How severe is CVE-2022-43849?

CVE-2022-43849 has a CVSS 3.x base score of 6.2, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2022-43849 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (8th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-43849?

CVE-2022-43849 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-2022-43849?

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

When was CVE-2022-43849 published?

CVE-2022-43849 was published on 2022-12-23 and last updated on 2026-06-17.

CVE-2022-43849

CVE-2022-43849 is a medium-severity vulnerability in Ibm Vios with a CVSS 3.x base score of 6.2. 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-20.

Key facts

Severity: Medium (CVSS 3.x base score 6.2)
EPSS exploit prediction: 0% (8th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Ibm Vios
Published: 2022-12-23
Last modified: 2026-06-17

Description

IBM AIX 7.1, 7.2, 7.3, and VIOS 3.1could allow a non-privileged local user to exploit a vulnerability in the AIX pfcdd kernel extension to cause a denial of service. IBM X-Force ID: 239170.

Frequently asked questions

What is CVE-2022-43849?: IBM AIX 7.1, 7.2, 7.3, and VIOS 3.1could allow a non-privileged local user to exploit a vulnerability in the AIX pfcdd kernel extension to cause a denial of service. IBM X-Force ID: 239170.
How severe is CVE-2022-43849?: CVE-2022-43849 has a CVSS 3.x base score of 6.2, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2022-43849 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (8th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-43849?: CVE-2022-43849 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-2022-43849?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2022-43849 published?: CVE-2022-43849 was published on 2022-12-23 and last updated on 2026-06-17.

References

Affected products (4)

cpe:2.3:a:ibm:vios:3.1:*:*:*:*:*:*:*
cpe:2.3:o:ibm:aix:7.1:*:*:*:*:*:*:*
cpe:2.3:o:ibm:aix:7.2:*:*:*:*:*:*:*
cpe:2.3:o:ibm:aix:7.3:*:*:*:*:*:*:*

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