How severe is CVE-2025-3549?

CVE-2025-3549 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-2025-3549 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-3549?

CVE-2025-3549 affects Assimp. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-3549?

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

Does CVE-2025-3549 have an EU (EUVD) identifier?

Yes. CVE-2025-3549 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-10860.

When was CVE-2025-3549 published?

CVE-2025-3549 was published on 2025-04-14 and last updated on 2026-06-17.

CVE-2025-3549

CVE-2025-3549 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-119.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 4.3
CVSS v4: 1.9
EPSS exploit prediction: 0% (15th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-10860
Weakness: CWE-119
Affected product: Assimp
Published: 2025-04-14
Last modified: 2026-06-17

Description

A vulnerability, which was classified as critical, was found in Open Asset Import Library Assimp 5.4.3. Affected is the function Assimp::MD3Importer::ValidateSurfaceHeaderOffsets of the file code/AssetLib/MD3/MD3Loader.cpp of the component File Handler. The manipulation leads to heap-based buffer overflow. The attack needs to be approached locally. The exploit has been disclosed to the public and may be used.

Frequently asked questions

What is CVE-2025-3549?: A vulnerability, which was classified as critical, was found in Open Asset Import Library Assimp 5.4.3. Affected is the function Assimp::MD3Importer::ValidateSurfaceHeaderOffsets of the file code/AssetLib/MD3/MD3Loader.cpp of the component File Handler. The manipulation leads to heap-based buffer overflow. The attack needs to be approached locally. The exploit has been disclosed to the public and may be used.
How severe is CVE-2025-3549?: CVE-2025-3549 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-2025-3549 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-3549?: CVE-2025-3549 affects Assimp. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-3549?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-3549 have an EU (EUVD) identifier?: Yes. CVE-2025-3549 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-10860.
When was CVE-2025-3549 published?: CVE-2025-3549 was published on 2025-04-14 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:assimp:assimp:5.4.3:*:*:*:*:*:*:*

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-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) vulnerabilities

CVE-2026-2778 — Critical (CVSS 10.0): Sandbox escape due to incorrect boundary conditions in the DOM: Core & HTML component. This vulnerability was fixed in…
CVE-2026-2776 — Critical (CVSS 10.0): Sandbox escape due to incorrect boundary conditions in the Telemetry component in External Software. This vulnerability…
CVE-2025-1866 — Critical (CVSS 10.0): Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in warmcat libwebsockets allows…
CVE-2022-27625 — Critical (CVSS 10.0): A vulnerability regarding improper restriction of operations within the bounds of a memory buffer is found in the…
CVE-2022-27624 — Critical (CVSS 10.0): A vulnerability regarding improper restriction of operations within the bounds of a memory buffer is found in the…
CVE-2020-11896 — Critical (CVSS 10.0): The Treck TCP/IP stack before 6.0.1.66 allows Remote Code Execution, related to IPv4 tunneling.

Browse all CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) vulnerabilities →