CVE-2024-44855Public exploitNetwork attack vector

Planner crash via costmap shutdown race

Published Dec 6, 2024 · Updated Dec 11, 2024

NULL pointer dereference in ROS 2 Navigation2 Humble and Iron allows remote attackers to crash the planner during shutdown. PlannerServer action handling can continue into NavfnPlanner::makePlan after early costmap_ros_ shutdown, so makePlan dereferences the invalid costmap_ while sizing the navigation array. Exploitation requires a planning action to overlap shutdown; the resulting invalid write aborts the planner process and interrupts navigation service.

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 ROS 2 Navigation2 Humble and Iron allows remote attackers to crash the planner during shutdown. PlannerServer action handling can continue into NavfnPlanner::makePlan after early costmap_ros_ shutdown, so makePlan dereferences the invalid costmap_ while sizing the navigation array. Exploitation requires a planning action to overlap shutdown; the resulting invalid write aborts the planner process and interrupts navigation service.

The record

CVE
CVE-2024-44855
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
7.5NVDCVSS: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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 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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