CVE-2026-13217— zephyrproject Zephyr 异常处理不当漏洞
一分钟漏洞结论
影响对象
zephyrproject zephyr
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。
zephyrproject Zephyr是zephyrproject组织开源的一款面向物联网设备的实时操作系统。 zephyrproject Zephyr 4.3.0至4.4.2之前版本存在异常处理不当漏洞，该漏洞源于OCPP 1.6客户端在处理CALLRESULT消息时未检查strtok_r返回值，导致空指针解引用，可能造成远程拒绝服务。
可能的 ATT&CK 技术 1 AI
T1499 · Endpoint Denial of Service影响版本矩阵 1
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| zephyrproject | zephyr | 4.3.0< 4.4.2 |
affected |
获取后续新漏洞提醒
登录后订阅
一、 漏洞 CVE-2026-13217 基础信息
漏洞信息
对漏洞内容有疑问？看看神龙的深度分析是否有帮助！
查看神龙十问 ↗
尽管我们使用了先进的大模型技术，但其输出仍可能包含不准确或过时的信息。神龙努力确保数据的准确性，但请您根据实际情况进行核实和判断。
Vulnerability Title
NULL-pointer dereference in Zephyr OCPP CALLRESULT parsing via unchecked strtok_r/atoi
来源: CVE Program / CVE List V5
Vulnerability Description
The OCPP 1.6 client in subsys/net/lib/ocpp/ocpp.c reconstructs a session handle and PDU id from the uid field of a CALLRESULT message. In ocpp_process_server_msg() the code calls atoi(strtok_r(uid, "-", &tmp)) without checking the strtok_r return value. When the server-supplied uid is empty or contains no - delimiter, strtok_r() returns NULL and atoi(NULL) dereferences a NULL pointer, which is undefined behaviour.
The uid originates from network data: parse_rpc_msg() in subsys/net/lib/ocpp/ocpp_j.c JSON-parses a frame received from the OCPP central system over TCP/WebSocket and copies the server-controlled string into the local buffer. A malicious or compromised central system, or a man-in-the-middle on a non-TLS ws:// connection, can return a malformed uid to reach the defect. No authentication beyond the existing server connection (or MITM position) is required, and the reconstructed pointer is membership-validated by ocpp_session_is_valid(), so the impact is limited to the NULL dereference rather than arbitrary pointer use.
On Zephyr targets that trap access to address 0 (MMU/MPU platforms or CONFIG_NULL_POINTER_EXCEPTION_DETECTION), the dereference faults inside the OCPP reader thread and invokes the fatal handler, producing a remote denial of service of the charge point; on bare targets where address 0 is readable the call returns 0 and is benign, so the impact is availability-only and platform-conditional.
The applied fix guards only the first atoi(); the second strtok_r(NULL, "-", &tmp) followed by pdu = atoi(buf) in the same function remains unguarded and the identical NULL dereference is still reachable from the same network input when the uid has a first token but no second --delimited token. A complete fix should validate the second token as well.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
来源: CVE Program / CVE List V5
Vulnerability Type
空指针解引用
来源: CVE Program / CVE List V5
Vulnerability Title
zephyrproject Zephyr 异常处理不当漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
zephyrproject Zephyr是zephyrproject组织开源的一款面向物联网设备的实时操作系统。 zephyrproject Zephyr 4.3.0至4.4.2之前版本存在异常处理不当漏洞，该漏洞源于OCPP 1.6客户端在处理CALLRESULT消息时未检查strtok_r返回值，导致空指针解引用，可能造成远程拒绝服务。
来源: 中国国家信息安全漏洞库 CNNVD
CVSS Information
N/A
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Type
N/A
来源: 中国国家信息安全漏洞库 CNNVD
受影响产品
| 厂商 | 产品 | 影响版本 | CPE | 订阅 |
|---|---|---|---|---|
| zephyrproject | zephyr | 4.3.0 ~ 4.4.2 | - |
|
二、漏洞 CVE-2026-13217 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
AI 生成 POC
高级
未找到公开 POC。
登录以生成 AI POC三、漏洞 CVE-2026-13217 的情报信息
请登录查看更多情报信息。
CVE-2026-13217 补丁与修复 (2)
CVE-2026-13217 厂商安全公告 (1)
同批安全公告 · zephyrproject · 2026-08-25 · 共 5 条
| CVE-2026-13214 | 9.8 CRITICAL | zephyrproject Zephyr 缓冲区错误漏洞 |
| CVE-2026-13215 | 6.8 MEDIUM | zephyrproject Zephyr 缓冲区错误漏洞 |
| CVE-2026-13216 | 6.1 MEDIUM | zephyrproject Zephyr 缓冲区错误漏洞 |
| CVE-2026-13478 | 5.5 MEDIUM | zephyrproject Zephyr 缓冲区错误漏洞 |