Incorrect check of function return value in Caliptra Core Runtime Firmware (ActivateFirmwareCmd::activate_fw modules) allows bypass of Caliptra Core's verification of the MCU FW during a hitless update.
This issue affects Core Runtime Firmware: from 2.0.0 through 2.0.1, 2.1.0.
This issue affects Core Runtime Firmware: from 2.0.0 through 2.0.1, 2.1.0.
Advisories
No advisories yet.
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Wed, 24 Jun 2026 16:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Caliptra
Caliptra core Runtime Firmware |
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| Vendors & Products |
Caliptra
Caliptra core Runtime Firmware |
Wed, 24 Jun 2026 13:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
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Wed, 24 Jun 2026 00:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Incorrect check of function return value in Caliptra Core Runtime Firmware (ActivateFirmwareCmd::activate_fw modules) allows bypass of Caliptra Core's verification of the MCU FW during a hitless update. This issue affects Core Runtime Firmware: from 2.0.0 through 2.0.1, 2.1.0. | |
| Title | MCU Firmware Update Authentication Bypass on Caliptra Core | |
| Weaknesses | CWE-253 | |
| References |
| |
| Metrics |
cvssV4_0
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Projects
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Status: PUBLISHED
Assigner: Caliptra
Published:
Updated: 2026-06-24T13:04:40.166Z
Reserved: 2026-04-08T15:45:10.928Z
Link: CVE-2026-5818
Updated: 2026-06-24T13:04:36.471Z
No data.
No data.
OpenCVE Enrichment
Updated: 2026-06-24T16:05:22Z
Weaknesses