Checkpoint loading flaw in NVIDIA Megatron-LM allows code execution
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-502.
Summary
NVIDIA Megatron-LM from 0 to 16.9 contains a deserialization flaw in checkpoint loading (CWE-502), where untrusted data is deserialized. An attacker who convinces a user to load a maliciously crafted file can execute code, escalate privileges, disclose information and tamper with data.
Written with Claude Haiku 5.5 from the sources below · 2026-10-27
Description from the CNA
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
The sources list no fixed version for NVIDIA Megatron-LM.
Written with Claude Haiku 5.5 from the sources below · 2026-10-27
Timeline
- 2026-10-13 Threatist record created from CVE-2026-65180
- 2026-10-13 Alias added: GHSA-42r9-xwp2-pv6v
References
More NVIDIA vulnerabilities
- TI-2017-10594 Heap-based buffer overflow in dnsmasq before 2.78 allows remote attackers to cause a… CVSS 3.1CRITICAL 9.8
- TI-2025-17134 Time-of-check time-of-use race condition in NVIDIA Container Toolkit CVSS 3.1HIGH 8.3
- TI-2024-00121 Time-of-check time-of-use race condition in NVIDIA Container Toolkit CVSS 3.1CRITICAL 9.0
- TI-2024-00076 NVIDIA Triton Inference Server for Linux contains a vulnerability where a user can set… CVSS 3.1CRITICAL 9.0
- TI-2018-02664 Observable discrepancy in Intel Multiple CVSS 3.1MEDIUM 5.5
- TI-2023-23747 PVRIC (PowerVR Image Compression) on Imagination 2018 and later GPU devices offers… CVSS 3.1MEDIUM 5.3
Sources
- CVE-2026-65180 · CVE Program
- CVE-2026-65180 · NVD
- FIRST EPSS
- GHSA-42r9-xwp2-pv6v · GitHub Advisory Database · CC BY 4.0
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