CVE-2025-23338

Denial of service via symbol-table index misvalidation

Published Sep 24, 2025 · Updated Sep 24, 2025

Out-of-bounds write in nvdisasm in NVIDIA CUDA Toolkit before 13.0 allows local users to crash the tool with a malicious ELF file. The symbol-table parser derives an unchecked index from ELF st_value and st_size fields, then writes a file-controlled pointer eight bytes past a 0xa0-byte heap buffer. A user must run nvdisasm on the crafted file; NVIDIA limits the reported consequence to denial of service despite Talos identifying code-execution potential.

CVSS severity3.3
Low
EPSS probability0.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds write in nvdisasm in NVIDIA CUDA Toolkit before 13.0 allows local users to crash the tool with a malicious ELF file. The symbol-table parser derives an unchecked index from ELF st_value and st_size fields, then writes a file-controlled pointer eight bytes past a 0xa0-byte heap buffer. A user must run nvdisasm on the crafted file; NVIDIA limits the reported consequence to denial of service despite Talos identifying code-execution potential.

The record

CVE
CVE-2025-23338
Published
Sep 24, 2025
Updated
Sep 24, 2025
Vendor
DPDK Project
Product
NVIDIA CUDA Toolkit
Classifications
CWE-129, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 24, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 24, 2025Record 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 CUDA Toolkit 13.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

DPDK Project · NVIDIA CUDA Toolkitversion=All versions prior to CUDA Toolkit 13.0

Published CVSS scores

7.8Cisco TalosCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
3.3NVIDIACVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-129Improper Validation of Array Index
T1204.002Malicious File

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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