CVE-2026-43003

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

0.98% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 59.9% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

Modified. NVD last modified this record on 2026-09-02.

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

2026-05-01 00:00Z4 MO AGO

Last updated

2026-09-02 12:04Z2 DAYS AGO

Reserved

2026-05-01

Assigning CNA

mitre

Record state

PUBLISHED

Severity

High (CVSS 8.0)

CNA CVSS vector

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

Weaknesses

• CWE-829Inclusion of Functionality from Untrusted Control SphereBase

Data version

5.2

Document digest

e59f25e4bd9f374fa0bec05fcd87ed2879d7d1c24abacce7498cd2bdfddd4901

• bugs.launchpad.nethttps://bugs.launchpad.net/ironic-python-agent/+bug/2148310
• github.comhttps://github.com/openstack/ironic-python-agent/blob/236b33abffe6688afc39c21e351cc3889b3db2dd/ironic_python_agent/efi_utils.py#L134-L139
• www.openwall.comhttp://www.openwall.com/lists/oss-security/2026/06/16/11
• access.redhat.comhttps://access.redhat.com/security/cve/CVE-2026-43003vdb-entryx_refsource_REDHAT
• bugzilla.redhat.comRHBZ#2464306https://bugzilla.redhat.com/show_bug.cgi?id=2464306issue-trackingx_refsource_REDHAT
• security.access.redhat.comhttps://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-43003.jsonx_sadp-csaf-vex
• access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:60454vendor-advisoryx_refsource_REDHAT
• access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:60446vendor-advisoryx_refsource_REDHAT
• access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:57801vendor-advisoryx_refsource_REDHAT
• access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:51038vendor-advisoryx_refsource_REDHAT