CVE-2026-82480

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 v3 7.4 HIGH
CVSS v2.0 6.5 MEDIUM

7.4^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.1 / Impact : 3.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact LOW

Scope CHANGED

6.5^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:S/C:P/I:P/A:P

Exploitability : 8.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://vuldb.com/cve/CVE-2026-82480
https://vuldb.com/submit/888018
https://vuldb.com/vuln/397030
https://vuldb.com/vuln/397030/cti
https://vuldb.com/submit/888018

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-30 06:16

Updated : 2026-09-01 20:48

NVD link : CVE-2026-82480

Mitre link : CVE-2026-82480

CVE.ORG link : CVE-2026-82480

JSON object : View

Products Affected

No product.

CWE

CWE-189

Numeric Errors

CWE-191

Integer Underflow (Wrap or Wraparound)

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