How severe is CVE-2025-36236?

CVE-2025-36236 has a CVSS 3.x base score of 8.2, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability low.

Is CVE-2025-36236 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-36236?

CVE-2025-36236 primarily affects Ibm Vios. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2025-36236?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-36236 have an EU (EUVD) identifier?

Yes. CVE-2025-36236 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-180538.

When was CVE-2025-36236 published?

CVE-2025-36236 was published on 2025-11-13 and last updated on 2026-06-17.

CVE-2025-36236

CVE-2025-36236 is a high-severity vulnerability in Ibm Vios with a CVSS 3.x base score of 8.2. 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-22.

Key facts

Severity: High (CVSS 3.x base score 8.2)
EPSS exploit prediction: 0% (35th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-180538
Weakness: CWE-22
Affected product: Ibm Vios
Published: 2025-11-13
Last modified: 2026-06-17

Description

IBM AIX 7.2, and 7.3 and IBM VIOS 3.1, and 4.1 NIM server (formerly known as NIM master) service (nimesis) could allow a remote attacker to traverse directories on the system. An attacker could send a specially crafted URL request to write arbitrary files on the system.

Frequently asked questions

What is CVE-2025-36236?: IBM AIX 7.2, and 7.3 and IBM VIOS 3.1, and 4.1 NIM server (formerly known as NIM master) service (nimesis) could allow a remote attacker to traverse directories on the system. An attacker could send a specially crafted URL request to write arbitrary files on the system.
How severe is CVE-2025-36236?: CVE-2025-36236 has a CVSS 3.x base score of 8.2, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability low.
Is CVE-2025-36236 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-36236?: CVE-2025-36236 primarily affects Ibm Vios. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2025-36236?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-36236 have an EU (EUVD) identifier?: Yes. CVE-2025-36236 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-180538.
When was CVE-2025-36236 published?: CVE-2025-36236 was published on 2025-11-13 and last updated on 2026-06-17.

References

https://www.ibm.com/support/pages/node/7251173

Affected products (4)

cpe:2.3:a:ibm:vios:3.1.0:*:*:*:*:*:*:*
cpe:2.3:a:ibm:vios:4.1.0:*:*:*:*:*:*:*
cpe:2.3:o:ibm:aix:7.2:*:*:*:*:*:*:*
cpe:2.3:o:ibm:aix:7.3:*:*:*:*:*:*:*

More vulnerabilities in Ibm Vios

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