LiveActive security incident?Get immediate response
CVE Record

CVE-2025-26628: Azure Local Cluster Information Disclosure Vulnerability

Insufficiently protected credentials in Azure Local Cluster allows an authorized attacker to disclose information locally.

HighCVSS 7.3Not KEV-listedUpdated
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

Azure Local Cluster 1.0.0 may inadequately protect credentials. A locally authorized attacker with low privileges could expose sensitive information and potentially affect data integrity or service availability. Exploitation requires local access; the supplied sources do not establish remote or unauthenticated exploitation.

Executive priority

Prioritize prompt validation and remediation on Azure Local Cluster 1.0.0 systems, especially those with broad local access or sensitive credentials. The high rating warrants accelerated handling, although the local-access requirement and absence of confirmed active exploitation reduce emergency-level urgency.

Technical view

CVE-2025-26628 is a CWE-522 credential-protection weakness in Microsoft Azure Local Cluster 1.0.0. Its CVSS 3.1 score is 7.3, with local attack vector, low complexity, low privileges, and no user interaction. The vector indicates high confidentiality and integrity impact and low availability impact.

Likely exposure

Exposure is indicated for Azure Local Cluster version 1.0.0. Risk is concentrated where untrusted or compromised low-privilege users can obtain local authorized access. The bundle provides no CPEs, affected build ranges, or deployment-specific prerequisites, so administrators should confirm applicability through Microsoft’s advisory.

Exploitation context

The CVE is not listed in CISA KEV within the supplied bundle. No cited source establishes active exploitation or publicly available exploitation. The attack requires local access and low privileges, reducing reach compared with a remote flaw but increasing insider and post-compromise risk.

Researcher notes

The supplied record identifies CWE-522 and version 1.0.0 but provides no CPEs, affected build boundaries, patch identifiers, technical root-cause detail, or exploitation telemetry. Treat broader version exposure as unconfirmed. The CVSS vector includes integrity and availability effects despite the information-disclosure title.

Mitigation direction

  • Review Microsoft’s CVE advisory and apply the identified security update after confirming applicability.
  • Restrict local cluster access to necessary, trusted administrators and service identities.
  • Review privileges assigned to local users and remove unnecessary authorization.
  • Rotate potentially exposed credentials if investigation identifies suspicious access.

Validation and detection

  • Inventory Azure Local Cluster deployments and identify systems running version 1.0.0.
  • Compare each cluster’s update status with Microsoft’s CVE advisory.
  • Review local accounts and service identities capable of accessing affected clusters.
  • Investigate unusual access to credentials or sensitive cluster information.
Prepared
Confidence
medium
Sources
3

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · medium confidence lookup

CWE-522: Credential and account abuse lookup

Authentication and credential weaknesses can make valid-account abuse and credential telemetry useful review starting points. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2025-26628 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
High
CVSS
7.3 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L/E:U/RL:O/RC:C

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
3Timeline events
1ADP providers
2Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: noTechnical Impact: total

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
7.3CVSS 3.1HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L/E:U/RL:O/RC:C1.85.5microsoft

Vulnerability scoring details

Base CVSS 3.1 score

7.3High
CVSS 3.1 vector shape for CVE-2025-26628Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L/E:U/RL:O/RC:C

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
other:ssvc

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
MicrosoftAzure Local Cluster1.0.0Listed
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-522 · source CWE mapping

Insufficiently Protected Credentials

Insufficiently Protected Credentials represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.