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CVE-2023-4020

CRITICAL
Published 2023-12-15T20:37:20.123Z
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Expert Analysis

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CVSS Score

V3.1
9.0
/10
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
Base Score Metrics
Exploitability: N/A Impact: N/A

EPSS Score

v2025.03.14
0.002
probability
of exploitation in the wild

There is a 0.2% chance that this vulnerability will be exploited in the wild within the next 30 days.

Updated: 2025-06-25
Exploit Probability
Percentile: 0.446
Higher than 44.6% of all CVEs

Attack Vector Metrics

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED

Impact Metrics

Confidentiality
HIGH
Integrity
HIGH
Availability
NONE

Description

An unvalidated input in a library function responsible for communicating between secure and non-secure memory in Silicon Labs TrustZone implementation allows reading/writing of memory in the secure region of memory from the non-secure region of memory.

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

Affected Products

silabs.com

GSDK

Affected Versions:

1.0

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

⚠ Unreviewed CRITICAL

GHSA-2cr6-32m2-cxhc

Advisory Details

An unvalidated input in a library function responsible for communicating between secure and non-secure memory in Silicon Labs TrustZone implementation allows reading/writing of memory in the secure region of memory from the non-secure region of memory.

CVSS Scoring

CVSS Score

9.0

CVSS Vector

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

References

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2023-4020
WEB https://community.silabs.com/069Vm0000004b95IAA
WEB https://github.com/SiliconLabs/gecko_sdk/releases

Advisory provided by GitHub Security Advisory Database. Published: December 15, 2023, Modified: December 15, 2023

References

https://github.com/SiliconLabs/gecko_sdk/releases
https://community.silabs.com/069Vm0000004b95IAA
Published: 2023-12-15T20:37:20.123Z
Last Modified: 2024-09-26T14:11:59.084Z
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