CVE-2026-82479

NASA cFS SBN TCP sbn_tcp_if.c OS_read buffer overflow

MEDIUM
6.3
CVSS Score
Published: August 30, 2026 at 05:00 AM UTC
Updated: September 1, 2026 at 09:01 PM UTC
2 products affected across 1 vendorCfsCore Flight System

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Severity
MEDIUM6.3
Exploit prediction
EPSS 0.4%
SSVC
PoC

Description

A vulnerability was identified in NASA cFS up to 7.0.1. Impacted is the function OS_read of the file modules/protocol/tcp/fsw/src/sbn_tcp_if.c of the component SBN TCP Module. Such manipulation of the argument MsgSz leads to buffer overflow. The attack must be carried out from within the local network. The vendor was contacted early about this disclosure but did not respond in any way.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (4)

VDB EntryTechnical Description
Source: cverecord
https://vuldb.com/vuln/397029
SignaturePermissions Required
Source: cverecord
https://vuldb.com/vuln/397029/cti
Third Party Advisory
Source: cverecord
https://vuldb.com/cve/CVE-2026-82479
Third Party Advisory
Source: cverecord
https://vuldb.com/submit/888017

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.3MEDIUMVulDB
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-120CWE-119

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