HIGH

CVE-2026-19446

CVSS v3

7.5

HIGH

EPSS Score

1.0 %

exploit probability, as of 2026-10-19

CISA KEV

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Neither OSV.dev nor the vendor advisories we read list affected versions for CVE-2026-19446 yet.

Full record on NVD

Description

IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 allows a remote unauthenticated attacker can send a crafted UDP packet to a reachable RPC service, resulting in complete system unavailability and requiring an LPAR restart.

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published: 2026-08-20
Last Modified: 2026-08-21

Frequently asked questions

What is CVE-2026-19446?

Is CVE-2026-19446 actively exploited?

Active exploitation of CVE-2026-19446 has not been confirmed. Its EPSS score was 1.0% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-19446?

CVE-2026-19446 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

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