CVE-2026-54467

Status: DeferredHigh (7)—

On the Trusted Firmware-M (TF-M) 2 through 2.3.0 platform before 00d1b3e, mailbox initialization on PSOC64 and RP2350 accepts a non-secure, unvalidated, supplied pointer.

CVSS

Version: 3.1
Vector: CVSS:3.1/AV:P/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Base score: 7

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 0.17%
Percentile among all scored CVEs: 6
Score date: 10/6/2026

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

🎯 ATT&CK techniques

How this vulnerability is exploited and what the attacker gains, in MITRE ATT&CK terms.

ExploitationT1091 Replication Through Removable Medialateral movement · initial access85 %
Primary impactT1068 Exploitation for Privilege Escalationprivilege escalation75 %
Secondary impactT1005 Data from Local Systemcollection70 %

AV:P (acceso físico) → T1091. Pointer no validado en TF-M permite elevar privilegios (S:C) y leer datos confidenciales (C:H) en firmware de confianza.

Inferred by our analysis agent from the official description, CVSS vector and CWE, and checked by a supervisor. May contain errors.

🛡️ ATT&CK mitigations that cover these techniques

Threat Intelligence Program Limit Hardware Installation Execution Prevention Behavior Prevention on Endpoint Disable or Remove Feature or Program Application Isolation and Sandboxing

Affected technologies (3)

⚠ AI-inferred from the description — NVD hasn't analyzed this CVE yet, these aren't verified CPEs.

ARM — Trusted Firmware-m^AI Infineon — Psoc64^AI Raspberrypi — Rp2350^AI

CWEs

CWE-283

References

Raw JSON (NVD)

Show

{
  "id": "CVE-2026-54467",
  "cveTags": [],
  "metrics": {
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        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-54467",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-08-26T14:10:18.325992Z"
        }
      }
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    "cvssMetricV31": [
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          "baseScore": 7,
          "attackVector": "PHYSICAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:P/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 6,
        "exploitabilityScore": 0.4
      }
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  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "repo": "https://www.trustedfirmware.org/projects/tf-m/",
          "vendor": "TrustedFirmware",
          "product": "Trusted Firmware-M",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "lessThan": "00d1b3e716dc636f7ad4398980ae55427dc1731d",
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  "published": "2026-08-26T05:18:11.053",
  "references": [
    {
      "url": "https://review.trustedfirmware.org/c/TF-M/trusted-firmware-m/+/53051/1/docs/security/security_advisories/missing_ns_pointer_validation_mailbox_init.rst#58",
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      "lang": "en",
      "value": "On the Trusted Firmware-M (TF-M) 2 through 2.3.0 platform before 00d1b3e, mailbox initialization on PSOC64 and RP2350 accepts a non-secure, unvalidated, supplied pointer."
    }
  ],
  "lastModified": "2026-09-09T16:04:24.933",
  "sourceIdentifier": "cve@mitre.org"
}