CVE-2026-1681— net: Stack Overflow with Ping (to own IP Address) via Shell
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开源的一个可扩展的实时操作系统 (RTOS)。 Zephyr存在安全漏洞，该漏洞源于通过net ping shell命令向设备自身的IPv4地址发出ICMP ping时，网络堆栈递归地重新进入同一系统工作队列堆栈上的输入路径，导致嵌套输入路径帧超出工作队列堆栈并触发堆栈溢出。
Possible ATT&CK Techniques 1 AI
T1499 · Endpoint Denial of ServiceAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| zephyrproject-rtos | Zephyr | *≤ 4.3 |
affected |
Get alerts for future matching vulnerabilities
Log in to subscribe
I. Basic Information for CVE-2026-1681
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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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
net: Stack Overflow with Ping (to own IP Address) via Shell
Source: CVE Program / CVE List V5
Vulnerability Description
Issuing an ICMP ping via the `net ping` shell command to a device's own IPv4 address causes the network stack to recursively re-enter the input path on the same system work-queue stack. Because the destination is recognized as a local address, both the echo request and the resulting echo reply are processed inline before the current frame returns. The nested input-path frames exceed the work-queue stack and trigger a stack overflow.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未经控制的递归
Source: CVE Program / CVE List V5
Vulnerability Title
Zephyr 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Zephyr是Zephyr开源的一个可扩展的实时操作系统 (RTOS)。 Zephyr存在安全漏洞，该漏洞源于通过net ping shell命令向设备自身的IPv4地址发出ICMP ping时，网络堆栈递归地重新进入同一系统工作队列堆栈上的输入路径，导致嵌套输入路径帧超出工作队列堆栈并触发堆栈溢出。
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 | * ~ 4.3 | - |
|
II. Public POCs for CVE-2026-1681
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
Premium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2026-1681
请登录查看更多情报信息。
Vendor Advisories for CVE-2026-1681 (1)
IV. Related Vulnerabilities
Same product: Zephyr
-
CVE-2026-17053
SMBus callback-removal syscalls accept an unvalidated user p -
CVE-2026-18747
Integer underflow of net_buf length in the MCUmgr serial (SM -
CVE-2026-18746
NULL pointer dereference in Zephyr LwM2M client when the CoA -
CVE-2026-18417
Wild pointer dereference in Zephyr BSD sockets when a TCP li -
CVE-2026-18416
Out-of-bounds read in CoAP well-known-core Uri-Query href ma
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-674
-
CVE-2026-66858
Apache Thrift, Apache Thrift, Apache Thrift, Apache Thrift, -
CVE-2026-83663
Apache Thrift: TFramedTransport and THeaderTransport re-ente -
CVE-2026-96289
Apache Thrift: php `--gen php:inlined` struct readers (and ` -
CVE-2026-96288
Apache Thrift: Erlang generated struct reads have no recursi -
CVE-2026-94650
Apache Thrift: c_glib generated struct readers have no recur
V. Comments for CVE-2026-1681
No comments yet