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CVE-2026-10660— 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 3.6.0版本至4.5.0之前版本存在缓冲区错误漏洞，该漏洞源于在subsys/bluetooth/audio/bap_broadcast_assistant.c中，蓝牙BAP广播助手GATT客户端将远程广播接收状态数据重组到一个文件静态的net_buf_simple（att_buf，512字节）缓冲区中，该缓冲区由所有连接实例共享，而BUSY标志、长读取句柄和

CVSS 6.4 · Medium EPSS 0.25% · P14

影响版本矩阵 1

厂商产品 版本范围状态
zephyrproject zephyr 3.6.0< 4.5.0 affected
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一、 漏洞 CVE-2026-10660 基础信息

漏洞信息
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Vulnerability Title
Shared reassembly buffer in Bluetooth BAP Broadcast Assistant enables cross-connection memory corruption
来源: CVE Program / CVE List V5
Vulnerability Description
The Bluetooth BAP Broadcast Assistant GATT client in subsys/bluetooth/audio/bap_broadcast_assistant.c reassembled remote Broadcast Receive State data into a single file-static net_buf_simple (att_buf, BT_ATT_MAX_ATTRIBUTE_LEN = 512 bytes) shared by all connection instances, while the BUSY flag, long-read handle, and reset/offset state were per-connection. When the device acts as a Broadcast Assistant connected to multiple Scan Delegator peripherals, notification and long-read callbacks from different connections interleave on the shared buffer: the append in notify_handler (net_buf_simple_add_mem at the not-busy branch) performs no tailroom check, so receive-state notifications from two or more delegators accumulate on the same 512-byte buffer and, with a sufficiently large configured ATT MTU (BT_L2CAP_TX_MTU up to 2000) and two-to-three concurrent connections, write past the buffer into adjacent .bss (net_buf_simple_add only asserts in debug builds). Even below the overflow threshold, one connection's net_buf_simple_reset zeroes the shared length while another connection's reassembly and GATT read offset are in flight, mixing one peer's data into another's parse. A malicious or compromised Scan Delegator (or two colluding peers) over BLE can trigger this, causing out-of-bounds writes (memory corruption / denial of service) and cross-connection data corruption. The fix moves the buffer into the per-connection instance struct so each connection reassembles into its own buffer. Affects Zephyr releases shipping the Broadcast Assistant with the shared buffer, including v4.4.0 and earlier.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/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 3.6.0版本至4.5.0之前版本存在缓冲区错误漏洞，该漏洞源于在subsys/bluetooth/audio/bap_broadcast_assistant.c中，蓝牙BAP广播助手GATT客户端将远程广播接收状态数据重组到一个文件静态的net_buf_simple（att_buf，512字节）缓冲区中，该缓冲区由所有连接实例共享，而BUSY标志、长读取句柄和
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 3.6.0 ~ 4.5.0 -

二、漏洞 CVE-2026-10660 的公开POC

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三、漏洞 CVE-2026-10660 的情报信息

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CVE-2026-10660 补丁与修复 (1)

CVE-2026-10660 厂商安全公告 (1)

IV. Related Vulnerabilities

Same product: zephyr
Same vendor: zephyrproject
Same weakness: CWE-787

V. Comments for CVE-2026-10660

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