CVE-2025-26683Network attack vector

Unauthenticated privilege elevation via undisclosed authorization flaw

Published Mar 31, 2025 · Updated Aug 10, 2026

Improper authorization in Microsoft Azure Playwright allows remote attackers to elevate privileges through the hosted service. Microsoft has not disclosed the affected service operation or the authorization check that mishandles untrusted requests. Exploitation requires no credentials or user interaction but depends on unspecified high-complexity conditions, and successful attacks can compromise hosted data and service availability.

CVSS severity8.1
High
EPSS probability0.67%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper authorization in Microsoft Azure Playwright allows remote attackers to elevate privileges through the hosted service. Microsoft has not disclosed the affected service operation or the authorization check that mishandles untrusted requests. Exploitation requires no credentials or user interaction but depends on unspecified high-complexity conditions, and successful attacks can compromise hosted data and service availability.

The record

CVE
CVE-2025-26683
Published
Mar 31, 2025
Updated
Aug 10, 2026
Vendor
Microsoft
Product
Azure Playwright
Classifications
CWE-285, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 31, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 10, 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?

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  1. Affected versionversion=-

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Microsoft · Azure Playwrightversion=-

Published CVSS scores

8.1MicrosoftCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-285Improper Authorization
T1190Exploit Public-Facing Application

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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