CVE-2025-59683Network attack vector

Data disclosure and DoS via access-control failure

Published Dec 25, 2025 · Updated Dec 25, 2025

Improper access control in Pexip Infinity 15.0 through 38.0 allows remote attackers to read sensitive data and exhaust resources. The Secure Scheduler for Exchange fails to enforce access restrictions when processing Office 365 Legacy Exchange Tokens; Pexip has not disclosed the specific authorization check omitted. Exposure requires an Office 365 Scheduler integration using legacy tokens, and exploitation discloses potentially sensitive data or interrupts service through excessive resource consumption.

CVSS severity8.2
High
EPSS probability0.32%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in Pexip Infinity 15.0 through 38.0 allows remote attackers to read sensitive data and exhaust resources. The Secure Scheduler for Exchange fails to enforce access restrictions when processing Office 365 Legacy Exchange Tokens; Pexip has not disclosed the specific authorization check omitted. Exposure requires an Office 365 Scheduler integration using legacy tokens, and exploitation discloses potentially sensitive data or interrupts service through excessive resource consumption.

The record

CVE
CVE-2025-59683
Published
Dec 25, 2025
Updated
Dec 25, 2025
Vendor
Pexip
Product
Pexip Infinity
Classifications
CWE-863, T1499.003
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 25, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 25, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=15.0 <38.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Pexip · Pexip Infinityversion=15.0 <38.1

Published CVSS scores

8.2PexipCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-863Incorrect Authorization
T1499.003Application Exhaustion Flood

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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