CVE-2026-1567Network attack vector

Authenticated information disclosure via external XML entities

Published Mar 3, 2026 · Updated Mar 3, 2026

XXE in IBM InfoSphere Information Server 11.7.0.0 through 11.7.1.6 allows remote authenticated users to retrieve server data. IBM identifies external entity processing as the flaw but does not disclose the affected XML parser, input path, or operation that resolves attacker-controlled entities. Network access and a low-privileged account are required; exploitation exposes sensitive server information without user interaction.

CVSS severity7.1
High
EPSS probability0.31%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

XXE in IBM InfoSphere Information Server 11.7.0.0 through 11.7.1.6 allows remote authenticated users to retrieve server data. IBM identifies external entity processing as the flaw but does not disclose the affected XML parser, input path, or operation that resolves attacker-controlled entities. Network access and a low-privileged account are required; exploitation exposes sensitive server information without user interaction.

The record

CVE
CVE-2026-1567
Published
Mar 3, 2026
Updated
Mar 3, 2026
Vendor
IBM
Product
InfoSphere Information Server
Classifications
CWE-611
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 3, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 3, 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?

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

  1. Affected versionversion=11.7.0.0 <=11.7.1.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

IBM · InfoSphere Information Serverversion=11.7.0.0 <=11.7.1.6

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
7.1IBMCVSS:3.1/AV:N/AC:L/PR:L/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.

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

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-611Improper Restriction of XML External Entity Reference

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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