applications
• Need for verification of F´ version and exposure
• Priority for updating affected deployments to version 4.3.0 or later

Technical summary

The Svc::FileDownlink SendPartial function in F´ is vulnerable to an integer overflow, which can cause an assertion failure and lead to a process abort or reset. This issue occurs when the wrapping sum of the start offset and length bypasses file-range validation, leaving the byte offset greater than the wrapped end offset. The vulnerability affects F´ versions prior to 4.3.0 and can be exploited by a caller able to issue SendPartial with a length whose U32 sum with the start offset wraps. Defenders should prioritize verifying exposure in F´ deployments, especially those using versions prior to 4.3.0, and assess the potential impact of a denial-of-service condition.

Defensive priority

Defenders should prioritize verifying exposure in F´ deployments, especially those using versions prior to 4.3.0, and assess the potential impact of a denial-of-service condition.

Recommended defensive actions

• Verify F´ version and assess exposure
• Review and update affected deployments to version 4.3.0 or later
• Monitor for potential denial-of-service conditions
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record and source item provide details on the vulnerability, including its description, affected versions, and fixed version. However, there is limited information on potential exploitation or victim impact.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.