PX4 PX4-Autopilot up to 1.17.0-rc1 Fragmented Message stack-based overflow

CVSS Meta Temp Score
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CTI Interest Score
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7.0$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in PX4 PX4-Autopilot up to 1.17.0-rc1. This affects an unknown part of the component Fragmented Message Handler. Performing a manipulation results in stack-based overflow. This vulnerability is known as CVE-2026-32708. Attacking locally is a requirement. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in PX4 PX4-Autopilot up to 1.17.0-rc1. This affects some unknown functionality of the component Fragmented Message Handler. The manipulation with an unknown input leads to a stack-based overflow vulnerability. CWE is classifying the issue as CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

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.

The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2026-32708 since 03/13/2026. The exploitability is told to be easy. An attack has to be approached locally. Neither technical details nor an exploit are publicly available.

Upgrading to version 1.17.0-rc2 eliminates this vulnerability.

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Productinfo

Vendor

Name

Version

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.0
VulDB Meta Temp Score: 7.0

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 8.0
NVD Vector: 🔒

CNA Base Score: 7.8
CNA Vector (GitHub_M): 🔒

CVSSv2info

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Stack-based overflow
CWE: CWE-121 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: PX4-Autopilot 1.17.0-rc2

Timelineinfo

03/13/2026 Advisory disclosed
03/13/2026 +0 days CVE reserved
03/13/2026 +0 days VulDB entry created
03/21/2026 +8 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: github.com
Status: Confirmed

CVE: CVE-2026-32708 (🔒)
GCVE (CVE): GCVE-0-2026-32708
GCVE (VulDB): GCVE-100-351045

Entryinfo

Created: 03/13/2026 23:12
Updated: 03/21/2026 01:14
Changes: 03/13/2026 23:12 (64), 03/21/2026 01:14 (12)
Complete: 🔍
Cache ID: 216::103

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