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Fencer Vulns
medium 4.5

CVE-2025-9020 json

PX4 PX4-Autopilot Mavlink Shell Closing mavlink_receiver.cpp handle_message_serial_control use after free

published 2025-08-15 14 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-25008

cvss
4.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 6%
public exploits
0
none known

Summary

A vulnerability was found in PX4 PX4-Autopilot up to 1.15.4. This issue affects the function MavlinkReceiver::handle_message_serial_control of the file src/modules/mavlink/mavlink_receiver.cpp of the component Mavlink Shell Closing Handler. The manipulation of the argument _mavlink_shell leads to use after free. An attack has to be approached locally. The complexity of an attack is rather high. The exploitation is known to be difficult. The identifier of the patch is 4395d4f00c49b888f030f5b43e2a779f1fa78708. It is recommended to apply a patch to fix this issue.

Patch / fix

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
14 mo ago

Exploit prediction

0.17% chance of exploitation in the next 30 days, higher than 6% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 4.0 2.0 CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X
CNA 3.1 4.5 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C
CNA 3.0 4.5 CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C
CNA 2.0 3.5 AV:L/AC:H/Au:S/C:P/I:P/A:P/E:ND/RL:OF/RC:C
CNA 4.0 2.0 CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CNA 3.1 4.5 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L
CNA 2.0 3.5 AV:L/AC:H/Au:S/C:P/I:P/A:P

Affected products

  • PX4 PX4-Autopilot

Classification

Weakness
  • CWE-416 Use After Free
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.