How severe is CVE-2025-15538?

CVE-2025-15538 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2025-15538 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-15538?

CVE-2025-15538 affects Assimp. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-15538?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-15538 have an EU (EUVD) identifier?

Yes. CVE-2025-15538 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-3252.

When was CVE-2025-15538 published?

CVE-2025-15538 was published on 2026-01-18 and last updated on 2026-06-17.

CVE-2025-15538

CVE-2025-15538 is a medium-severity vulnerability in Assimp with a CVSS 3.x base score of 5.3. 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-416.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 4.3
CVSS v4: 1.9
EPSS exploit prediction: 0% (6th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-3252
Weakness: CWE-416
Affected product: Assimp
Published: 2026-01-18
Last modified: 2026-06-17

Description

A security vulnerability has been detected in Open Asset Import Library Assimp up to 6.0.2. Affected by this vulnerability is the function Assimp::LWOImporter::FindUVChannels of the file /src/assimp/code/AssetLib/LWO/LWOMaterial.cpp. Such manipulation leads to use after free. The attack needs to be performed locally. The exploit has been disclosed publicly and may be used. This and similar defects are tracked and handled via issue #6128.

Frequently asked questions

What is CVE-2025-15538?: A security vulnerability has been detected in Open Asset Import Library Assimp up to 6.0.2. Affected by this vulnerability is the function Assimp::LWOImporter::FindUVChannels of the file /src/assimp/code/AssetLib/LWO/LWOMaterial.cpp. Such manipulation leads to use after free. The attack needs to be performed locally. The exploit has been disclosed publicly and may be used. This and similar defects are tracked and handled via issue #6128.
How severe is CVE-2025-15538?: CVE-2025-15538 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2025-15538 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-15538?: CVE-2025-15538 affects Assimp. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-15538?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-15538 have an EU (EUVD) identifier?: Yes. CVE-2025-15538 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-3252.
When was CVE-2025-15538 published?: CVE-2025-15538 was published on 2026-01-18 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:assimp:assimp:*:*:*:*:*:*:*:*

More vulnerabilities in Assimp

CVE-2022-45748 — High (CVSS 8.8): An issue was discovered with assimp 5.1.4, a use after free occurred in function…
CVE-2024-45679 — High (CVSS 8.4): Heap-based buffer overflow vulnerability in Assimp versions prior to 5.4.3 allows a local attacker to execute arbitrary…
CVE-2024-48423 — High (CVSS 7.8): An issue in assimp v.5.4.3 allows a local attacker to execute arbitrary code via the CallbackToLogRedirector function…
CVE-2024-40724 — High (CVSS 7.8): Heap-based buffer overflow vulnerability in Assimp versions prior to 5.4.2 allows a local attacker to execute arbitrary…
CVE-2022-38528 — Medium (CVSS 6.5): Open Asset Import Library (assimp) commit 3c253ca was discovered to contain a segmentation violation via the component…
CVE-2025-3015 — Medium (CVSS 6.3): A vulnerability classified as critical has been found in Open Asset Import Library Assimp 5.4.3. This affects the…

All CVEs affecting Assimp →

Other CWE-416 (Use After Free) vulnerabilities

CVE-2026-13782 — Critical (CVSS 10.0): Use after free in Browser in Google Chrome prior to 150.0.7871.47 allowed a remote attacker who had compromised the…
CVE-2026-4725 — Critical (CVSS 10.0): Sandbox escape due to use-after-free in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 149…
CVE-2026-4688 — Critical (CVSS 10.0): Sandbox escape due to use-after-free in the Disability Access APIs component. This vulnerability was fixed in Firefox…
CVE-2025-24085 — Critical (CVSS 10.0): A use after free issue was addressed with improved memory management. This issue is fixed in iOS 18.3 and iPadOS 18.3,…
CVE-2024-43102 — Critical (CVSS 10.0): Concurrent removals of certain anonymous shared memory mappings by using the UMTX_SHM_DESTROY sub-request of…
CVE-2021-32495 — Critical (CVSS 10.0): Radare2 has a use-after-free vulnerability in pyc parser's get_none_object function. Attacker can read freed memory…

Browse all CWE-416 (Use After Free) vulnerabilities →