CVE-2026-62837Network attack vector

Information disclosure via relative path traversal

Published Aug 11, 2026 · Updated Aug 25, 2026

Relative path traversal in Microsoft SharePoint Server allows remote authenticated users to read restricted content over a network. Microsoft has disclosed only that SharePoint improperly restricts relative path input when resolving a path that should remain within an allowed directory; the vulnerable file, endpoint, and parameter are not public. Low privileges are required, and the published impact is limited to confidentiality, with no vendor evidence of data modification or service interruption.

CVSS severity6.5
Medium
EPSS probability0.86%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Relative path traversal in Microsoft SharePoint Server allows remote authenticated users to read restricted content over a network. Microsoft has disclosed only that SharePoint improperly restricts relative path input when resolving a path that should remain within an allowed directory; the vulnerable file, endpoint, and parameter are not public. Low privileges are required, and the published impact is limited to confidentiality, with no vendor evidence of data modification or service interruption.

The record

CVE
CVE-2026-62837
Published
Aug 11, 2026
Updated
Aug 25, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-23, T1005
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 11, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 25, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.5Microsoft CorporationCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-23Relative Path Traversal
T1005Data from Local System

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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