Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
-
AccessReach VM Inspector over network
-
DeliveryPlant attacker-controlled link target
-
ExploitTrigger insecure link resolution before file access
-
ExecutionRedirect privileged file operation
-
ImpactElevate privileges across security scope
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V5 - File Handling Symlink resolution safety
|
| Exploitation Conditions | Exploitation requires the attacker to influence a link (symbolic link or junction) that the VM Inspector for Azure Virtual Machines component resolves before accessing a file, per CWE-59; the specific product feature, protocol, or configuration that exposes this link-resolution path is not described in the available sources. Per the vendor CVSS vector (PR:N/UI:N/AV:N) no authentication or user interaction is required and the attack is reachable over a network, with a scope change (S:C) indicating impact beyond the initially vulnerable component. A limiting factor to note for defenders: CWE-59 link-following conditions normally depend on the attacker being able to place or control a link on a filesystem the service accesses, which the AV:N/PR:N vector does not reconcile in the supplied data - verify reachability assumptions with Microsoft. |
| Impact | Signals are strongly aligned toward high priority. The vendor-assigned CVSS 3.1 base vector (AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H) rates this 10.0 - network-reachable, no privileges, no user interaction, with a scope change and total confidentiality/integrity/availability impact - and the vuln.today decision label is act_now with an official fix available (RL:O) and confirmed report confidence (RC:C). However, the temporal metrics temper the urgency somewhat: E:U means exploit code is Unproven, and no EPSS score, no CISA KEV listing, and no PoC reference are present in the input, so this is not confirmed as actively exploited. The result is a maximal theoretical severity (perfect base score for a scope-changing, unauthenticated network EoP in an Azure service) paired with no evidence of real-world exploitation yet - consistent with a freshly disclosed, vendor-reported (Microsoft) flaw that warrants prompt patching but is not yet weaponized. One tension to verify: CWE-59 ('link following') typically involves local filesystem symlink/junction manipulation, yet the vector marks AV:N/PR:N ('unauthorized attacker... over a network'); the available sources do not describe the trigger, so how a network-positioned, unauthenticated attacker reaches the link-resolution path in this Azure service is unexplained and should be confirmed with Microsoft. |
| Exploit ScenarioDerived | An unauthorized attacker interacts with the network-exposed VM Inspector component for Azure Virtual Machines and causes it to resolve an attacker-influenced link (symlink/junction) during a file-access operation, redirecting that access to a privileged target and elevating privileges across a security boundary (scope change). No public exploit code is identified at time of analysis (CVSS temporal E:U, Unproven), and the exact trigger is not described in the available sources. |
Get an e-mail when this CVE is exploited, patched or re-scored. Free account.
Alert meAnalysisAIv1 – Oct 22, 2026
Privilege escalation in Microsoft VM Inspector for Azure Virtual Machines allows unauthenticated, network-reachable attackers with no user interaction to gain elevated privileges, and the vendor scores it CVSS 10.0 with a scope change (S:C) indicating impact extends beyond the initially vulnerable component. The root cause is a link-following defect (CWE-59): the component resolves a link before accessing a file, so an attacker who can influence a symbolic link or junction can redirect privileged file operations. Microsoft has published a fix through its MSRC update guide and the vuln.today priority is act_now; no public exploit code or CISA KEV entry was identified at time of analysis.
RemediationAI
Apply the update published in Microsoft's MSRC update guide for CVE-2026-110063 (https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-110063); the supplied data states a patch is available from the vendor but does not list an exact fixed version number, so confirm the applicable build for your deployment on that advisory before closing the item. Because the defect is a link-following issue resolved before file access, upgrading the VM Inspector component is the only remediation the available sources describe, and no alternative workaround is documented. Given the CVSS 10.0 severity, PR:N/UI:N network reachability and the act_now priority, treat unpatched instances as high exposure, and validate with Microsoft whether the network-reachable, unauthenticated attack path applies to your configuration, since CWE-59 preconditions normally require an attacker-influenced link on a filesystem the service accesses.
Affected VersionsENISA
Affects your stack
Find out whether the stacks and servers you run are on an affected version.
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
CWE-59 (Improper Link Resolution Before File Access, 'link following') is the class where software resolves a pathname containing a symbolic link or NTFS junction before performing a privileged file read, write or execution, so whoever controls the link controls the resource the process actually touches. The affected component here is Microsoft's VM Inspector for Azure Virtual Machines, identified by the wildcard CPE cpe:2.3:a:microsoft:vm_inspector_for_azure_virtual_machines:*:*:*:*:*:*:*:*, meaning the supplied data does not enumerate specific affected or fixed builds. The assessed vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H describes a low-complexity, network-reachable attack requiring no credentials and no user interaction, with high confidentiality, integrity and availability impact and a scope change. That vector is notable against the CWE class: link-following conditions normally depend on the attacker being able to place or control a link on a filesystem the service accesses, which a pure AV:N/PR:N path does not by itself explain - the specific feature, protocol or configuration that exposes the link-resolution path is not described in the available sources and should be verified with Microsoft rather than assumed.
Know when Vm Inspector For Azure Virtual Machines gets its next vulnerability
- Watch products and get an email when something new is published
- Check this CVE against your own stack and servers
- Exploit and PoC references, threat intelligence from 22 sources
No credit card · 7-day full trial
Severity by source
AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Description states an unauthorized attacker elevates privileges over a network (AV:N/PR:N/UI:N), and the cross-boundary privilege gain in a cloud service supports S:C with full C/I/A impact.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
DescriptionCVE.org
Improper link resolution before file access ('link following') in VM Inspector for Azure Virtual Machines allows an unauthorized attacker to elevate privileges over a network.
Executive ViewAI
Microsoft VM Inspector for Azure Virtual Machines contains a critical privilege escalation vulnerability (CVE-2026-110063) that allows unauthenticated, network-reachable attackers to gain elevated privileges with no user interaction. Successful exploitation could lead to full compromise of the VM Inspector service and potentially allow attackers to move laterally within Azure environments, impacting confidentiality, integrity, and availability of cloud workloads and sensitive data.
Apply vendor patch.
Threat Intelligence Overview
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.
EUVD-2026-108542
GHSA-pjxp-pqhh-mc2x
NVD
CVE.org
EPSS
Vulnrichment
Exploit-DB