CVE-2026-7328
Unverified AXI Address in Subsystem Mode Commands Enables Denial of Service
- State
- Published
- Severity
- 6.8 Medium
- Published
- Jul 22, 2026
- Updated
- Jul 22, 2026
- Reserved
- Apr 28, 2026
Description
Missing authorization in Caliptra Core Runtime Firmware (INVOKE_DPE_MLDSA87, CM_AES_GCM_DECRYPT_DMA, EXTERNAL_MAILBOX_CMD commands) in subsystem mode allows a privileged local attacker to cause a denial of service via mailbox commands containing unverified AXI addresses. The security impact beyond availability is integration-specific.
This issue affects Core Runtime Firmware: 2.1.0.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.8 Medium | CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:L/SA:N | Caliptra |
Weaknesses
- CWE-862 Missing Authorization
Affected Products
| Product | Versions |
|---|---|
Core Runtime FirmwareCaliptra |
|
References
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