CVE-2026-65180

Deserialization of untrusted data in NVIDIA Megatron LM

CVSS score

7.8

EPSS probability

—

Risk score

0.8

Published

7 h ago

Overview Public Exploits (0)Newsroom Vulnerability Timeline

Patch status has not yet been verified

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Impact on My Inventory

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Vulnerability description

CVE AI research

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DayBreach AI Explanation

Verified against sources

CVE-2026-65180: NVIDIA Megatron-LM Vulnerability

Sources read

Source agreement

Tam uyum

Evidence confidence

%55

Short explanation

NVIDIA Megatron-LM contains a high-severity vulnerability in checkpoint loading due to deserialization of untrusted data (S0). An attacker can cause remote code execution by convincing a user to load a maliciously crafted file (S1).

Why does it matter?

A successful exploit of this vulnerability may lead to code execution, escalation of privileges, information disclosure, and data tampering (S0), posing significant security risks.

What should be done?

Monitor official vendor advisories
Avoid loading files from untrusted sources
Await vendor updates as the patch status remains unknown

Chain of evidence and sources2 verified claims

NVIDIA Megatron-LM, kontrol noktası yükleme sırasında güvenilmeyen verilerin seri durumdan çıkarılması nedeniyle RCE zafiyeti barındırmaktadır.

S0 · daybreach-canonical S1 · nvd

Başarılı bir istismar; kod yürütmeye, yetki yükseltilmesine, bilgi ifşasına ve veri kurcalanmasına yol açabilir.

S0 · daybreach-canonical S1 · nvd

Show the technical text from the sources

NVIDIA Megatron-LM contains a vulnerability in checkpoint loading where an Attacker may cause an RCE by convincing a user to load a maliciously crafted file. A successful exploit of this vulnerability may lead to code execution, escalation of privileges, information disclosure, and data tampering.

CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE: CWE-502

Explanation produced with the local gemini-flash-lite-latest model. Numerical metrics and the KEV, patch and exploit statuses are not determined by AI.

IMPACT: Affected Products and Software

Affected Products

The following products are affected by CVE-2026-65180 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.

ID	VENDOR	PRODUCT	ACTION
1	nvidia	Megatron-LM	View

Total affected vendors: 1|Products: 1

RED HAT CSAF/VEX: Product Impact Check

Red Hat has not yet published a CSAF/VEX impact record for this CVE. This does not mean “not affected”.

SCORING: CVSS from Multiple Sources

CVSS Scores

The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.

SCORE	VERSION	SEVERITY	VECTOR	SOURCE
7.8	CVSS V3_1	HIGH	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	CVE CNA
7.8	CVSS V31	HIGH	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	NVD

Patch and Remediation Guide

Solution & Remediation Advisory

Patch status unknown

İncelenen resmî kaynaklarda yama durumu doğrulanamadı. Bu sonuç “yama yok” anlamına gelmez.

Confirm the affected product and version against the source evidence above.

Restrict access to internet-facing services and apply network segmentation.

Until a patch is confirmed, follow the vendor advisory; do not read an unknown status as “no patch”.

Monitor server logs and network endpoints for signs of anomalous execution.

Public exploit and active exploitation status

Verified exploit intelligence

No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.

Weakness Classification and Attack Patterns (CWE & CAPEC)

CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-65180 is associated with the following CWEs:

CWE-502: Deserialization of Untrusted Data

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-65180 weaknesses.

CAPEC-66: SQL Injection CAPEC-126: Path Traversal CAPEC-28: OS Command Injection

Attack Vector and Accessibility

ExposureYerel erişim

PermissionsLow

UserGerekmiyor

Official Sources and Advisories

https://nvd.nist.gov/vuln/detail/CVE-2026-65180vendor-advisory https://www.cve.org/CVERecord?id=CVE-2026-65180vendor-advisory https://github.com/NVIDIA/product-security/tree/main/2026/5881vendor-advisory

CVSS Vector Radar Chart

7.8 / 10

Vulnerability Scoring Details

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow privileges

User InteractionNone required

Confidentiality (Gizlilik)Low

Integrity (Bütünlük)None

Availability (Erişilebilirlik)High

Yama durumu bilinmiyor

İncelenen resmî kaynaklarda yama durumu doğrulanamadı. Bu sonuç “yama yok” anlamına gelmez.

Follow the vendor

nvidia

Weakness Type (CWE & CAPEC)

CWE-502

Similar Vulnerabilities

10.0

CVE-2026-65162

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