CVE-2026-7870Network attack vector

Administrator code execution via unqualified library call

Published Jun 11, 2026 · Updated Jun 11, 2026

Privilege escalation in IBM operating system releases 7.3 through 7.6 allows remote authenticated users to run user-controlled code as administrator. The affected 5770-SS1 feature makes an unqualified library call that can resolve user-controlled code instead of the intended object. Low-privileged network access is sufficient, but IBM has not identified the calling program, object, or library-list conditions.

CVSS severity8.8
High
EPSS probability0.34%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Privilege escalation in IBM operating system releases 7.3 through 7.6 allows remote authenticated users to run user-controlled code as administrator. The affected 5770-SS1 feature makes an unqualified library call that can resolve user-controlled code instead of the intended object. Low-privileged network access is sufficient, but IBM has not identified the calling program, object, or library-list conditions.

The record

CVE
CVE-2026-7870
Published
Jun 11, 2026
Updated
Jun 11, 2026
Vendor
OpenBMC Project
Product
IBM i
Classifications
CWE-427, T1574.008
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 11, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 11, 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=7.3
  2. Affected versionversion=7.4
  3. Affected versionversion=7.5
  4. Affected versionversion=7.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

OpenBMC Project · IBM iversion=7.3; version=7.4; version=7.5; version=7.6

Published CVSS scores

8.8IBM CorporationCVSS:3.1/AV:N/AC:L/PR:L/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-427Uncontrolled Search Path Element
T1574.008Path Interception by Search Order Hijacking

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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