PX4 PX4-Autopilot up to 1.17.0-rc1 CAN tattu_can stack-based overflow

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in PX4 PX4-Autopilot up to 1.17.0-rc1. The affected element is the function tattu_can of the component CAN Handler. The manipulation results in stack-based overflow. This vulnerability is known as CVE-2026-32707. An attack on the physical device is feasible. No exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in PX4 PX4-Autopilot up to 1.17.0-rc1. It has been classified as critical. Affected is the function tattu_can of the component CAN 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. CVE summarizes:

PX4 autopilot is a flight control solution for drones. Prior to 1.17.0-rc2, tattu_can contains an unbounded memcpy in its multi-frame assembly loop, allowing stack memory overwrite when crafted CAN frames are processed. In deployments where tattu_can is enabled and running, a CAN-injection-capable attacker can trigger a crash (DoS) and memory corruption. This vulnerability is fixed in 1.17.0-rc2.

The advisory is shared for download at github.com. This vulnerability is traded as CVE-2026-32707 since 03/13/2026. The exploitability is told to be easy. The attack needs to be approached locally. The exploitation doesn't require any form of authentication. There are known technical details, but no exploit is available.

Upgrading to version 1.17.0-rc2 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-12152). Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Name

Version

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.2
VulDB Meta Temp Score: 5.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 6.1
NVD Vector: 🔒

CNA Base Score: 5.2
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: Yes
Local: Yes
Remote: No

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-2026-32707 (🔒)
GCVE (CVE): GCVE-0-2026-32707
GCVE (VulDB): GCVE-100-351060
EUVD: 🔒

Entryinfo

Created: 03/13/2026 23:19
Updated: 03/21/2026 01:14
Changes: 03/13/2026 23:19 (65), 03/13/2026 23:42 (1), 03/21/2026 01:14 (12)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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