EVE Doesn't Measure Config Partition From 2 Fronts
Date: 2026-02
Affected: go/github.com/lf-edge/eve
Attack vector: auth-bypass
Category: vulnerability-disclosure
Severity: High
CVE: CVE-2023-43630
CWE: CWE-328
CWE-522
CVSS: 5.2 (CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N)

### Impact PCR14 is not included in the list of PCRs that seal/unseal the vault key. Additionally, the vault key uses SHA1 PCRs instead of SHA256. Thus an attacker with physical access can take out the disk, use a different computer to modify the files in the /config partition, and re-insert the disk and boot without the change being detected by measured boot and remote attestation. ### Patches Fixed in EVE version 9.4.3-lts ### Workarounds None (apart from preventing physical access to the device) ### Resources https://help.zededa.com/hc/en-us/articles/43295940828827-TPM-PCR-Index-Security-Implications https://github.com/lf-edge/eve/commit/d9383a7ee4e1c39f5c8c6d4a63cb2ebd00695e8a


Mitigations:

Architectural layers (MAESTRO):