CVE-2026-6420

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.12% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 1.8% of scored records. A rank, not a probability.

NVD base score

6.3 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:L

NVD analysis status

Awaiting Analysis. NVD last modified this record on 2026-10-26.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-05-06 10:19Z5 MO AGO

Last updated

2026-08-26 16:35Z2 MO AGO

Reserved

2026-04-16

Assigning CNA

redhat

Record state

PUBLISHED

Severity

Medium (CVSS 6.3)

CNA CVSS vector

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:L

Weaknesses

• CWE-1241Use of Predictable Algorithm in Random Number GeneratorBase

Data version

5.2

Document digest

74aa5dff2e85d81c257d277b3497d8fe6979097c770fa7b10db50aacb31af306

• access.redhat.comRHSA-2026:28582https://access.redhat.com/errata/RHSA-2026:28582vendor-advisoryx_refsource_REDHAT
• access.redhat.comhttps://access.redhat.com/security/cve/CVE-2026-6420vdb-entryx_refsource_REDHAT
• bugzilla.redhat.comRHBZ#2458889https://bugzilla.redhat.com/show_bug.cgi?id=2458889issue-trackingx_refsource_REDHAT