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

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-82944— Buffer Overflow in CoE SDO Upload Multi-Segment Data Transfers

Quick assessment

Affected
RT-Labs AB SOEM
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.

SOEM 版本 2.0.0 及更早版本在分段数据传输中存在漏洞，恶意设备可利用该漏洞导致内存缓冲区溢出。该软件仅在传输开始时检查总大小，但未在多个分段陆续到达时跟踪累积大小。攻击者可先声明一个较小的初始大小以通过验证，随后发送超出已分配缓冲区容量的额外分段。这使得攻击者能够在缓冲区边界之外写入受控数据，进而可能实现代码执行。

CVSS 8.8 · High
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-82944

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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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
Buffer Overflow in CoE SDO Upload Multi-Segment Data Transfers
Source: CVE Program / CVE List V5
Vulnerability Description
SOEM version 2.0.0 and earlier contains a vulnerability in multi-segment data transfers where a malicious device can overflow memory buffers. The software checks the total size only once at the beginning, but doesn't track the cumulative size as multiple segments arrive. An attacker can declare a small initial size to pass validation, then send additional segments that exceed the allocated buffer. This allows the attacker to write controlled data beyond buffer boundaries, potentially enabling code execution.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存写
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
RT-Labs AB SOEM 0 ~ 2.0.1 -

II. Public POCs for CVE-2026-82944

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

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-82944

请登录查看更多情报信息。

Other References for CVE-2026-82944 (1)

Same Patch Batch · RT-Labs AB · 2026-10-26 · 6 CVEs total

CVE-2026-70388 8.3 HIGH Memory Corruption via Integer Underflow in Message Length Validation
CVE-2026-82947 7.1 HIGH Multiple Out-of-Bounds Reads in Frame Processing
CVE-2026-82945 6.5 MEDIUM Memory Corruption via FMMU Configuration Table Overflow
CVE-2026-82943 6.5 MEDIUM Out-of-Bounds Read via Unchecked Length Values
CVE-2026-82946 6.5 MEDIUM Null Pointer Dereference in Mailbox Error Handling

IV. Related Vulnerabilities

Same product: SOEM
Same vendor: RT-Labs AB
Same weakness: CWE-787