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CVE-2026-62839medium6.5

Microsoft SharePoint Server Spoofing Vulnerability

Impact

Microsoft SharePoint Server has a spoofing vulnerability due to insufficiently protected credentials, affecting versions less than 16.0.5565.1001, 16.0.10417.20198, and 16.0.19725.20522 of Enterprise Server 2016, Server 2019, and Server Subscription Edition respectively. An authorized attacker can perform spoofing over a network. The weakness is insufficiently protected credentials.

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

Affected packages

This source has no supported package-version data for matching. You can read the advisory here, but this record alone cannot power a dependency check.

Affected products

Vendor version evidence. Product records are separate from automatic dependency matching.

Microsoft · microsoft

Microsoft SharePoint Enterprise Server 2016

1 range
Platforms: x64-based Systems

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

affected

16.0.0 → before 16.0.5565.1001

custom versions

unaffected

unknown

Other versions: unknown

Microsoft · microsoft

Microsoft SharePoint Server 2019

1 range
Platforms: x64-based Systems

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

affected

16.0.0 → before 16.0.10417.20198

custom versions

unaffected

unknown

Other versions: unknown

Microsoft · microsoft

Microsoft SharePoint Server Subscription Edition

1 range
Platforms: x64-based Systems

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

affected

16.0.0 → before 16.0.19725.20522

custom versions

unaffected

unknown

Other versions: unknown

Original source description

Insufficiently protected credentials in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.

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-2026-62839

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-522 ↗

CWE-522: Insufficiently Protected Credentials

microsoft

Related →

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:sharepoint_server_2016:*:*:*:*:enterprise:*:*:*

From (inclusive): 16.0.0

Before: 16.0.5565.1001

Vulnerable product

cpe:2.3:a:microsoft:sharepoint_server_2019:*:*:*:*:*:*:*:*

From (inclusive): 16.0.0

Before: 16.0.10417.20198

Vulnerable product

cpe:2.3:a:microsoft:sharepoint_server:*:*:*:*:subscription:*:*:*

From (inclusive): 16.0.0

Before: 16.0.19725.20522

Original applicability statements
[
  {
    "nodes": [
      {
        "operator": "OR",
        "negate": false,
        "cpeMatch": [
          {
            "vulnerable": true,
            "criteria": "cpe:2.3:a:microsoft:sharepoint_server_2016:*:*:*:*:enterprise:*:*:*",
            "versionStartIncluding": "16.0.0",
            "versionEndExcluding": "16.0.5565.1001"
          },
          {
            "vulnerable": true,
            "criteria": "cpe:2.3:a:microsoft:sharepoint_server_2019:*:*:*:*:*:*:*:*",
            "versionStartIncluding": "16.0.0",
            "versionEndExcluding": "16.0.10417.20198"
          },
          {
            "vulnerable": true,
            "criteria": "cpe:2.3:a:microsoft:sharepoint_server:*:*:*:*:subscription:*:*:*",
            "versionStartIncluding": "16.0.0",
            "versionEndExcluding": "16.0.19725.20522"
          }
        ]
      }
    ]
  }
]
Contributing organizations · 2
microsoft

Assigning organization

2026-10-30
CISA-ADP

Additional data publisher

2026-08-13

What changed

Follow changes
No substantive changes have been recorded here yet. History starts when cve.new observes a change after tracking is enabled; earlier edits are not reconstructed.

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

References

1 sources