Reference page — cumulative record through Saturday, October 3, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-69559

CVE-2026-69559MEDIUM

Microsoft Teams for Android Information Disclosure Vulnerability

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   N   H   L   N  C  H  N  N    6.3   .0032   22.8     —

AFFECTED
  Product                      Versions  Fixed
  Microsoft Teams for Android  1.0.0 –   —

TIMELINE
  Aug 3   Reserved by microsoft
  Sep 8   Published (CNA: microsoft)
  Sep 29  RESCORED — CVE-2026-69559 (Microsoft Teams for Android). CVSS 5.8 → 6.3 (NVD).

CWE-346 · CNA: microsoft · CVSS v3.1 · 1 reference · NVD status: Analyzed

Description

Origin validation error in Microsoft Teams for Android allows an authorized attacker to disclose information over a network.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
August 3, 2026	Reserved	Reserved by microsoft
September 8, 2026	Published	Published (CNA: microsoft)
September 29, 2026	RESCORED	RESCORED — CVE-2026-69559 (Microsoft Teams for Android). CVSS 5.8 → 6.3 (NVD).

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
Microsoft	Microsoft Teams for Android	—	1.0.0	—

Weaknesses

CWE-346

References (1)

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69559 [vendor-advisory, patch]

Authoritative record: CVE-2026-69559 at cve.org

Vendors: microsoft

Weaknesses: CWE-346

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-69559 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Saturday, October 3, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.