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CVE Vulnerability Details :
CVE-2026-7328
PUBLISHED
More InfoOfficial Page
Assigner-Caliptra
Assigner Org ID-b01ddd03-5ef6-483b-b2c5-acba77f1a554
View Known Exploited Vulnerability (KEV) details
Published At-22 Jul, 2026 | 16:17
Updated At-22 Jul, 2026 | 18:49
Rejected At-
▼CVE Numbering Authority (CNA)
Unverified AXI Address in Subsystem Mode Commands Enables Denial of Service

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.

Affected Products
Vendor
Caliptra
Product
Core Runtime Firmware
Collection URL
https://github.com/chipsalliance/caliptra-sw
Package Name
Core Runtime Firmware
Modules
  • INVOKE_DPE_MLDSA87
  • CM_AES_GCM_DECRYPT_DMA
  • EXTERNAL_MAILBOX_CMD
Default Status
unaffected
Versions
Affected
  • 2.1.0 (semver)
Unaffected
  • 2.1.1 (semver)
Problem Types
TypeCWE IDDescription
CWECWE-862CWE-862 Missing Authorization
Type: CWE
CWE ID: CWE-862
Description: CWE-862 Missing Authorization
Metrics
VersionBase scoreBase severityVector
4.06.8MEDIUM
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
Version: 4.0
Base score: 6.8
Base severity: MEDIUM
Vector:
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
Metrics Other Info
Impacts
CAPEC IDDescription
CAPEC-122CAPEC-122 Privilege Abuse
CAPEC ID: CAPEC-122
Description: CAPEC-122 Privilege Abuse
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://github.com/chipsalliance/caliptra-sw/security/advisories/GHSA-c5v4-q445-wv84
N/A
Hyperlink: https://github.com/chipsalliance/caliptra-sw/security/advisories/GHSA-c5v4-q445-wv84
Resource: N/A
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Details not found