CVE-2026-92160 F´: SendPartial Integer Overflow Leading to Assertion DoS
An attacker can cause a denial of service in F Prime embedded systems by triggering an integer overflow in file downlink operations.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-92160?
CVE-2026-92160 is a medium-severity vulnerability in nasa fprime, published on 14 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
F´ (F Prime) is a framework that enables development and deployment of spaceflight and other embedded software applications. Prior to 4.3.0, Svc::FileDownlink SendPartial range validation is vulnerable because the wrapping sum bypasses file-range validation, becomes m_endOffset, and leaves m_byteOffset greater than the wrapped end offset. When an existing source file is larger than the supplied startOffset and a caller able to issue SendPartial supplies a length whose U32 sum with that offset wraps, the first data-packet send reaches FW_ASSERT and aborts or resets the process, causing denial of service. This issue is fixed in version 4.3.0.
Which versions are affected by CVE-2026-92160?
How do I fix CVE-2026-92160?
No fix has been published for CVE-2026-92160 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-92160 being exploited?
There is no known exploitation of CVE-2026-92160 in the wild and no public exploit code.
Sources
Also known as GHSA-8r3j-ghrh-55mw.