CVE-2025-40763

Superuser code execution via unvalidated library path

Published Nov 11, 2025 · Updated Nov 11, 2025

Uncontrolled library search in Siemens Altair Grid Engine before 2026.0.0 allows local users to execute code with superuser privileges. The setuid-root sgepasswd utility accepts a user-controlled library-search environment variable and loads a substitute shared library from the selected path. Exploitation requires a low-privileged local account, control of a searched library location, and execution of the setuid-root utility.

CVSS severity8.5
High
EPSS probability0.14%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Uncontrolled library search in Siemens Altair Grid Engine before 2026.0.0 allows local users to execute code with superuser privileges. The setuid-root sgepasswd utility accepts a user-controlled library-search environment variable and loads a substitute shared library from the selected path. Exploitation requires a low-privileged local account, control of a searched library location, and execution of the setuid-root utility.

The record

CVE
CVE-2025-40763
Published
Nov 11, 2025
Updated
Nov 11, 2025
Vendor
Siemens
Product
Altair Grid Engine
Classifications
CWE-427, T1574.006
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 11, 2025CVE publishedPublication date reported by the CVE source.
  2. Nov 11, 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=0 <V2026.0.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Siemens · Altair Grid Engineversion=0 <V2026.0.0

Published CVSS scores

7.8Siemens ProductCERTCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.5Siemens ProductCERTCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA: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)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-427Uncontrolled Search Path Element
T1574.006Hijack Execution Flow: Dynamic Linker 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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