CVE-2026-118288

Microsoft Azure File Sync Elevation of Privilege Vulnerability

Products / packages Microsoft Azure File Sync · Microsoft Azure File Sync v22

Published 10/11/2026, 18:24:14 UTC

Severity and exploitation

Not in CISA KEV

KEV coverage does not rule out exploitation.

KEV checked 14/11/2026, 22:00:33 UTC

microsoft · CVSS:3.1 · 7

Assessment vector

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

Severity

high7.0

CVSS measures technical severity, not the likelihood of an attack.

Known exploitation

Not listed in the checked CISA KEV catalog

Absence from CISA KEV does not rule out attacks.

Public exploit

Not established by this record

Missing evidence does not mean no public exploit exists.

Remediation

Fix status not established

No structured fix or guidance is available here. Check the latest publisher advisory.

What this means

Microsoft Azure File Sync versions 1.0.0, 1.0.0.0, and 23.1.0.0 have an elevation of privilege vulnerability due to incorrect permission assignment, allowing an authorized attacker to elevate privileges locally. The vulnerability is caused by CWE-732: Incorrect Permission Assignment for Critical Resource. Affected versions are less than 23.2.

Summarized by @cf/meta/llama-3.3-70b-instruct-fp8-fast. Verify details against the original sources.

Attack conditions

No attack-condition excerpt has been identified here. Review the full source description and references for authentication, network access, and configuration requirements.

Review supporting sources →

Affected versions

Check the exact model, release, and any platform requirements against your installation.

Microsoft · microsoft

Azure File Sync

1 range

microsoft version evidence

Check a product version

Compare with this publisher’s ranges. This does not inspect your installation.

affected

23.1.0.0 → before 23.2

custom versions

Other versions: unknown

Microsoft · microsoft

Azure File Sync

1 range

microsoft version evidence

Check a product version

Compare with this publisher’s ranges. This does not inspect your installation.

affected

1.0.0 → before 23.2

custom versions

Other versions: unknown

Microsoft · microsoft

Azure File Sync v22

1 range

microsoft version evidence

Platforms: x64-based Systems

Check a product version

Compare with this publisher’s ranges. This does not inspect your installation.

affected

1.0.0.0 → before 23.2

custom versions

Other versions: unknown

Automatic dependency matching is unavailable for this record. Use the product evidence and publisher’s instructions to check your installation.

What to do

Compare your installed product and version with the affected versions above. A matching product name alone does not confirm exposure.

No structured fix or remediation guidance is available here. Check the full source description and vendor’s latest advisory for a patch or workaround; do not assume another version is safe.

cve.new guidance unless attributed to a publisher. This page does not inspect your installation.

Public exploit evidence

No public exploit reference is identified in the imported evidence. This is not a claim that no exploit exists.

Original source description

Read the full publisher description

Incorrect permission assignment for critical resource in Azure File Sync allows an authorized attacker to elevate privileges locally.

References

1 sources

msrc.microsoft.com/update-guide/vulnerability/CVE-2026-118288

Vendor advisorymicrosoft

Inside the record

Evidence available

Package identity · not supplied

Version evidence

Remediation guidance · not supplied

Weakness classification

Additional publishers

Describes the evidence in this view, not whether the product is safe.

Original records

CVE-2026-118288

View the latest unmodified CVE JSON from the official source. It may be newer than this imported page.

cve.new JSON →

Underlying weaknesses

The source’s classification of what caused the vulnerability.

CWE-732 ↗

CWE-732: Incorrect Permission Assignment for Critical Resource

microsoft

Environment requirements

These conditions apply together as specified by the publisher. A matching product name alone does not establish exposure.

microsoft · platform conditions

Any condition may hold

Vulnerable product

cpe:2.3:a:microsoft:azure_file_sync:*:*:*:*:*:*:*:*

From (inclusive): 23.1.0.0

After:

Through (inclusive):

Before: 23.2

Vulnerable product

cpe:2.3:a:microsoft:azure_file_sync:*:*:*:*:*:*:*:*

From (inclusive): 1.0.0

After:

Through (inclusive):

Before: 23.2

Vulnerable product

cpe:2.3:a:microsoft:azure_file_sync_v22:*:*:*:*:*:*:*:*

From (inclusive): 1.0.0.0

After:

Through (inclusive):

Before: 23.2

Applicability preview

[
  {
    "nodes": [
      {
        "operator": "OR",
        "negate": false,
        "cpeMatch": [
          {
            "vulnerable": true,
            "criteria": "cpe:2.3:a:microsoft:azure_file_sync:*:*:*:*:*:*:*:*",
            "versionStartIncluding": "23.1.0.0",
            "versionEndExcluding": "23.2"
          },
          {
            "vulnerable": true,
            "criteria": "cpe:2.3:a:microsoft:azure_file_sync:*:*:*:*:*:*:*:*",
            "versionStartIncluding": "1.0.0",
            "versionEndExcluding": "23.2"
          },
          {
            "vulnerable": true,
            "criteria": "cpe:2.3:a:microsoft:azure_file_sync_v22:*:*:*:*:*:*:*:*",
            "versionStartIncluding": "1.0.0.0",
            "versionEndExcluding": "23.2"
          }
        ]
      }
    ]
  }
]

Contributing organizations · 2

microsoft

Assigning organization

2026-11-13

CISA-ADP

Additional data publisher

2026-11-10

Timeline

All times UTC

10 Nov 2026, 18:24
Advisory published
Publication date supplied by the source.
13 Nov 2026, 18:12
Source updated
Latest modification date supplied by the source.
13 Nov 2026, 19:39
Last imported by cve.new
Latest catalog import, not the date we first saw this advisory.

What changed

Follow changes

CVE · CVE-2026-1182882026-11-10

Observed 2026-11-10T20:08:11.086Z · upstream updated 2026-11-10T19:48:55.474Z

Prioritization updated

before

[]

after

[
  {
    "source": "CISA-ADP",
    "type": "SSVC",
    "role": "CISA Coordinator",
    "timestamp": "2026-11-10T19:38:58.332767Z",
    "decisions": [
      {
        "name": "Exploitation",
        "value": "none"
      },
      {
        "name": "Automatable",
        "value": "no"
      },
      {
        "name": "Technical Impact",
        "value": "total"
      }
    ]
  }
]

Large field values are marked as truncated previews. Original source snapshots remain retained.

Showing up to 50 most recent observed changes.

Reading the signals

Severity · CVSS: Technical impact and attack conditions. The headline is the highest imported catalog score; sources may disagree.
Observed exploitation · KEV: An absent or unavailable KEV listing does not establish that exploitation has not occurred.
Predicted exploitation · EPSS: No EPSS estimate available in this record.

CISA-ADP · SSVC

CISA Coordinator · 2026-11-10

Exploitation: none
Automatable: no
Technical Impact: total

SSVC describes the publisher’s decision context. Your organization’s exposure and priorities may differ.

Record identifiers

Aliases: None recorded

Source evidence

Request a correction or dispute

Start with the assigning organization for this record. Include the CVE ID, the disputed information, and supporting evidence. A dispute does not itself reject a record.

Find the responsible CNA →Official dispute and escalation process ↗

CVE CVE-2026-118288