What is CVE-2025-26503?

CVE-2025-26503 is a medium-severity vulnerability in Wind River Systems Inc Vxworks 7, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 6.7/10. Published 2025-09-18.

How severe is CVE-2025-26503?

Medium severity. CVSS v3 base score is 6.7 out of 10.

Is CVE-2025-26503 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Wind River Systems Inc Vxworks 7

CVE-2025-26503

A crafted system call argument can cause memory corruption.

Vulnerability class: Buffer Overflow

EPSS: 0.001 (3.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

Affected products

Wind River Systems Inc Vxworks 7 — versions 7.0.0

Weakness classification (CWE)

CWE-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

0bf9931a-6ebf-4f48-bd14-39ee5e1d61f8

Frequently asked questions

What is CVE-2025-26503?: CVE-2025-26503 is a medium-severity vulnerability in Wind River Systems Inc Vxworks 7, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 6.7/10. Published 2025-09-18.
How severe is CVE-2025-26503?: Medium severity. CVSS v3 base score is 6.7 out of 10.
Is CVE-2025-26503 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.