CVE-2026-24150

Code execution via unsafe checkpoint deserialization

Published Mar 24, 2026 · Updated Mar 24, 2026

Deserialization in NVIDIA Megatron-LM before 0.15.3 allows context-dependent attackers to execute code through a malicious checkpoint file. Checkpoint loading permits unsafe PyTorch object deserialization rather than restricting serialized content to tensor weights. Execution requires a user to load the file, after which injected code runs with that user's privileges and can read or alter accessible data.

CVSS severity7.8
High
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Deserialization in NVIDIA Megatron-LM before 0.15.3 allows context-dependent attackers to execute code through a malicious checkpoint file. Checkpoint loading permits unsafe PyTorch object deserialization rather than restricting serialized content to tensor weights. Execution requires a user to load the file, after which injected code runs with that user's privileges and can read or alter accessible data.

The record

CVE
CVE-2026-24150
Published
Mar 24, 2026
Updated
Mar 24, 2026
Vendor
DPDK Project
Product
Megatron-LM
Classifications
CWE-502, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 24, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 24, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=All versions prior to 0.15.3

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

DPDK Project · Megatron-LMversion=All versions prior to 0.15.3

Published CVSS scores

7.8NVIDIA CorporationCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-502Deserialization of Untrusted Data
T1204.002Malicious File

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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