CVE-2026-82480
High
Description
A security flaw has been discovered in NASA cFS up to 7.0.1. The affected element is the function CFE_SB_GetUserDataLength of the file src/cFS/cfe/modules/sb/fsw/src/cfe_sb_util.c of the component cFE Software Bus. Performing a manipulation of the argument TotalMsgSize/HdrSize results in integer underflow. It is possible to initiate the attack remotely. The vendor was contacted early about this disclosure but did not respond in any way.
SeverityHigh
CVSS7.4
Exploit probability—
ProductNasa Cfs
PublishedAug 30, 2026
First seenAug 30, 2026
Weakness typeCWE-191CWE-191CWE-189CWE-189
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| nasa cfs | 7.0.0, 7.0.1 | — |
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