Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

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

Quick assessment

Affected
NASA cFS
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

NASA cFS是美国NASA政府部门开源的一套航天飞行器核心软件框架。 NASA cFS 7.0.1及之前版本存在数字错误漏洞，该漏洞源于cFE Software Bus组件的CFE_SB_GetUserDataLength函数对参数TotalMsgSize/HdrSize的错误操作，导致整数下溢，攻击者可远程发起攻击。

CVSS 7.4 · High EPSS 0.38% · P30

Affected Version Matrix 2

VendorProduct Version RangeStatus
NASA cFS 7.0.0 affected
7.0.1 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-82480

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
NASA cFS cFE Software Bus cfe_sb_util.c CFE_SB_GetUserDataLength integer underflow
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
整数下溢(超界折返)
Source: CVE Program / CVE List V5
Vulnerability Title
NASA cFS 数字错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
NASA cFS是美国NASA政府部门开源的一套航天飞行器核心软件框架。 NASA cFS 7.0.1及之前版本存在数字错误漏洞，该漏洞源于cFE Software Bus组件的CFE_SB_GetUserDataLength函数对参数TotalMsgSize/HdrSize的错误操作，导致整数下溢，攻击者可远程发起攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
NASA cFS 7.0.0 cpe:2.3:a:nasa:cfs:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-82480

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-82480

请登录查看更多情报信息。

Vendor Advisories for CVE-2026-82480 (1)

Other References for CVE-2026-82480 (2)

Same Patch Batch · NASA · 2026-08-30 · 3 CVEs total

CVE-2026-82478 7.3 HIGH NASA Trick TCP Socket JSONVariableServerThread.cpp parse_request stack-based overflow
CVE-2026-82479 6.3 MEDIUM NASA cFS SBN TCP sbn_tcp_if.c OS_read buffer overflow

IV. Related Vulnerabilities

Same product: cFS
Same vendor: NASA
Same weakness: CWE-191

V. Comments for CVE-2026-82480

No comments yet

Leave a comment