CVE-2026-15554

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

0.56% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 46.8% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

Awaiting Analysis. NVD last modified this record on 2026-10-20.

Red Hat severity

Important. 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

2026-08-11 08:49Z2 MO AGO

Last updated

2026-10-20 14:21Z8 DAYS AGO

Reserved

2026-07-13

Assigning CNA

redhat

Record state

PUBLISHED

Severity

High (CVSS 7.4)

CNA CVSS vector

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

Weaknesses

• CWE-295Improper Certificate ValidationBase

Data version

5.2

Document digest

7c449a8a4b73089ccdc8f1c45acd37c5d3cb3f3cf7d0061eaedd646286e218aa

• access.redhat.comRHSA-2026:53644https://access.redhat.com/errata/RHSA-2026:53644vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2026:53645https://access.redhat.com/errata/RHSA-2026:53645vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2026:53646https://access.redhat.com/errata/RHSA-2026:53646vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2026:53806https://access.redhat.com/errata/RHSA-2026:53806vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2026:70228https://access.redhat.com/errata/RHSA-2026:70228vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2026:70229https://access.redhat.com/errata/RHSA-2026:70229vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2026:70230https://access.redhat.com/errata/RHSA-2026:70230vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2026:70277https://access.redhat.com/errata/RHSA-2026:70277vendor-advisoryx_refsource_REDHAT
• access.redhat.comhttps://access.redhat.com/security/cve/CVE-2026-15554vdb-entryx_refsource_REDHAT
• bugzilla.redhat.comRHBZ#2480601https://bugzilla.redhat.com/show_bug.cgi?id=2480601issue-trackingx_refsource_REDHAT