CVE-2025-36116Network attack vector

Unauthorized operations via unvalidated WebSocket origins

Published Jul 23, 2025 · Updated Aug 18, 2025

Cross-site WebSocket hijacking in IBM Db2 Mirror GUI versions 7.4, 7.5, and 7.6 allows remote attackers to perform unauthorized operations. The GUI accepts a crafted cross-origin WebSocket request without validating the Origin header, allowing attachment to and observation of an existing authenticated connection. Exploitation requires an active victim connection and browser interaction; resulting actions remain bounded by the victim account privileges.

CVSS severity6.3
Medium
EPSS probability0.16%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site WebSocket hijacking in IBM Db2 Mirror GUI versions 7.4, 7.5, and 7.6 allows remote attackers to perform unauthorized operations. The GUI accepts a crafted cross-origin WebSocket request without validating the Origin header, allowing attachment to and observation of an existing authenticated connection. Exploitation requires an active victim connection and browser interaction; resulting actions remain bounded by the victim account privileges.

The record

CVE
CVE-2025-36116
Published
Jul 23, 2025
Updated
Aug 18, 2025
Vendor
IBM
Product
IBM Db2 Mirror for i
Classifications
CWE-1385, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 23, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 18, 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=7.4, 7.5, 7.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

IBM · IBM Db2 Mirror for iversion=7.4, 7.5, 7.6

Published CVSS scores

6.3IBMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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-1385Missing Origin Validation in WebSockets
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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