CVE-2021-46896: dronecode px4_drone_autopilot Classic Buffer Overflow

Vulnerability summary

CVE-2021-46896 is a high (CVSS 7.5) Classic Buffer Overflow vulnerability in dronecode px4_drone_autopilot. EPSS estimates a 0.81% chance of exploitation in the next 30 days, higher than 56.3% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 06-07-2023
   PublishedVulnerability first disclosed.
2. 20-11-2024
   Last modifiedVulnerability information updated.

Description

Buffer Overflow vulnerability in PX4-Autopilot allows attackers to cause a denial of service via handler function handling msgid 332.

• CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer.