CVE-2021-41490Network attack vector

Service crash via unreleased LazyPRM states

Published Jun 17, 2022 · Updated Aug 4, 2024

Memory leaks in LazyPRM.cpp in Open Motion Planning Library 1.5.0 allow attackers to exhaust memory by repeatedly running the planner. LazyPRM::solve clones states at allocation sites on lines 324, 343, and 368 after the final freeMemory call, so those allocations remain unreleased. Exploitation requires a consuming application to invoke the affected planner; accumulating leaked states can exhaust memory and crash the process.

CVSS severity7.5
High
EPSS probability1.05%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Memory leaks in LazyPRM.cpp in Open Motion Planning Library 1.5.0 allow attackers to exhaust memory by repeatedly running the planner. LazyPRM::solve clones states at allocation sites on lines 324, 343, and 368 after the final freeMemory call, so those allocations remain unreleased. Exploitation requires a consuming application to invoke the affected planner; accumulating leaked states can exhaust memory and crash the process.

The record

CVE
CVE-2021-41490
Published
Jun 17, 2022
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-401, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 17, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 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

5.0NIST NVDAV:N/AC:L/Au:N/C:N/I:N/A:P
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.

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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 exploitUnconfirmed

Weakness, pattern, technique

CWE-401Missing Release of Memory after Effective Lifetime
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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