CVE-2026-70297— Skype for Business Remote Code Execution Vulnerability
Quick assessment
Affected
Microsoft Skype for Business Server 2015 CU13
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.
在 Skype for Business 和 Microsoft Lync 中存在绝对路径穿越漏洞，允许经身份验证的攻击者在网络上执行代码。
Possible ATT&CK Techniques 1 AI
T1210 · Exploitation of Remote ServicesAffected Version Matrix 3
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Microsoft | Skype for Business Server 2015 CU13 | 9319.0< 6.0.9319.886 |
affected |
| Microsoft | Skype for Business Server 2019 CU8 | 2046.0< 7.0.2046.583 |
affected |
| Microsoft | Skype for Business Server Subscription Edition CU1 | 2046.0< 7.0.2046.889 |
affected |
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I. Basic Information for CVE-2026-70297
Vulnerability Information
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Vulnerability Title
Skype for Business Remote Code Execution Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Absolute path traversal in Skype for Business and Microsoft Lync allows an authorized attacker to execute code over a network.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
绝对路径遍历
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Microsoft | Skype for Business Server 2015 CU13 | 9319.0 ~ 6.0.9319.886 | - |
|
| Microsoft | Skype for Business Server 2019 CU8 | 2046.0 ~ 7.0.2046.583 | - |
|
| Microsoft | Skype for Business Server Subscription Edition CU1 | 2046.0 ~ 7.0.2046.889 | - |
|
II. Public POCs for CVE-2026-70297
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Vendor Advisories for CVE-2026-70297 (1)
Same Patch Batch · Microsoft · 2026-10-13 · 1407 CVEs total
| CVE-2026-69705 | 9.8 CRITICAL | Windows iSCSI Remote Code Execution Vulnerability |
| CVE-2026-83935 | 9.8 CRITICAL | Microsoft XML Remote Code Execution Vulnerability |
| CVE-2026-70153 | 9.8 CRITICAL | Microsoft PostScript Printer Driver Remote Code Execution Vulnerability |
| CVE-2026-70147 | 9.8 CRITICAL | Microsoft PostScript Printer Driver Remote Code Execution Vulnerability |
| CVE-2026-70242 | 9.8 CRITICAL | Microsoft Office Outlook Remote Code Execution Vulnerability |
| CVE-2026-83869 | 9.8 CRITICAL | Windows Domain Name Service Remote Code Execution Vulnerability |
| CVE-2026-85806 | 9.8 CRITICAL | Network Policy Server (NPS) Remote Code Execution Vulnerability |
| CVE-2026-83519 | 9.8 CRITICAL | Windows Error Reporting Remote Code Execution Vulnerability |
| CVE-2026-105010 | 9.8 CRITICAL | Microsoft Windows Search Component Elevation of Privilege Vulnerability |
| CVE-2026-102210 | 9.8 CRITICAL | Windows Text Shaping Remote Code Execution Vulnerability |
| CVE-2026-96909 | 9.8 CRITICAL | Windows BitLocker Remote Code Execution Vulnerability |
| CVE-2026-88178 | 9.8 CRITICAL | Microsoft Office PowerPoint Remote Code Execution Vulnerability |
| CVE-2026-88156 | 9.8 CRITICAL | Microsoft Office Outlook Remote Code Execution Vulnerability |
| CVE-2026-85792 | 9.8 CRITICAL | Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability |
| CVE-2026-69634 | 9.8 CRITICAL | Windows iSCSI Remote Code Execution Vulnerability |
| CVE-2026-97816 | 9.8 CRITICAL | Microsoft OpenSSH for Windows Remote Code Execution Vulnerability |
| CVE-2026-96113 | 9.8 CRITICAL | Windows Domain Name Service Remote Code Execution Vulnerability |
| CVE-2026-96934 | 9.8 CRITICAL | Windows DHCP Server Remote Code Execution Vulnerability |
| CVE-2026-96924 | 9.8 CRITICAL | Windows OLE Remote Code Execution Vulnerability |
| CVE-2026-97815 | 9.8 CRITICAL | Windows Error Reporting Remote Code Execution Vulnerability |
Showing top 20 of 1407 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Skype for Business Server 2015 CU13
-
CVE-2026-83746
Skype for Business Elevation of Privilege Vulnerability -
CVE-2026-85873
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Same vendor: Microsoft
-
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Microsoft SQL Server Elevation of Privilege Vulnerability -
CVE-2026-88084
Microsoft SQL Server Denial of Service Vulnerability -
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Microsoft SQL Server Information Disclosure Vulnerability
Same weakness: CWE-36
-
CVE-2026-83746
Skype for Business Elevation of Privilege Vulnerability -
CVE-2026-83683
Windows Encrypting File System (EFS) Information Disclosure -
CVE-2026-83784
Windows Encrypting File System (EFS) Elevation of Privilege -
CVE-2025-70820
Zettlab D6 Ultra 路径遍历漏洞 -
CVE-2026-89009
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V. Comments for CVE-2026-70297
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