VulnSocial

CVE-2026-70297

LOWCVSS 8.8 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

Absolute path traversal in Skype for Business and Microsoft Lync allows an authorized attacker to execute code over a network.

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0.0/ 10 priority

Sources & remediation

Other references
Weakness type (CWE)
CWE-36

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Threat summary

  • 1 mentions across 1 observed day

What's happening

  • 1 total mentions across 1 day

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-10-15: 110-15
Referenced assets1 URL
By indicator
Full discourse1 post
  • Armadin@ArmadinSecurity

    Armadin researcher @mhskai2017 has uncovered an authenticated RCE vulnerability in Skype for Business Server (CVE-2026-70297, CVSS 8.8). An attacker can exploit a path traversal vulnerability to write arbitrary files to the server while holding a valid token that can access any chat room with file-upload feature supported. No user interaction required. Patch immediately. Updates are available for Skype for Business Server 2019 CU8, 2015 CU13, and Subscription Edition CU1. Microsoft advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70297

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