CVE-2026-32708— Zenoh uORB Subscriber Allows Arbitrary Stack Allocation (PX4/PX4-Autopilot)
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I. Basic Information for CVE-2026-32708
Vulnerability Information
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Vulnerability Title
Zenoh uORB Subscriber Allows Arbitrary Stack Allocation (PX4/PX4-Autopilot)
Source: NVD (National Vulnerability Database)
Vulnerability Description
PX4 autopilot is a flight control solution for drones. Prior to 1.17.0-rc2, the Zenoh uORB subscriber allocates a stack VLA directly from the incoming payload length without bounds. A remote Zenoh publisher can send an oversized fragmented message to force an unbounded stack allocation and copy, causing a stack overflow and crash of the Zenoh bridge task. This vulnerability is fixed in 1.17.0-rc2.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
栈缓冲区溢出
Source: NVD (National Vulnerability Database)
Vulnerability Title
PX4-Autopilot 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
PX4-Autopilot是PX4 Autopilot开源的一个无人机自动驾驶系统。 PX4-Autopilot 1.17.0-rc2之前版本存在安全漏洞，该漏洞源于Zenoh uORB订阅者直接从传入有效载荷长度分配栈可变长度数组时未进行边界检查，可能导致栈溢出和Zenoh桥接任务崩溃。
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 |
|---|---|---|---|---|
| PX4 | PX4-Autopilot | < 1.17.0-rc2 | - |
II. Public POCs for CVE-2026-32708
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|---|
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Same Patch Batch · PX4 · 2026-03-13 · 7 CVEs total
| CVE-2026-32706 | 7.1 HIGH | PX4 autopilot has a global buffer overflow in crsf_rc via oversized variable-length known |
| CVE-2026-32705 | 6.8 MEDIUM | PX4 autopilot BST Device Name Length Can Overflow Driver Buffer |
| CVE-2026-32709 | 5.4 MEDIUM | PX4 Autopilot MAVLink FTP Unauthenticated Path Traversal (Arbitrary File Read/Write/Delete |
| CVE-2026-32724 | 5.3 MEDIUM | PX4 autopilot has a heap Use-After-Free in MavlinkShell::available() via SERIAL_CONTROL Ra |
| CVE-2026-32707 | 5.2 MEDIUM | PX4 autopilot has a stack buffer overflow in tattu_can due to unbounded memcpy in frame as |
| CVE-2026-32713 | 4.3 MEDIUM | PX4 Autopilot MAVLink FTP Session Validation Logic Error Allows Operations on Invalid File |
IV. Related Vulnerabilities
Same product: PX4-Autopilot
- CVE-2026-32743
PX4 Autopilot: Stack-based Buffer Overflow via Oversized Pat - CVE-2026-32724
PX4 autopilot has a heap Use-After-Free in MavlinkShell::ava - CVE-2026-32713
PX4 Autopilot MAVLink FTP Session Validation Logic Error All - CVE-2026-32709
PX4 Autopilot MAVLink FTP Unauthenticated Path Traversal (Ar - CVE-2026-32707
PX4 autopilot has a stack buffer overflow in tattu_can due t
Same vendor: PX4
- CVE-2026-1579
PX4 Autopilot Missing authentication for critical function - CVE-2026-32743
PX4 Autopilot: Stack-based Buffer Overflow via Oversized Pat - CVE-2026-32724
PX4 autopilot has a heap Use-After-Free in MavlinkShell::ava - CVE-2026-32713
PX4 Autopilot MAVLink FTP Session Validation Logic Error All - CVE-2026-32709
PX4 Autopilot MAVLink FTP Unauthenticated Path Traversal (Ar
Same weakness: CWE-121
- CVE-2026-8258
Squirrel sqstdstring.cpp validate_format stack-based overflo - CVE-2026-8234
EFM ipTIME A8004T WifiBasicSet formWifiBasicSet stack-based - CVE-2026-6665
PgBouncer buffer overflow in SCRAM - CVE-2026-41509
Integer underflow in crypto_sign_open() leads to buffer over - CVE-2026-8138
Tenda CX12L SetPptpServerCfg” formSetPPTPServer stack-based
V. Comments for CVE-2026-32708
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