CVE-2023-51787: An issue was discovered in Wind River VxWorks 7 22.09 and 23.03

This month

HIGH 7.5REMOTEMITIGATE

CVE-2023-51787 is a high-severity flaw (CVSS 7.5) affecting vxworks. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An issue was discovered in Wind River VxWorks 7 22.09 and 23.03. If a VxWorks task or POSIX thread that uses OpenSSL exits, limited per-task memory is not freed, resulting in a memory leak.

Why this priority

High severity
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	0.5% (top 58%)
CISA exploited list	No
Weakness	CWE-200
Published	2024-02-15
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: windriver

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

Am I affected?

Timeline

2024-02-15 06:15 UTCPublished CVE record published
2026-06-17 06:41 UTCUpdated Record last modified

windriver vxworks MITIGATE

Affected: 7 22.09 · 7 23.03

Fixed in: no fixed release known

Safe to downgrade to: a release before 7

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

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-2023-51787?

vxworks: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2023-51787 being exploited?

CVE-2023-51787 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-2023-51787 affect?

CVE-2023-51787 affects vxworks. Severity is high (CVSS 7.5). An issue was discovered in Wind River VxWorks 7 22.09 and 23.03. If a VxWorks task or POSIX thread that uses OpenSSL exits, limited per-task memory is not freed, resulting in a memory leak.

How urgent is CVE-2023-51787?

Priority 42/100. High severity; Remotely exploitable, no login, no user action

Software pages

OpenSSL vulnerabilities

Related CVEs

CVE-2023-38346 HIGH 8.8 MITIGATE An issue was discovered in Wind River VxWorks 6.9 and 7

References

← Back to latest CVEs