What is CVE-2022-28711?

CVE-2022-28711 is a critical-severity vulnerability in Ardupilot Apweb, classified under Improper Input Validation. CVSS score: 9.8/10. Published 2022-04-14.

How severe is CVE-2022-28711?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Buffer overflow in Ardupilot Apweb

CVE-2022-28711

A memory corruption vulnerability exists in the cgi.c unescape functionality of ArduPilot APWeb master branch 50b6b7ac - master branch 46177cb9. A specially-crafted HTTP request can lead to memory corruption. An attacker can send a network request to trigger this vulnerability.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2022-04-14 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.017 (76.5th percentile), scored 2026-10-03.

Low probability of exploitation in the next 30 days, but still tracked. 77th percentile — 76.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.017 · newest: 0.017 · change: 0.000

Affected products

Ardupilot Apweb — versions master commit 50b6b7ac - master commit 46177cb9

Weakness classification (CWE)

References

talosintelligence.com/vulnerability_reports/TALOS-2022-1512 (Exploit, Third Party Advisory)
www.talosintelligence.com/vulnerability_reports/TALOS-2022-1512 (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2022-28711?: CVE-2022-28711 is a critical-severity vulnerability in Ardupilot Apweb, classified under Improper Input Validation. CVSS score: 9.8/10. Published 2022-04-14.
How severe is CVE-2022-28711?: Critical severity. CVSS v3 base score is 9.8 out of 10.