CVE-2026-77909

Azure CycleCloud Information Disclosure Vulnerability

Published Sep 8, 2026 CVSS 3.1 · 7.7 High EPSS < 1% KEV · Not listed
Description
Insufficiently protected credentials in Azure CycleCloud allows an authorized attacker to disclose information over a network.

Analysis

AI-generated

Technical impact

This vulnerability results from credentials that are insufficiently protected within Azure CycleCloud. An attacker who already has authorized access can exploit this weakness to retrieve sensitive information over the network, potentially aiding further compromise or data exfiltration. The flaw is associated with CWE-522, indicating that credential information may be exposed during normal operation.

Affected Systems

Microsoft Azure CycleCloud version 8.9.2 is known to be affected. No other product versions were listed in the CNA data, so the scope is limited to this specific release.

Risk and Exploitability

The CVSS score of 7.7 classifies the vulnerability as high. EPSS data is not available, so the exact likelihood of exploitation cannot be quantified, but the vulnerability is not currently listed in CISA’s KEV catalog, suggesting it has not yet been widely employed in the wild. Since the attack vector requires an attacker who has already bypassed initial controls, the risk is concentrated on systems where privileged or authorized accounts exist. Remediation is recommended before the vulnerability becomes a vector for broader attacks.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Update Azure CycleCloud to the latest patched version that resolves the credential exposure, following instructions on Microsoft’s security update guide.
  • Enforce multi‑factor authentication and enforce the principle of least privilege for all accounts that interact with Azure CycleCloud services.
  • Configure network segmentation to limit exposure of credential‑handling endpoints and ensure all traffic is encrypted.

Generated by OpenCVE AI on September 9, 2026 at 21:29 UTC.

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description Insufficiently protected credentials in Azure CycleCloud allows an authorized attacker to disclose information over a network.
Title Azure CycleCloud Information Disclosure Vulnerability
First Time appeared Microsoft
Microsoft azure Cyclecloud
Weaknesses CWE-522
CPEs cpe:2.3:a:microsoft:azure_cyclecloud:*:*:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft azure Cyclecloud
References
Metrics cvssV3_1

{'score': 7.7, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N/E:U/RL:O/RC:C'}

Weaknesses
  • CWE-522

    Insufficiently Protected Credentials

Sources

Status
PUBLISHED
Assigner
microsoft
Published
Updated
Nov 10, 2026, 9:32 PM
Reserved
Aug 21, 2026, 5:26 PM
Status
Analyzed
Published
Sep 8, 2026, 6:20 PM
Modified
Sep 29, 2026, 7:40 PM