CVE-2026-54467

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

0.17% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 6.3% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

Deferred. NVD last modified this record on 2026-09-09.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

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

2026-08-26 04:03Z2 MO AGO

Last updated

2026-08-26 14:10Z2 MO AGO

Reserved

2026-06-15

Assigning CNA

mitre

Record state

PUBLISHED

Severity

High (CVSS 7.0)

CNA CVSS vector

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

Weaknesses

• CWE-283Unverified OwnershipBase

Data version

5.2

Document digest

a5d65b27533bfa101218dd6f535c7ff52bb357db0f9674d7db8817b7522c7e95

• www.trustedfirmware.orghttps://www.trustedfirmware.org/projects/tf-m/
• review.trustedfirmware.orghttps://review.trustedfirmware.org/c/TF-M/trusted-firmware-m/+/53051/1/docs/security/security_advisories/missing_ns_pointer_validation_mailbox_init.rst#58