CVE-2021-42218: OMPL v1.5.2 contains a memory leak in VFRRT.cpp

This week

HIGH 7.5REMOTEDOWNGRADE

CVE-2021-42218 is a high-severity flaw (CVSS 7.5) affecting open motion planning library. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

OMPL v1.5.2 contains a memory leak in VFRRT.cpp

Why this priority

High severity
Public exploit reference
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.2% (top 32%)
CISA exploited list	No
Weakness	CWE-401
Published	2022-05-03
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: rice

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2022-05-03 11:15 UTCPublished CVE record published
2026-06-17 04:09 UTCUpdated Record last modified

rice open motion planning library DOWNGRADE

Affected: 1.5.2

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.5.2

1. Check installed version

apt-cache policy open-motion-planning-library || rpm -q open-motion-planning-library || open-motion-planning-library --version

2. No fixed release: DOWNGRADE to a release before 1.5.2 (Debian / Ubuntu)

apt-cache madison open-motion-planning-library sudo apt install open-motion-planning-library=<VERSION_BEFORE_1.5.2> sudo apt-mark hold open-motion-planning-library

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list open-motion-planning-library sudo dnf downgrade open-motion-planning-library-<VERSION_BEFORE_1.5.2> sudo dnf versionlock add open-motion-planning-library

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2021-42218?

open motion planning library: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2021-42218 being exploited?

CVE-2021-42218 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2021-42218 affect?

CVE-2021-42218 affects open motion planning library. Severity is high (CVSS 7.5). OMPL v1.5.2 contains a memory leak in VFRRT.cpp

How urgent is CVE-2021-42218?

Priority 53/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

Related CVEs

CVE-2021-41490 HIGH 7.5 DOWNGRADE Memory leaks in LazyPRM.cpp of OMPL v1.5.0 can cause unexpected behavior.

References

← Back to latest CVEs