CVE-2026-102809CWE-789

CVE-2026-102809

Medium · published September 29, 2026

CVSS v3.1
6.5
EPSS
0%
Percentile
40.7
In the wild
Unconfirmed
What it is

PX4 Autopilot through 1.17.0 contains an uncontrolled stack allocation vulnerability in the file2 test command that fails to validate the write chunk size parameter. Attackers with shell access can supply an excessively large value to the -c option to trigger stack overflow and crash the flight controller.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
7.1 · CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
EPSS
0.00483 · 40.7th percentile
Weakness
CWE-789 · Memory Allocation with Excessive Size Value
Published
2026-09-29T22:17Z
References (6)
https://github.com/PX4/PX4-Autopilot · [email protected]https://github.com/PX4/PX4-Autopilot/blob/d6f12ad1c4f70ad3230afd7d86e971421e02fef4/src/systemcmds/tests/test_file2.c#L86-L130 · [email protected]https://github.com/PX4/PX4-Autopilot/commit/46a77d8ad15e7929ef261c41083dffd1bbfa9f85 · [email protected]https://github.com/PX4/PX4-Autopilot/pull/28586 · [email protected]https://www.vulncheck.com/advisories/px4-autopilot-through-1.17.0-stack-exhaustion-via-tests-file2-command · [email protected]https://github.com/PX4/PX4-Autopilot/pull/28586 · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 01 OCT 03:44Z
    EPSS moved — → 0%
    epss
  • 29 SEP 17:22Z
    PX4 Autopilot through 1.17.0 Stack Exhaustion via tests file2 Command
    cvelistv5