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CVE-2024-40427· NVD / CVE Program· CNA mitre

Stack Buffer Overflow in PX4-Autopilot v1.14.3, which allows attackers to execute commands to exploit this vulnerability and cause the progr

Stack Buffer Overflow in PX4-Autopilot v1.14.3, which allows attackers to execute commands to exploit this vulnerability and cause the program to refuse to execute

HighCVSS 7.9 · v3.1—No exploit No fix recorded

Noroxi analysis

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Published
Jan 7, 2025
Updated
Jun 17, 2026
EPSS
0.3% · 26th percentile
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Report tools

JSON

Action score

31

Monitor

Low priority for now.

CVSS
31 / 40 · 7.9 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.3%

CISA SSVC decision

Exploitation
proof of concept
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

Affected systems

VendorProduct
dronecodepx4 drone autopilot

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • dronecode px4 drone autopilotbefore 1.14.3

Same product

dronecode: all records

Other highest-scoring records for the same primary product.

  • CVE-2023-46256PX4-Autopilot Heap Buffer Overflow Bug
    39Monitor
  • CVE-2026-32708Zenoh uORB Subscriber Allows Arbitrary Stack Allocation (PX4/PX4-Autopilot)
    32Monitor
  • CVE-2026-32706PX4 autopilot has a global buffer overflow in crsf_rc via oversized variable-length known packet
    32Monitor
  • CVE-2026-26742PX4 Autopilot versions 1.12.x through 1.15.x contain a protection mechanism failure in the "Re-arm Grace Period" logic.
    32Monitor
  • CVE-2026-26741PX4 Autopilot versions 1.12.x through 1.15.x contain a logic flaw in the mode switching mechanism.
    32Monitor
  • CVE-2024-38952PX4-Autopilot v1.14.3 was discovered to contain a buffer overflow via the topic_name parameter at /logger/logged_topics.cpp.
    30Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2023-46256434 days apartPX4-Autopilot Heap Buffer Overflow Bug
    39Monitor
  • CVE-2026-32706433 days apartPX4 autopilot has a global buffer overflow in crsf_rc via oversized variable-length known packet
    32Monitor
  • CVE-2024-38952196 days apartPX4-Autopilot v1.14.3 was discovered to contain a buffer overflow via the topic_name parameter at /logger/logged_topics.cpp.
    30Monitor
  • CVE-2024-38951196 days apartA buffer overflow in PX4-Autopilot v1.12.3 allows attackers to cause a Denial of Service (DoS) via a crafted MavLink message.
    26Monitor
  • CVE-2024-30799261 days apartAn issue in PX4 Autopilot v1.14 and before allows a remote attacker to execute arbitrary code and cause a denial of service via the Breach R
    17Monitor
  • CVE-2023-47625421 days apartGlobal Buffer Overflow leading to denial of service in PX4-Autopilot
    17Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • A user must open a link or visit a page.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted

Impact can extend beyond the vulnerable component (scope changes).

Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
Required
Scope
Changed
Confidentiality impact
None
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-120 · Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:N/I:H/A:H

nvd-secondary

Root cause

When data is copied, the source length is not compared with the size of the destination buffer. Excess data overwrites adjacent memory.

The bug in code

The whole CWE-120 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

c
char buf[256];memcpy(buf, pkt->data, pkt->len);

Fixed

c
char buf[256];if (pkt->len > sizeof(buf)) {  return -EINVAL;}memcpy(buf, pkt->data, pkt->len);

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records