High

Unsafe deserialization in NVIDIA Model Optimizer ONNX quantization

IdentifiersCVE-2026-24141CWE-502· Deserialization of Untrusted Data

CVE-2026-24141 is a vulnerability in NVIDIA Model Optimizer for Windows and Linux affecting the ONNX quantization feature. The issue is described as unsafe deserialization triggered when a user supplies a specially crafted input file to the quantization workflow. Because deserialization of untrusted data occurs in this feature, an attacker may be able to cause unintended object reconstruction or execution of attacker-controlled logic during processing of the malicious file.

For your environment

Are you exposed to this one?

Mallory correlates every CVE against your assets, your vendors, and active adversary campaigns. Know which vulnerabilities matter for you, not just which ones are loud.

Start free trial

ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

A successful exploit may lead to code execution, privilege escalation, data tampering, and information disclosure. In practical terms, exploitation could allow an attacker to execute arbitrary code in the security context of the Model Optimizer process, modify processed data or model artifacts, and access sensitive information available to that process or host.

Mitigation

If you can’t patch tonight, do this now.

Until patches can be applied, avoid processing untrusted or externally supplied ONNX input files with the Model Optimizer quantization feature. Restrict access to systems running Model Optimizer, isolate model-processing workflows, run the software with least privilege, and use file provenance validation and sandboxing for model conversion or quantization pipelines handling third-party content.

Remediation

Patch, then assume compromise.

Apply the NVIDIA security update for Model Optimizer referenced in NVIDIA's March 2026 security advisories. Upgrade to a vendor-fixed release of NVIDIA Model Optimizer for the affected Windows and Linux platforms as provided by NVIDIA PSIRT.

PUBLIC EXPLOITS

Exploits

No public exploits tracked yet. Mallory keeps watching.

VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

EXPOSURE SURFACE

Affected products & vendors

Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.

VendorProductType

NvidiaModel Optimizerapplication

Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.

ACTIVITY FEED

Recent activity

4 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.

4 SOURCESView more in app

cyber security newsNews

Mar 27, 2026

Critical NVIDIA Vulnerabilities Enables RCE and DoS Attacks

A high-severity vulnerability affecting NVIDIA Model Optimizer.

What this page doesn’t show

The version that knows your environment.

This page is what’s public. Mallory adds the parts that aren’t: which of your assets are affected, which adversaries are exploiting it right now, which detections to deploy, and what to do tonight.

Start free trial

Exposure mapping

Query your assets running an affected version, and investigate the blast radius.

Threat actor evidence

Every observed campaign linking this CVE to a named adversary.

Associated malware

Malware families riding this exploit, with evidence and IOCs.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity3