High 7.4Published Aug 30, 2026

CVE-2026-82480NASA cFS cFE Software Bus cfe_sb_util.c CFE_SB_GetUserDataLength integer underflow

Updated under an hour ago (2026-10-19 06:30 UTC)

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It affects NASA cFS. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for NASA cFS

Exploited in the last 30 days

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.

CVSS: 7.4 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L/E:X/RL:X/RC:R
Weakness (CWE): CWE-191, CWE-189
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulDB
NVD analysis: Deferred
Record last updated: Aug 31, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

NASA cFS nasa:cfs	7.0.0; 7.0.1	CNA record

References

https://vuldb.com/vuln/397030vdb-entry, technical-description
https://vuldb.com/vuln/397030/ctisignature, permissions-required
https://vuldb.com/cve/CVE-2026-82480third-party-advisory
https://vuldb.com/submit/888018third-party-advisory

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.