CVE-2026-121513— Out-of-bounds Write in µD3TN
Quick assessment
Affected
D3TN GmbH µD3TN
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.
µD3TN v0.15.1 的 SPP 解析器中存在一个差一（Off-by-one）堆溢出漏洞，该漏洞允许未经身份验证的远程攻击者可靠地触发拒绝服务（DoS）攻击。
Possible ATT&CK Techniques 2 AI
T1499 · Endpoint Denial of Service T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-121513
Vulnerability Information
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Vulnerability Title
Out-of-bounds Write in µD3TN
Source: CVE Program / CVE List V5
Vulnerability Description
Off-by-one Heap Overflow in µD3TN v0.15.1 SPP Parser allows Unauthenticated Remote Attacker to Reliably Cause DoS
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存写
Source: CVE Program / CVE List V5
Affected Products
II. Public POCs for CVE-2026-121513
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Other References for CVE-2026-121513 (1)
Same Patch Batch · D3TN GmbH · 2026-11-03 · 6 CVEs total
| CVE-2026-121510 | 7.5 HIGH | Out-of-bounds Write in µD3TN |
| CVE-2026-121512 | 7.5 HIGH | Missing Release of Memory after Effective Lifetime in µD3TN |
| CVE-2026-121511 | 7.1 HIGH | Out-of-bounds Read in µD3TN |
| CVE-2026-121508 | 5.9 MEDIUM | Use After Free in µD3TN |
| CVE-2026-121507 | 5.9 MEDIUM | Double Free in µD3TN |