CVE-2026-19999

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.27% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 18.9% of scored records. A rank, not a probability.

NVD base score

2.1 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

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/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

NVD analysis status

Deferred. NVD last modified this record on 2026-08-20.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-08-17 07:30Z2 MO AGO

Last updated

2026-08-19 14:10Z2 MO AGO

Reserved

2026-08-16

Assigning CNA

VulDB

Record state

PUBLISHED

Severity

Medium (CVSS 5.3)

CNA CVSS vector

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/E:P

Weaknesses

• CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferClass
• CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')Base

Data version

5.2

Document digest

af2549ce51ec9c2c4106d96b6e81a5d86e5b730810682e764609acf5f16245f9

• vuldb.comVDB-391200 | Open Asset Import Library Assimp 3DGS MDL7 Bone Transformation Key MDLLoader.cpp ParseBoneTrafoKeys_3DGS_MDL7 buffer overflowhttps://vuldb.com/vuln/391200vdb-entrytechnical-description
• vuldb.comVDB-391200 | CTI Indicators (IOB, IOC, IOA)https://vuldb.com/vuln/391200/ctisignaturepermissions-required
• vuldb.comCVE-2026-19999 | CVE Analysis and Reporthttps://vuldb.com/cve/CVE-2026-19999third-party-advisory
• vuldb.comSubmit #873132 | Assimp commit 17c12da Heap-based Buffer Overflowhttps://vuldb.com/submit/873132third-party-advisory
• github.comhttps://github.com/assimp/assimp/issues/6633issue-tracking
• github.comhttps://github.com/assimp/assimp/pull/6759issue-trackingpatch
• github.comhttps://github.com/user-attachments/files/27429337/poc.zipexploit
• github.comhttps://github.com/assimp/assimp/commit/50d767984e78d51b53e2020fdf0967fd624bc377patch