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CVE Record

CVE-2026-33105: Microsoft Azure Kubernetes Service Elevation of Privilege Vulnerability

Improper authorization in Microsoft Azure Kubernetes Service allows an unauthorized attacker to elevate privileges over a network.

CriticalCVSS 10Not KEV-listedUpdated
Glexia's TakeAutomated analysiscritical

Security readout for executives and security teams

Plain-English summary

A Microsoft Azure Kubernetes Service authorization flaw could let an unauthenticated network attacker gain elevated privileges. Successful exploitation could expose data, permit unauthorized changes, and disrupt affected services. The supplied sources do not identify affected versions or tenant configurations, so organizations using AKS should promptly confirm applicability with Microsoft.

Executive priority

Treat this as an immediate exposure-validation and remediation priority because the potential impact is complete compromise across security objectives. Do not claim confirmed compromise or active exploitation without additional evidence. Require owners to identify AKS deployments, establish applicability, and document remediation status promptly.

Technical view

CVE-2026-33105 is an improper-authorization vulnerability, classified as CWE-285. Its CVSS 3.1 score is 10.0, indicating network access, low complexity, no privileges, no user interaction, changed scope, and high confidentiality, integrity, and availability impact. The bundle provides no affected-version boundaries or CPEs.

Likely exposure

Potential exposure includes organizations running Azure Kubernetes Service, but the supplied record provides no affected versions, configurations, or CPEs. Actual tenant exposure cannot be determined from this bundle alone and requires comparison with Microsoft's advisory and Azure environment inventory.

Exploitation context

The CVSS vector describes remote, unauthenticated exploitation with low complexity. However, the bundle marks the CVE as absent from KEV and provides no evidence of active exploitation or a public exploit. Exploitation status should therefore be treated as unconfirmed.

Researcher notes

The record supports a critical authorization failure but lacks affected-version ranges, configuration prerequisites, technical root-cause detail, indicators, and remediation specifics. CVSS reports exploit maturity as unproven and remediation level as official fix. Researchers should rely on Microsoft for applicability and avoid inferring that every AKS deployment is vulnerable.

Mitigation direction

  • Review Microsoft's advisory immediately for current applicability and remediation instructions.
  • Inventory all Azure subscriptions and identify every Azure Kubernetes Service deployment.
  • Apply Microsoft-prescribed remediation to affected deployments within an emergency change window.
  • Confirm with Microsoft whether remediation is platform-managed or requires customer action.
  • Temporarily reduce unnecessary network exposure while applicability remains unresolved.

Validation and detection

  • Compare each AKS deployment against the applicability details in Microsoft's advisory.
  • Verify every affected deployment reports the Microsoft-prescribed remediation state.
  • Confirm no AKS subscriptions or clusters were omitted from the inventory.
  • Review relevant authorization and administrative logs for unexplained privilege changes.
  • Recheck Microsoft's advisory for revisions following the August 14, 2026 record update.
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 · low confidence lookup

CWE-285: Exact CWE lookup

Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. 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
description · low confidence lookup

Privilege behavior lookup

The CVE wording references privilege impact, so privilege escalation and authorization behavior review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
description · low confidence lookup

Container behavior lookup

The affected technology mentions containers, so container-specific ATT&CK technique review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2026-33105 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
Critical
CVSS
10 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/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: yesTechnical 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
10CVSS 3.1CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C3.96microsoft

Vulnerability scoring details

Base CVSS 3.1 score

10Critical
CVSS 3.1 vector shape for CVE-2026-33105Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/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 Kubernetes Service-Listed
Weakness

CWE details

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

CWE-285 · source CWE mapping

Improper Authorization

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