How severe is CVE-2023-51787?

CVE-2023-51787 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2023-51787 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-51787?

CVE-2023-51787 primarily affects Windriver Vxworks. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-51787?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2023-51787 have an EU (EUVD) identifier?

Yes. CVE-2023-51787 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-56471.

When was CVE-2023-51787 published?

CVE-2023-51787 was published on 2024-02-15 and last updated on 2026-06-17.

CVE-2023-51787

CVE-2023-51787 is a high-severity vulnerability in Windriver Vxworks with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-200.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 0% (38th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-56471
Weakness: CWE-200
Affected product: Windriver Vxworks
Published: 2024-02-15
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2023-51787?: 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 severe is CVE-2023-51787?: CVE-2023-51787 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2023-51787 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-51787?: CVE-2023-51787 primarily affects Windriver Vxworks. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-51787?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2023-51787 have an EU (EUVD) identifier?: Yes. CVE-2023-51787 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-56471.
When was CVE-2023-51787 published?: CVE-2023-51787 was published on 2024-02-15 and last updated on 2026-06-17.

References

https://support2.windriver.com/index.php?page=cve&on=view&id=CVE-2023-51787

Affected products (2)

cpe:2.3:o:windriver:vxworks:7:22.09:*:*:*:*:*:*
cpe:2.3:o:windriver:vxworks:7:23.03:*:*:*:*:*:*

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