CVE-2025-26503

Memory corruption via crafted system call argument

Published Sep 18, 2025 · Updated Feb 26, 2026

Memory corruption in Wind River Systems VxWorks 7 before 25.03 allows local users with high privileges to corrupt system memory. A system call accepts a crafted argument and corrupts memory, but Wind River has not identified the call, argument field, or invalid buffer operation. Exploitation requires local access and high privileges, and the published record does not specify whether corruption produces code execution, data exposure, or a service interruption.

CVSS severity6.7
Medium
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

Memory corruption in Wind River Systems VxWorks 7 before 25.03 allows local users with high privileges to corrupt system memory. A system call accepts a crafted argument and corrupts memory, but Wind River has not identified the call, argument field, or invalid buffer operation. Exploitation requires local access and high privileges, and the published record does not specify whether corruption produces code execution, data exposure, or a service interruption.

The record

CVE
CVE-2025-26503
Published
Sep 18, 2025
Updated
Feb 26, 2026
Vendor
Wind River Systems
Product
VxWorks
Classifications
CWE-119, CAPEC-123
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Sep 18, 2025CVE publishedPublication date reported by the CVE source.
  2. Feb 26, 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=7.0.0 <25.03

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Wind River Systems · VxWorksversion=7.0.0 <25.03

Published CVSS scores

6.7Wind River SystemsCVSS:3.1/AV:L/AC:L/PR:H/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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
CAPEC-123Buffer Manipulation

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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