Critical
assimp — security advisory
A vulnerability, which was classified as critical, has been found in Open Asset Import Library Assimp 5.4.3. This issue affects the function Assimp::BaseImporter::ConvertToUTF8 of the file BaseImporter.cpp of the component File Handler. The manipulation leads to heap-based buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.
- Products
- assimp
- Affected versions
- 3.0~dfsg-4ubuntu4, 3.1.1~dfsg-5, 3.2~dfsg-1, 3.2~dfsg-2, 3.2~dfsg-3, 3.3.1~dfsg-5, 3.3.1~dfsg-5+build1, 3.3.1~dfsg-5ubuntu1, 4.0.1~dfsg-1, 4.0.1~dfsg-1~exp2, 4.1.0~dfsg-1, 4.1.0~dfsg-2, 4.1.0~dfsg-3, 4.1.0~dfsg-5, 4.1.0~dfsg-5ubuntu1, 5.0.1~ds0-1build1, 5.0.1~ds0-2, 5.0.1~ds0-3ubuntu1, 5.1.4~ds0-1, 5.1.5~ds0-1, 5.1.6~ds0-1, 5.2.0~ds0-2, 5.2.1~ds0-1, 5.2.2~ds0-1, 5.2.5~ds0-1.1build1, 5.3.1+ds-1, 5.3.1+ds-2, 5.3.1+ds-2build1, 5.4.3+ds-2, 6.0.2+ds-1, 6.0.3+ds-1, 6.0.4+ds-1, 6.0.4+ds-1build1, 6.0.5+ds-1
- Fixed versions
- Not specified
- CVEs
- CVE-2025-2152
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 01:32 UTC · Revision 1
Source evidence
A vulnerability, which was classified as critical, has been found in Open Asset Import Library Assimp 5.4.3. This issue affects the function Assimp::BaseImporter::ConvertToUTF8 of the file BaseImporter.cpp of the component File Handler. The manipulation leads to heap-based buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.
osv:UBUNTU-CVE-2025-2152
assimp
Fixed versions: Not specified
assimp
Fixed versions: Not specified
assimp
Fixed versions: Not specified
assimp
Fixed versions: Not specified
assimp
Fixed versions: Not specified
assimp
Fixed versions: Not specified
assimp
Fixed versions: Not specified
assimp
Fixed versions: Not specified
Complete source record
{
"id": "5cb948b35c720467c41a12c6716d634ec568c82ec18aeceb98ac3916487d615e",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2025-2152",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2025-2152",
"summary": "A vulnerability, which was classified as critical, has been found in Open Asset Import Library Assimp 5.4.3. This issue affects the function Assimp::BaseImporter::ConvertToUTF8 of the file BaseImporter.cpp of the component File Handler. The manipulation leads to heap-based buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.",
"evidence": "osv:UBUNTU-CVE-2025-2152",
"products": [
{
"name": {
"value": "assimp",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "3.0~dfsg-4ubuntu4",
"evidence": "/affected/0/versions"
},
{
"value": "3.1.1~dfsg-5",
"evidence": "/affected/0/versions"
},
{
"value": "3.2~dfsg-1",
"evidence": "/affected/0/versions"
},
{
"value": "3.2~dfsg-2",
"evidence": "/affected/0/versions"
},
{
"value": "3.2~dfsg-3",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "assimp",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "3.3.1~dfsg-5",
"evidence": "/affected/1/versions"
},
{
"value": "3.3.1~dfsg-5ubuntu1",
"evidence": "/affected/1/versions"
},
{
"value": "3.3.1~dfsg-5+build1",
"evidence": "/affected/1/versions"
},
{
"value": "4.0.1~dfsg-1~exp2",
"evidence": "/affected/1/versions"
},
{
"value": "4.0.1~dfsg-1",
"evidence": "/affected/1/versions"
},
{
"value": "4.1.0~dfsg-1",
"evidence": "/affected/1/versions"
},
{
"value": "4.1.0~dfsg-2",
"evidence": "/affected/1/versions"
},
{
"value": "4.1.0~dfsg-3",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
"value": "assimp",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "4.1.0~dfsg-5",
"evidence": "/affected/2/versions"
},
{
"value": "4.1.0~dfsg-5ubuntu1",
"evidence": "/affected/2/versions"
},
{
"value": "5.0.1~ds0-1build1",
"evidence": "/affected/2/versions"
}
]
},
{
"name": {
"value": "assimp",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "5.0.1~ds0-2",
"evidence": "/affected/3/versions"
},
{
"value": "5.0.1~ds0-3ubuntu1",
"evidence": "/affected/3/versions"
},
{
"value": "5.1.4~ds0-1",
"evidence": "/affected/3/versions"
},
{
"value": "5.1.5~ds0-1",
"evidence": "/affected/3/versions"
},
{
"value": "5.1.6~ds0-1",
"evidence": "/affected/3/versions"
},
{
"value": "5.2.0~ds0-2",
"evidence": "/affected/3/versions"
},
{
"value": "5.2.1~ds0-1",
"evidence": "/affected/3/versions"
},
{
"value": "5.2.2~ds0-1",
"evidence": "/affected/3/versions"
}
]
},
{
"name": {
"value": "assimp",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "5.2.5~ds0-1.1build1",
"evidence": "/affected/4/versions"
},
{
"value": "5.3.1+ds-1",
"evidence": "/affected/4/versions"
},
{
"value": "5.3.1+ds-2",
"evidence": "/affected/4/versions"
},
{
"value": "5.3.1+ds-2build1",
"evidence": "/affected/4/versions"
}
]
},
{
"name": {
"value": "assimp",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "5.4.3+ds-2",
"evidence": "/affected/5/versions"
}
]
},
{
"name": {
"value": "assimp",
"evidence": "/affected/6/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "6.0.4+ds-1build1",
"evidence": "/affected/6/versions"
},
{
"value": "6.0.5+ds-1",
"evidence": "/affected/6/versions"
}
]
},
{
"name": {
"value": "assimp",
"evidence": "/affected/7/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "5.4.3+ds-2",
"evidence": "/affected/7/versions"
},
{
"value": "6.0.2+ds-1",
"evidence": "/affected/7/versions"
},
{
"value": "6.0.3+ds-1",
"evidence": "/affected/7/versions"
},
{
"value": "6.0.4+ds-1",
"evidence": "/affected/7/versions"
},
{
"value": "6.0.4+ds-1build1",
"evidence": "/affected/7/versions"
}
]
}
],
"severity": "critical",
"structured": {
"id": "UBUNTU-CVE-2025-2152",
"aliases": [
"UBUNTU-CVE-2025-2152"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
},
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N"
},
{
"type": "Ubuntu",
"score": "medium"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "assimp",
"purl": "pkg:deb/ubuntu/assimp?arch=source&distro=xenial",
"ecosystem": "Ubuntu:16.04:LTS"
},
"versions": [
"3.0~dfsg-4ubuntu4",
"3.1.1~dfsg-5",
"3.2~dfsg-1",
"3.2~dfsg-2",
"3.2~dfsg-3"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-2152.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "assimp-utils",
"binary_version": "3.2~dfsg-3"
},
{
"binary_name": "libassimp3v5",
"binary_version": "3.2~dfsg-3"
},
{
"binary_name": "python-pyassimp",
"binary_version": "3.2~dfsg-3"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "assimp",
"purl": "pkg:deb/ubuntu/assimp?arch=source&distro=bionic",
"ecosystem": "Ubuntu:18.04:LTS"
},
"versions": [
"3.3.1~dfsg-5",
"3.3.1~dfsg-5ubuntu1",
"3.3.1~dfsg-5+build1",
"4.0.1~dfsg-1~exp2",
"4.0.1~dfsg-1",
"4.1.0~dfsg-1",
"4.1.0~dfsg-2",
"4.1.0~dfsg-3"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-2152.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "assimp-utils",
"binary_version": "4.1.0~dfsg-3"
},
{
"binary_name": "libassimp4",
"binary_version": "4.1.0~dfsg-3"
},
{
"binary_name": "python-pyassimp",
"binary_version": "4.1.0~dfsg-3"
},
{
"binary_name": "python3-pyassimp",
"binary_version": "4.1.0~dfsg-3"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "assimp",
"purl": "pkg:deb/ubuntu/assimp?arch=source&distro=focal",
"ecosystem": "Ubuntu:20.04:LTS"
},
"versions": [
"4.1.0~dfsg-5",
"4.1.0~dfsg-5ubuntu1",
"5.0.1~ds0-1build1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-2152.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "assimp-testmodels",
"binary_version": "5.0.1~ds0-1build1"
},
{
"binary_name": "assimp-utils",
"binary_version": "5.0.1~ds0-1build1"
},
{
"binary_name": "libassimp5",
"binary_version": "5.0.1~ds0-1build1"
},
{
"binary_name": "python3-pyassimp",
"binary_version": "5.0.1~ds0-1build1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "assimp",
"purl": "pkg:deb/ubuntu/assimp?arch=source&distro=jammy",
"ecosystem": "Ubuntu:22.04:LTS"
},
"versions": [
"5.0.1~ds0-2",
"5.0.1~ds0-3ubuntu1",
"5.1.4~ds0-1",
"5.1.5~ds0-1",
"5.1.6~ds0-1",
"5.2.0~ds0-2",
"5.2.1~ds0-1",
"5.2.2~ds0-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-2152.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "assimp-testmodels",
"binary_version": "5.2.2~ds0-1"
},
{
"binary_name": "assimp-utils",
"binary_version": "5.2.2~ds0-1"
},
{
"binary_name": "libassimp5",
"binary_version": "5.2.2~ds0-1"
},
{
"binary_name": "python3-pyassimp",
"binary_version": "5.2.2~ds0-1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "assimp",
"purl": "pkg:deb/ubuntu/assimp?arch=source&distro=noble",
"ecosystem": "Ubuntu:24.04:LTS"
},
"versions": [
"5.2.5~ds0-1.1build1",
"5.3.1+ds-1",
"5.3.1+ds-2",
"5.3.1+ds-2build1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-2152.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "assimp-testmodels",
"binary_version": "5.3.1+ds-2build1"
},
{
"binary_name": "assimp-utils",
"binary_version": "5.3.1+ds-2build1"
},
{
"binary_name": "libassimp5",
"binary_version": "5.3.1+ds-2build1"
},
{
"binary_name": "python3-pyassimp",
"binary_version": "5.3.1+ds-2build1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "assimp",
"purl": "pkg:deb/ubuntu/assimp?arch=source&distro=questing",
"ecosystem": "Ubuntu:25.10"
},
"versions": [
"5.4.3+ds-2"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-2152.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "assimp-testmodels",
"binary_version": "5.4.3+ds-2"
},
{
"binary_name": "assimp-utils",
"binary_version": "5.4.3+ds-2"
},
{
"binary_name": "libassimp5",
"binary_version": "5.4.3+ds-2"
},
{
"binary_name": "python3-pyassimp",
"binary_version": "5.4.3+ds-2"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "assimp",
"purl": "pkg:deb/ubuntu/assimp?arch=source&distro=stonking",
"ecosystem": "Ubuntu:26.10"
},
"versions": [
"6.0.4+ds-1build1",
"6.0.5+ds-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-2152.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "assimp-testmodels",
"binary_version": "6.0.5+ds-1"
},
{
"binary_name": "assimp-utils",
"binary_version": "6.0.5+ds-1"
},
{
"binary_name": "libassimp6",
"binary_version": "6.0.5+ds-1"
},
{
"binary_name": "python3-pyassimp",
"binary_version": "6.0.5+ds-1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "assimp",
"purl": "pkg:deb/ubuntu/assimp?arch=source&distro=resolute",
"ecosystem": "Ubuntu:26.04:LTS"
},
"versions": [
"5.4.3+ds-2",
"6.0.2+ds-1",
"6.0.3+ds-1",
"6.0.4+ds-1",
"6.0.4+ds-1build1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-2152.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "assimp-testmodels",
"binary_version": "6.0.4+ds-1build1"
},
{
"binary_name": "assimp-utils",
"binary_version": "6.0.4+ds-1build1"
},
{
"binary_name": "libassimp6",
"binary_version": "6.0.4+ds-1build1"
},
{
"binary_name": "python3-pyassimp",
"binary_version": "6.0.4+ds-1build1"
}
]
}
}
],
"modified": "2026-10-17T12:57:01.789723978Z",
"provider": "osv",
"upstream": [
"CVE-2025-2152"
],
"references": [
"https://ubuntu.com/security/CVE-2025-2152",
"https://www.cve.org/CVERecord?id=CVE-2025-2152",
"https://github.com/assimp/assimp/issues/6027#issue-2877629241",
"https://vuldb.com/?ctiid.299063",
"https://vuldb.com/?id.299063",
"https://vuldb.com/?submit.510818"
]
},
"related_cves": [
{
"value": "CVE-2025-2152",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/1/score"
},
"source_id": "core-osv",
"document_id": 356660,
"published_at": "2025-03-10T14:15:00+00:00"
}