CVE-2023-4259— Potential buffer overflow vulnerabilities in the Zephyr eS-WiFi driver
Quick assessment
Affected
zephyrproject-rtos Zephyr
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Zephyr是Zephyr Project开源的一个可扩展的实时操作系统 (RTOS)。 Zephyr 3.4.0及之前版本存在安全漏洞，该漏洞源于eS-WiFi 驱动程序中的/drivers/wifi/eswifi/eswifi_core.c 和/drivers/wifi/eswifi/eswifi_shell.c 存在缓冲区溢出。
Possible ATT&CK Techniques 1 AI
T1203 · Exploitation for Client Execution
Get alerts for future matching vulnerabilities
Log in to subscribe
I. Basic Information for CVE-2023-4259
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗
Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
Potential buffer overflow vulnerabilities in the Zephyr eS-WiFi driver
Source: CVE Program / CVE List V5
Vulnerability Description
Two potential buffer overflow vulnerabilities at the following locations in the Zephyr eS-WiFi driver source code.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未进行输入大小检查的缓冲区拷贝(传统缓冲区溢出)
Source: CVE Program / CVE List V5
Vulnerability Title
Zephyr 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Zephyr是Zephyr Project开源的一个可扩展的实时操作系统 (RTOS)。 Zephyr 3.4.0及之前版本存在安全漏洞，该漏洞源于eS-WiFi 驱动程序中的/drivers/wifi/eswifi/eswifi_core.c 和/drivers/wifi/eswifi/eswifi_shell.c 存在缓冲区溢出。
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 |
|---|---|---|---|---|
| zephyrproject-rtos | Zephyr | 1.14 ~ 3.4 | - |
|
II. Public POCs for CVE-2023-4259
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
Premium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2023-4259
请登录查看更多情报信息。
Vendor Advisories for CVE-2023-4259 (1)
Exploits & Public PoCs for CVE-2023-4259 (1)
Mailing List Discussions for CVE-2023-4259 (2)
IV. Related Vulnerabilities
Same product: Zephyr
-
CVE-2026-12999
Infineon Airoc Wi-Fi driver leaks TX buffers on send failure -
CVE-2026-12634
Out-of-bounds stack write in the settings NVS backend from o -
CVE-2026-12522
Stack buffer overflow in Zephyr hl7800 modem driver parsing -
CVE-2026-12633
Out-of-bounds write in IPv6 6LoWPAN Context Option handling -
CVE-2026-12632
Out-of-bounds read in Zephyr PTP message parsing from unvali
Same vendor: zephyrproject-rtos
-
CVE-2026-13351
net: Maliciously fragmented IPv6 packets can prevent receivi -
CVE-2026-5068
bt: l2cap le coc: remote oob write via seg counter stored in -
CVE-2026-5067
Out-of-bounds read/write in HTTP WebSocket upgrade via non-n -
CVE-2026-5066
net: sockets: tls: Potential out-of-bounds write/read in soc -
CVE-2026-5589
Out-of-bounds write caused by an integer underflow in the Bl
Same weakness: CWE-120
-
CVE-2026-68768
hashcat through 7.1.2 Heap Buffer Overflow in outfile_write( -
CVE-2026-17040
Vulnerabilities in IBM AIX and PowerVM VIOS -
CVE-2026-18280
Sony XAV-9500ES gpsd Buffer Overflow Arbitrary Code Executio -
CVE-2026-18279
Sony XAV-9500ES RTSP SETUP Buffer Overflow Remote Code Execu -
CVE-2026-20302
Cisco RoomOS Stack Overflow Vulnerability
V. Comments for CVE-2023-4259
No comments yet