CVE-2023-51394— Potential DoS for EFR32xxx parts in high traffic environments due to null buffer dereference / crash
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I. Basic Information for CVE-2023-51394
Vulnerability Information
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Vulnerability Title
Potential DoS for EFR32xxx parts in high traffic environments due to null buffer dereference / crash
Source: NVD (National Vulnerability Database)
Vulnerability Description
High traffic environments may result in NULL Pointer Dereference vulnerability in Silicon Labs's Ember ZNet SDK before v7.4.0, causing a system crash.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
空指针解引用
Source: NVD (National Vulnerability Database)
Vulnerability Title
Silicon Labs Ember ZNet 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Silicon Labs Ember ZNet是美国芯科科技（Silicon Labs）公司的一个协议栈软件。 Silicon Labs Ember ZNet SDK v7.4.0之前版本存在代码问题漏洞，该漏洞源于存在NULL指针取消引用，可能导致系统崩溃。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| silabs.com | Ember ZNet SDK | 0 ~ 7.4.0 | - |
II. Public POCs for CVE-2023-51394
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · silabs.com · 2024-02-23 · 3 CVEs total
| CVE-2023-51392 | 6.2 MEDIUM | Silicon Labs EFR32xxx parts with classic key storage do not use hardware accelerated AES-C |
| CVE-2023-51393 | 5.3 MEDIUM | Potential DoS due to BusFault and Assert in Ember ZNet legacy packet buffer |
IV. Related Vulnerabilities
Same product: Ember ZNet SDK
- CVE-2024-10106
Ember ZNet buffer overflow in 'packet handoff' plugin - CVE-2024-3043
Zigbee co-ordinator realignment packet may lead to denial of - CVE-2023-51393
Potential DoS due to BusFault and Assert in Ember ZNet legac - CVE-2023-51392
Silicon Labs EFR32xxx parts with classic key storage do not - CVE-2023-41096
Keys Stored in Plaintext on Secure Vault High for Silabs Emb
Same vendor: silabs.com
- CVE-2025-11571
Command Execution vulnerability in Simplicity Installer - CVE-2025-14055
Integer underflow in Secure NCP host - CVE-2025-14547
ECJ-PAKE Integer Underflow Vulnerability in Silicon Labs PSA - CVE-2026-0619
Integer Wraparound DoS in Silicon Labs Matter Implementation - CVE-2025-11004
Reflected XSS vulnerability in Simplicity Device Manager too
Same weakness: CWE-476
- CVE-2026-8252
Open5GS SMF smf_nsmf_handle_create_data_in_hsmf null pointer - CVE-2026-7259
Null pointer dereference in php_mb_check_encoding() via mb_e - CVE-2026-7262
NULL pointer dereference in SOAP apache:Map decoder with mis - CVE-2026-42183
Argo Workflows: SSO RBAC Delegation Nil Pointer Dereference - CVE-2026-6666
PgBouncer crash in kill_pool_logins_server_error
V. Comments for CVE-2023-51394
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