CVE-2026-82479

NASA cFS SBN TCP sbn_tcp_if.c OS_read buffer overflow

Published Aug 30, 2026 CVSS 4.0 · 5.3 Medium EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title NASA cFS SBN TCP sbn_tcp_if.c OS_read buffer overflow
First Time appeared Nasa
Nasa cfs
Weaknesses CWE-119
CWE-120
CPEs cpe:2.3:a:nasa:cfs:*:*:*:*:*:*:*:*
Vendors & Products Nasa
Nasa cfs
References
Metrics cvssV2_0

{'score': 5.8, 'vector': 'AV:A/AC:L/Au:N/C:P/I:P/A:P/E:ND/RL:ND/RC:UR'}

cvssV3_0

{'score': 6.3, 'vector': 'CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:X/RL:X/RC:R'}

cvssV3_1

{'score': 6.3, 'vector': 'CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:X/RL:X/RC:R'}

cvssV4_0

{'score': 5.3, 'vector': 'CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulDB
Published
Updated
Aug 31, 2026, 6:42 PM
Reserved
Aug 29, 2026, 2:40 PM
Status
Deferred
Published
Aug 30, 2026, 6:16 AM
Modified
Sep 1, 2026, 8:48 PM