How severe is CVE-2022-22351?

CVE-2022-22351 has a CVSS 3.x base score of 8.6, 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 none, and availability high.

Is CVE-2022-22351 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-22351?

CVE-2022-22351 primarily affects Ibm Vios. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2022-22351?

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.

When was CVE-2022-22351 published?

CVE-2022-22351 was published on 2022-03-07 and last updated on 2026-06-17.

CVE-2022-22351

CVE-2022-22351 is a high-severity vulnerability in Ibm Vios with a CVSS 3.x base score of 8.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 3.x base score 8.6)
CVSS v2: 7.8
EPSS exploit prediction: 1% (64th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Ibm Vios
Published: 2022-03-07
Last modified: 2026-06-17

Description

IBM AIX 7.1, 7.2, 7.3, and VIOS 3.1 could allow a non-privileged trusted host user to exploit a vulnerability in the nimsh daemon to cause a denial of service in the nimsh daemon on another trusted host. IBM X-Force ID: 220396

Frequently asked questions

What is CVE-2022-22351?: IBM AIX 7.1, 7.2, 7.3, and VIOS 3.1 could allow a non-privileged trusted host user to exploit a vulnerability in the nimsh daemon to cause a denial of service in the nimsh daemon on another trusted host. IBM X-Force ID: 220396
How severe is CVE-2022-22351?: CVE-2022-22351 has a CVSS 3.x base score of 8.6, 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 none, and availability high.
Is CVE-2022-22351 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-22351?: CVE-2022-22351 primarily affects Ibm Vios. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2022-22351?: 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.
When was CVE-2022-22351 published?: CVE-2022-22351 was published on 2022-03-07 and last updated on 2026-06-17.

References

Affected products (7)

cpe:2.3:a:ibm:vios:*:*:*:*:*:*:*:*
cpe:2.3:o:ibm:aix:*:*:*:*:*:*:*:*
cpe:2.3:o:ibm:aix:7.2.5.0:*:*:*:*:*:*:*
cpe:2.3:o:ibm:aix:7.2.5.1:*:*:*:*:*:*:*
cpe:2.3:o:ibm:aix:7.2.5.100:*:*:*:*:*:*:*
cpe:2.3:o:ibm:aix:7.3.0:sp1:*:*:*:*:*:*
cpe:2.3:o:ibm:aix:7.3.0.0:*:*:*:*:*:*:*

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