CVE-2023-40375

Root access via undisclosed base OS flaw

Published Sep 28, 2023 · Updated Sep 23, 2024

Local privilege escalation in IBM’s integrated operating system 7.2 through 7.5 allows local users to gain root access. The flaw is in base operating-system code associated with the Integrated Application Server, but the faulty operation has not been disclosed. The code remains reachable even when the server is neither configured nor active, and successful exploitation gives control of the host operating system.

CVSS severity7.4
High
EPSS probability0.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Local privilege escalation in IBM’s integrated operating system 7.2 through 7.5 allows local users to gain root access. The flaw is in base operating-system code associated with the Integrated Application Server, but the faulty operation has not been disclosed. The code remains reachable even when the server is neither configured nor active, and successful exploitation gives control of the host operating system.

The record

CVE
CVE-2023-40375
Published
Sep 28, 2023
Updated
Sep 23, 2024
Vendor
IBM
Product
IBM i
Classifications
CWE-269, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 28, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 23, 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=7.2
  2. Affected versionversion=7.2, 7.3, 7.4, 7.5
  3. Affected versionversion=7.3
  4. Affected versionversion=7.4
  5. Affected versionversion=7.5

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

IBM · IBM iversion=7.2; version=7.2, 7.3, 7.4, 7.5; version=7.3; version=7.4; version=7.5

Published CVSS scores

7.8NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.4IBMCVSS:3.0/AV:L/AC:H/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.

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)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-269Improper Privilege Management
T1068Exploitation for Privilege Escalation

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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