High 8.1Published Oct 14, 2026

CVE-2026-92154F´: File size bounds bypass in Svc::FileUplink via unsigned integer overflow in DATA packet validation

Updated under an hour ago (2026-10-19 06:10 UTC)

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It affects nasa fprime. Add what you run to find out whether that includes you.

EPSS puts the chance of exploitation in the next 30 days at 0.56%, higher than 45% of scored CVEs.

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Every CVE for nasa fprime

Exploited in the last 30 days

F´ (F Prime) is a framework that enables development and deployment of spaceflight and other embedded software applications. Prior to 4.2.0, Svc::FileUplink handleDataPacket offset and size validation is vulnerable because the component checks byteOffset plus dataSize with wrapping U32 arithmetic and then seeks to the large attacker-controlled offset before writing. When a file-uplink DATA packet supplies a byteOffset and dataSize whose unsigned sum wraps below the declared file size, data can be written beyond the declared upload size, causing file integrity loss and potentially large sparse-file growth or resource exhaustion. This issue is fixed in version 4.2.0.

CVSS: 8.1 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Weakness (CWE): CWE-190
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): 0.56% (percentile 45)
Assigned by: GitHub_M
NVD analysis: Deferred
Record last updated: Oct 15, 2026
First seen by InfoSec Signals: Oct 14, 2026

Affected products

Affected products

nasa fprime nasa:fprime (from the name)	before 4.2.0	CNA record

References

https://github.com/nasa/fprime/security/advisories/GHSA-wx8q-q5gx-f54px-refsource-confirm
https://github.com/nasa/fprime/pull/4919x-refsource-misc
https://github.com/nasa/fprime/commit/cacdd555456bd83ab395b521d56c0330470ea798x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.