CVE-2026-10665— Zephyr Project Zephyr 缓冲区错误漏洞
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组织开源的一款实时操作系统内核。 Zephyr Project Zephyr 4.4.0版本存在缓冲区错误漏洞，该漏洞源于WireGuard子系统中wg_crypto.c文件的wg_process_data_message()函数对inbound transport-data payload进行线性化处理时，未正确限制目标缓冲区容量和复制长度，导致data_len超过CONFIG_WIREGUARD_BUF_LEN时发生越界写入，造成内存
可能的 ATT&CK 技术 1 AI
T1190 · Exploit Public-Facing Application影响版本矩阵 1
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| zephyrproject | zephyr | 4.4.0< 4.5.0 |
affected |
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一、 漏洞 CVE-2026-10665 基础信息
漏洞信息
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Vulnerability Title
Heap buffer overflow on WireGuard receive path via unbounded incoming packet length
来源: CVE Program / CVE List V5
Vulnerability Description
In Zephyr's WireGuard subsystem (subsys/net/lib/wireguard), wg_process_data_message() in wg_crypto.c linearizes an inbound transport-data payload into a fixed pool buffer of CONFIG_WIREGUARD_BUF_LEN bytes before decryption. The call net_buf_linearize(buf->data, data_len, pkt->buffer, ..., data_len) passed the attacker-derived data_len as both the destination capacity and the copy length, defeating the function's internal len = min(len, dst_len) bound. data_len is derived from the received UDP datagram length and is only lower-bounded by wg_ctrl_recv() (no upper bound). When data_len exceeds CONFIG_WIREGUARD_BUF_LEN — e.g. when the buffer length is lowered below the link MTU, on links with MTU above the buffer size, or via reassembled IPv4/IPv6 fragments that exceed it — the underlying memcpy writes past the end of the pool buffer, an out-of-bounds write (CWE-787). The overflow occurs before the Poly1305 authentication check, so it requires only a valid receiver session index rather than a valid authenticator, and is reachable by a malicious or compromised peer (or an on-path attacker driving an established session) over the network, yielding remote memory corruption and at minimum a reliable denial of service. The defect was present in the WireGuard implementation shipped in Zephyr 4.4.0. The fix adds an explicit data_len > CONFIG_WIREGUARD_BUF_LEN rejection and corrects the linearize call to pass net_buf_max_len(buf) as the destination capacity.
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:H/A:H
来源: CVE Program / CVE List V5
Vulnerability Type
跨界内存写
来源: CVE Program / CVE List V5
Vulnerability Title
Zephyr Project Zephyr 缓冲区错误漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
zephyrproject zephyr是zephyrproject组织开源的一款实时操作系统内核。 Zephyr Project Zephyr 4.4.0版本存在缓冲区错误漏洞，该漏洞源于WireGuard子系统中wg_crypto.c文件的wg_process_data_message()函数对inbound transport-data payload进行线性化处理时，未正确限制目标缓冲区容量和复制长度，导致data_len超过CONFIG_WIREGUARD_BUF_LEN时发生越界写入，造成内存
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 | 4.4.0 ~ 4.5.0 | - |
|
二、漏洞 CVE-2026-10665 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2026-10665 补丁与修复 (1)
CVE-2026-10665 厂商安全公告 (1)
同批安全公告 · zephyrproject · 2026-07-12 · 共 6 条
| CVE-2026-10666 | 8.1 HIGH | Zephyr Project Zephyr 缓冲区错误漏洞 |
| CVE-2026-10667 | 7.8 HIGH | Zephyr Project Zephyr 资源管理错误漏洞 |
| CVE-2026-10663 | 6.1 MEDIUM | Zephyr Project Zephyr 资源管理错误漏洞 |
| CVE-2026-10664 | 5.0 MEDIUM | Zephyr Project Zephyr 缓冲区错误漏洞 |
| CVE-2026-10668 | 2.4 LOW | Zephyr Project Zephyr 资源管理错误漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2026-10665
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