How severe is CVE-2025-26503?

CVE-2025-26503 has a CVSS 3.x base score of 6.7, rated medium severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-26503 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-26503?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-26503 have an EU (EUVD) identifier?

Yes. CVE-2025-26503 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-30202.

When was CVE-2025-26503 published?

CVE-2025-26503 was published on 2025-09-18 and last updated on 2026-06-17.

CVE-2025-26503

CVE-2025-26503 is a medium-severity vulnerability with a CVSS 3.x base score of 6.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-119.

Key facts

Severity: Medium (CVSS 3.x base score 6.7)
EPSS exploit prediction: 0% (4th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-30202
Weakness: CWE-119
Published: 2025-09-18
Last modified: 2026-06-17

Description

A crafted system call argument can cause memory corruption.

Frequently asked questions

What is CVE-2025-26503?: A crafted system call argument can cause memory corruption.
How severe is CVE-2025-26503?: CVE-2025-26503 has a CVSS 3.x base score of 6.7, rated medium severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-26503 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-26503?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-26503 have an EU (EUVD) identifier?: Yes. CVE-2025-26503 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-30202.
When was CVE-2025-26503 published?: CVE-2025-26503 was published on 2025-09-18 and last updated on 2026-06-17.

References

https://support2.windriver.com/index.php?page=cve&on=view&id=CVE-2025-26503

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