CVE-2024-38910Public exploitNetwork attack vector

Service interruption via stale scan-filter pointer

Published Dec 5, 2024 · Updated Dec 6, 2024

Use-after-free in Nav2 Humble on ROS 2 allows remote attackers to stop localization via a dynamic parameter request. During parameter reinitialization, dynamicParametersCallback resets laser_scan_sub_ without first stopping laser_scan_filter_, which then dereferences the freed subscriber. A reachable ROS 2 parameter service and a running AMCL node are required; triggering the flaw stops nav2_amcl.

CVSS severity7.5
High
EPSS probability0.53%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use-after-free in Nav2 Humble on ROS 2 allows remote attackers to stop localization via a dynamic parameter request. During parameter reinitialization, dynamicParametersCallback resets laser_scan_sub_ without first stopping laser_scan_filter_, which then dereferences the freed subscriber. A reachable ROS 2 parameter service and a running AMCL node are required; triggering the flaw stops nav2_amcl.

The record

CVE
CVE-2024-38910
Published
Dec 5, 2024
Updated
Dec 6, 2024
Vendor
Open Source Robotics Foundation
Product
ROS 2
Classifications
CWE-416, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 5, 2024CVE publishedPublication date reported by the CVE source.
  2. Dec 6, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=*

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Open Source Robotics Foundation · ROS 2version=0 <=*
Open Source Robotics Foundation · Nav2version=0 <=*

Published CVSS scores

7.5CISA-ADPCVSS: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.

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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-416Use After Free
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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