Security readout for executives and security teams
Plain-English summary
A network-based attacker could bypass authentication in Azure Local Disconnected Operations and gain elevated privileges without credentials or user interaction. Successful exploitation could compromise confidentiality, integrity, and availability across affected security boundaries.
Executive priority
Treat as an urgent remediation item because unauthenticated network exploitation could produce complete system impact. Prioritize reachable Azure Local 1.0.0 deployments, while avoiding claims of an active campaign without supporting evidence.
Technical view
CVE-2026-42822 is a CWE-287 improper-authentication flaw affecting Microsoft Azure Local 1.0.0. Its CVSS 3.1 score is 10.0, with network access, low complexity, no privileges, no user interaction, changed scope, and high impact across confidentiality, integrity, and availability.
Likely exposure
Exposure is indicated for environments running Azure Local 1.0.0, particularly where Disconnected Operations services are reachable over a network. The supplied sources do not identify specific ports, components, configurations, or prerequisites, so actual exposure requires environment-specific validation.
Exploitation context
The supplied record does not establish active exploitation, and the CVE is not listed as KEV in the bundle. Its CVSS temporal vector marks exploit maturity as unproven, although the unauthenticated network attack path creates substantial potential risk.
Researcher notes
Public details supplied here establish improper authentication and privilege elevation but omit the vulnerable interface, protocol, root cause, prerequisites, and fixed version. Researchers and defenders should rely on Microsoft’s advisory for remediation details and avoid inferring unsupported attack mechanics.
Mitigation direction
- Identify every Azure Local 1.0.0 deployment and its Disconnected Operations configuration.
- Review the Microsoft advisory and apply its vendor-provided patch or supported update promptly.
- Restrict affected management services to trusted networks while remediation is pending.
- Monitor authentication and privilege activity for unexpected or unauthorized behavior.
Validation and detection
- Verify deployed Azure Local versions using authoritative asset and configuration records.
- Determine whether Disconnected Operations interfaces are reachable from untrusted or unnecessary networks.
- Confirm the Microsoft-recommended remediation is installed on every affected deployment.
- Review relevant logs for unexplained authentication bypasses, privilege changes, or administrative actions.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
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-287: 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 lookupPrivilege 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 lookupCVE-2026-42822 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- 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
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.
SSVC decision data
CVSS vector scores
1 official scoreWe 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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C3.96microsoftVulnerability scoring details
Base CVSS 3.1 score
10CriticalVector: 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
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- Azure Local Disconnected Operations (ALDO) Elevation of Privilege VulnerabilityCVE reference, microsoft · vendor-advisory, patch
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Authentication
Improper Authentication represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.