How severe is CVE-2025-4638?

CVE-2025-4638 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-4638 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (36th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-4638?

CVE-2025-4638 affects Pointclouds Point Cloud Library. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-4638?

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

Does CVE-2025-4638 have an EU (EUVD) identifier?

Yes. CVE-2025-4638 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-14916.

When was CVE-2025-4638 published?

CVE-2025-4638 was published on 2025-05-14 and last updated on 2026-06-17.

CVE-2025-4638

CVE-2025-4638 is a critical-severity vulnerability in Pointclouds Point Cloud Library with a CVSS 3.x base score of 9.8. 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-119.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v4: 9.2
EPSS exploit prediction: 0% (36th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-14916
Weakness: CWE-119
Affected product: Pointclouds Point Cloud Library
Published: 2025-05-14
Last modified: 2026-06-17

Description

A vulnerability exists in the inftrees.c component of the zlib library, which is bundled within the PointCloudLibrary (PCL). This issue may allow context-dependent attackers to cause undefined behavior by exploiting improper pointer arithmetic. Since version 1.14.0, PCL by default uses a zlib installation from the system, unless the user sets WITH_SYSTEM_ZLIB=FALSE. So this potential vulnerability is only relevant if the PCL version is older than 1.14.0 or the user specifically requests to not use the system zlib.

Frequently asked questions

What is CVE-2025-4638?: A vulnerability exists in the inftrees.c component of the zlib library, which is bundled within the PointCloudLibrary (PCL). This issue may allow context-dependent attackers to cause undefined behavior by exploiting improper pointer arithmetic. Since version 1.14.0, PCL by default uses a zlib installation from the system, unless the user sets WITH_SYSTEM_ZLIB=FALSE. So this potential vulnerability is only relevant if the PCL version is older than 1.14.0 or the user specifically requests to not use the system zlib.
How severe is CVE-2025-4638?: CVE-2025-4638 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-4638 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (36th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-4638?: CVE-2025-4638 affects Pointclouds Point Cloud Library. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-4638?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2025-4638 have an EU (EUVD) identifier?: Yes. CVE-2025-4638 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-14916.
When was CVE-2025-4638 published?: CVE-2025-4638 was published on 2025-05-14 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:pointclouds:point_cloud_library:*:*:*:*:*:*:*:*

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