CVE-2023-26273Network attack vector

Authenticated unauthorized actions via undisclosed input validation

Published Jun 27, 2023 · Updated Nov 6, 2024

Improper input validation in IBM QRadar SIEM 7.5.0 through 7.5.0 UP5 allows remote authenticated users to perform unauthorized actions. IBM has not disclosed the affected interface, accepted input, or validation operation, so the precise request and code path remain undisclosed. Exploitation requires a low-privileged authenticated network session and permits integrity-impacting actions, with no reported data disclosure or service interruption.

CVSS severity4.3
Medium
EPSS probability0.44%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper input validation in IBM QRadar SIEM 7.5.0 through 7.5.0 UP5 allows remote authenticated users to perform unauthorized actions. IBM has not disclosed the affected interface, accepted input, or validation operation, so the precise request and code path remain undisclosed. Exploitation requires a low-privileged authenticated network session and permits integrity-impacting actions, with no reported data disclosure or service interruption.

The record

CVE
CVE-2023-26273
Published
Jun 27, 2023
Updated
Nov 6, 2024
Vendor
IBM
Product
QRadar SIEM
Classifications
CWE-20
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 27, 2023CVE publishedPublication date reported by the CVE source.
  2. Nov 6, 2024Record 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=7.5.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

IBM · QRadar SIEMversion=7.5.0

Published CVSS scores

4.3IBM Security BulletinCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
4.3IBM CNACVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/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.

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-20Improper Input Validation

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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