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-2026-77909

CVE-2026-77909MEDIUM

Microsoft Azure CycleCloud 8.9.2 — Azure CycleCloud Information Disclosure Vulnerability

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   N   L   L   N  U  H  N  N    6.5   .0058   45.7     —

AFFECTED
  Product                 Versions  Fixed
  Azure CycleCloud 8.9.2  8.9.2 –   —

TIMELINE
  Aug 21  Reserved by microsoft
  Sep 8   Published (CNA: microsoft)
  Sep 29  RESCORED — CVE-2026-77909 (Microsoft Azure CycleCloud 8.9.2). CVSS 7.7 → 6.5 (NVD).

CWE-522 · CNA: microsoft · CVSS v3.1 · 1 reference · NVD status: Analyzed

Description

Insufficiently protected credentials in Azure CycleCloud allows an authorized attacker to disclose information over a network.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
August 21, 2026	Reserved	Reserved by microsoft
September 8, 2026	Published	Published (CNA: microsoft)
September 29, 2026	RESCORED	RESCORED — CVE-2026-77909 (Microsoft Azure CycleCloud 8.9.2). CVSS 7.7 → 6.5 (NVD).

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
Microsoft	Azure CycleCloud 8.9.2	—	8.9.2	—

Weaknesses

CWE-522

References (1)

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-77909 [vendor-advisory, patch]

Authoritative record: CVE-2026-77909 at cve.org

Vendors: microsoft

Weaknesses: CWE-522

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-77909 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.