How severe is CVE-2025-36251?

CVE-2025-36251 has a CVSS 3.x base score of 9.6, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability low.

Is CVE-2025-36251 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-36251?

CVE-2025-36251 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-2025-36251?

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

Does CVE-2025-36251 have an EU (EUVD) identifier?

Yes. CVE-2025-36251 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-180541.

When was CVE-2025-36251 published?

CVE-2025-36251 was published on 2025-11-13 and last updated on 2026-06-17.

CVE-2025-36251

CVE-2025-36251 is a critical-severity vulnerability in Ibm Vios with a CVSS 3.x base score of 9.6. 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-114.

Key facts

Severity: Critical (CVSS 3.x base score 9.6)
EPSS exploit prediction: 1% (40th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-180541
Weakness: CWE-114
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 nimsh service SSL/TLS implementations could allow a remote attacker to execute arbitrary commands due to improper process controls. This addresses additional attack vectors for a vulnerability that was previously addressed in CVE-2024-56347.

Frequently asked questions

What is CVE-2025-36251?: IBM AIX 7.2, and 7.3 and IBM VIOS 3.1, and 4.1 nimsh service SSL/TLS implementations could allow a remote attacker to execute arbitrary commands due to improper process controls. This addresses additional attack vectors for a vulnerability that was previously addressed in CVE-2024-56347.
How severe is CVE-2025-36251?: CVE-2025-36251 has a CVSS 3.x base score of 9.6, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability low.
Is CVE-2025-36251 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-36251?: CVE-2025-36251 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-2025-36251?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2025-36251 have an EU (EUVD) identifier?: Yes. CVE-2025-36251 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-180541.
When was CVE-2025-36251 published?: CVE-2025-36251 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

CVE-2025-36250 — Critical (CVSS 10.0): 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…
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Other CWE-114 vulnerabilities

CVE-2025-36250 — Critical (CVSS 10.0): 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…
CVE-2024-56346 — Critical (CVSS 10.0): IBM AIX 7.2 and 7.3 nimesis NIM master service could allow a remote attacker to execute arbitrary commands due to…
CVE-2024-56347 — Critical (CVSS 9.6): IBM AIX 7.2 and 7.3 nimsh service SSL/TLS protection mechanisms could allow a remote attacker to execute arbitrary…
CVE-2025-1950 — Critical (CVSS 9.3): IBM Hardware Management Console - Power Systems V10.2.1030.0 and V10.3.1050.0 could allow a local user to execute…
CVE-2024-25021 — High (CVSS 8.4): IBM AIX 7.3, VIOS 4.1's Perl implementation could allow a non-privileged local user to exploit a vulnerability to…
CVE-2020-8107 — High (CVSS 8.2): A Process Control vulnerability in ProductAgentUI.exe as used in Bitdefender Antivirus Plus allows an attacker to…

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