Is CVE-2023-43637 in the CISA KEV catalog?

No. CVE-2023-43637 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-43637?

CVE-2023-43637 has a CVSS v3 base score of 7.8 (HIGH).

What is the EPSS score for CVE-2023-43637?

CVE-2023-43637 has an EPSS score of 0.13% (3th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2023-43637

HIGH

7.8

CVSS v3

NVD

Description

Due to the implementation of "deriveVaultKey", prior to version 7.10, the generated vault key would always have the last 16 bytes predetermined to be "arfoobarfoobarfo". This issue happens because "deriveVaultKey" calls "retrieveCloudKey" (which will always return "foobarfoobarfoobarfoobarfoobarfo" as the key), and then merges the 32byte randomly generated key with this key (by takeing 16bytes from each, see "mergeKeys"). This makes the key a lot weaker. This issue does not persist in devices that were initialized on/after version 7.10, but devices that were initialized before that and updated to a newer version still have this issue. Roll an update that enforces the full 32bytes key usage.

CWE-321 CWE-798Hard-coded Credentials

How to fix

Remediation Available

eveNVD

Affected:< 7.10Fixed in:7.10CVE-2023-43637derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityHigh

Privileges RequiredLow

User InteractionNone

ScopeChanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

Exploit Intelligence

0.13%probability of exploitation in 30 days

3rdpercentile

Low risk: more likely to be exploited than 3% of all known CVEs.

References

Third-Party Advisory1

asrg.io

Related Vulnerabilities

Other CWE-321 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2025-30406	Critical	9.0	94%	KEV	Fix
CVE-2016-4437	Critical	9.8	93%	KEV	Fix
CVE-2023-32169	Critical	9.8	56%	-	-
CVE-2023-27584	Critical	9.8	34%	-	Fix
CVE-2020-10884	High	8.8	24%	-	-
CVE-2021-4228	Medium	5.8	9.9%	-	-

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.