NVD / CVE Program· CNA ASRG

CVE-2023-43630: Config Partition Not Measured From 2 Fronts

HighCVSS 8.8 · v3.1—No exploit Fix available

Noroxi assessment

Priority: Monitor (action score 35/100)

The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
Probability of exploitation in the next 30 days: 0.11% (FIRST EPSS).
Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
Fixed version: LF-Edge, Zededa EVE OS 9.5.0.

Low priority for now. Upgrade to LF-Edge, Zededa EVE OS 9.5.0 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

PCR14 is not in the list of PCRs that seal/unseal the “vault” key, but due to the change that was implemented in commit “7638364bc0acf8b5c481b5ce5fea11ad44ad7fd4”, fixing this issue alone would not solve the problem of the config partition not being measured correctly. Also, the “vault” key is sealed/unsealed with SHA1 PCRs instead of SHA256. This issue was somewhat mitigated due to all of the PCR extend functions updating both the values of SHA256 and SHA1 for a given PCR ID. However, due to the change that was implemented in commit “7638364bc0acf8b5c481b5ce5fea11ad44ad7fd4”, this is no longer the case for PCR14, as the code in “measurefs.go” explicitly updates only the SHA256 instance of PCR14, which means that even if PCR14 were to be added to the list of PCRs sealing/unsealing the “vault” key, changes to the config partition would still not be measured. An attacker could modify the config partition without triggering the measured boot, this could result in the attacker gaining full control over the device with full access to the contents of the encrypted “vault”

Published: Sep 20, 2023
Updated: Jun 17, 2026
EPSS: 0.1% · 1th percentile
CWE: CWE-328

Report tools

JSON

Action score

Monitor

Low priority for now.

CVSS: 35 / 40 · 8.8 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 0 / 30 · 0.1%

CISA SSVC decision

Exploitation: none
Automatable: no
Technical impact: total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD: 8.8
CNA · ASRG: 8.8; agree

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

Not in KEV: no record of exploitation in the wild
No public exploit code on record
A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Is your version affected? Check it

Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

We use this product, ask for help

Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

Vendor	Product	CPE
linuxfoundation	edge virtualization engine	cpe:2.3:o:linuxfoundation:edge_virtualization_engine

Versions reported by the vendor

Affected version ranges reported by the assigning authority (ASRG). Independent of NVD's CPE analysis and usually ahead of it.

LF-Edge, Zededa EVE OS
- 9.0.0 and later · before 9.5.0affected · release

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

linuxfoundation edge virtualization engine9.0.0 and later · before 9.5.0

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

Ecosystem	Package	Affected range	Fix
Go	github.com/lf-edge/eve	before 0.0.0-20230126065759-d9383a7ee4e1	0.0.0-20230126065759-d9383a7ee4e1
openSUSE:Leap 15.6	govulncheck-vulndb	before 0.0.20260205T172317-150000.1.146.1	0.0.20260205T172317-150000.1.146.1

Same product

linuxfoundation: all records

Other highest-scoring records for the same primary product.

CVE-2023-43632Freely Allocate Buffer on The Stack With Data From Socket
39Monitor
CVE-2023-43631SSH as Root Unlockable Without Triggering Measured Boot
35Monitor
CVE-2023-43636Rootfs Not Protected
35Monitor

Published before and after this one in the same product

Later →CVE-2023-43635Sep 20, 2023 · Vault Key Sealed With SHA1 PCRs
35Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / package	Fixed version	Source
LF-Edge, Zededa EVE OS	9.5.0	Vendor (CNA)
Go:github.com/lf-edge/eve	0.0.0-20230126065759-d9383a7ee4e1	Package registry (OSV)
opensuse:govulncheck-vulndb	0.0.20260205T172317-150000.1.146.1 · openSUSE:Leap 15.6	Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.