CVE-2024-44856Public exploitNetwork attack vector

Remote planner crash via shutdown null dereference

Published Dec 6, 2024 · Updated Dec 11, 2024

NULL pointer dereference in Open Robotics Navigation2 for ROS 2 Humble and Iron allows remote attackers to crash the planner. The Smac planner's findCircumscribedCost function reads costmap_ros_ after the cost map has shut down, dereferencing a pointer into the zero page. A ComputePathToPose action accepted during shutdown can reach the invalid object and abort the planner process, interrupting navigation.

CVSS severity7.5
High
EPSS probability0.59%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

NULL pointer dereference in Open Robotics Navigation2 for ROS 2 Humble and Iron allows remote attackers to crash the planner. The Smac planner's findCircumscribedCost function reads costmap_ros_ after the cost map has shut down, dereferencing a pointer into the zero page. A ComputePathToPose action accepted during shutdown can reach the invalid object and abort the planner process, interrupting navigation.

The record

CVE
CVE-2024-44856
Published
Dec 6, 2024
Updated
Dec 11, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-476, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 6, 2024CVE publishedPublication date reported by the CVE source.
  2. Dec 11, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-476NULL Pointer Dereference
T1499Endpoint Denial of Service

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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