How severe is CVE-2021-45948?

CVE-2021-45948 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2021-45948 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-45948?

CVE-2021-45948 primarily affects Assimp. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-45948?

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

When was CVE-2021-45948 published?

CVE-2021-45948 was published on 2022-01-01 and last updated on 2026-06-17.

CVE-2021-45948

CVE-2021-45948 is a medium-severity vulnerability in Assimp with a CVSS 3.x base score of 5.5. 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-787.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v2: 4.3
EPSS exploit prediction: 1% (57th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Assimp
Published: 2022-01-01
Last modified: 2026-06-17

Description

Open Asset Import Library (aka assimp) 5.1.0 and 5.1.1 has a heap-based buffer overflow in _m3d_safestr (called from m3d_load and Assimp::M3DWrapper::M3DWrapper).

Frequently asked questions

What is CVE-2021-45948?: Open Asset Import Library (aka assimp) 5.1.0 and 5.1.1 has a heap-based buffer overflow in _m3d_safestr (called from m3d_load and Assimp::M3DWrapper::M3DWrapper).
How severe is CVE-2021-45948?: CVE-2021-45948 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2021-45948 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-45948?: CVE-2021-45948 primarily affects Assimp. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-45948?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-45948 published?: CVE-2021-45948 was published on 2022-01-01 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:assimp:assimp:5.1.0:*:*:*:*:*:*:*
cpe:2.3:a:assimp:assimp:5.1.1:*:*:*:*:*:*:*

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