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AMD amdgpu driver EUVDEUVD-2026-115875

| CVE-2026-43603 MEDIUM
NULL Pointer Dereference (CWE-476)
2026-11-03 psirt@amd.com GHSA-69qw-r4j5-2ffj
6.9
CVSS 4.0 · Vendor: amd
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Obtain local access to host
  2. Exploit
    Reach AMD GPU driver code path
  3. Execution
    Trigger NULL pointer dereference
  4. Impact
    Kernel crash and denial of service

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A10:2025 - Mishandling of Exceptional Conditions
ASVS 5.0
V16 - Security Logging and Error Handling Null pointer safety, defensive checks
MITRE ATT&CK

1 technique across 1 tactic: Impact

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Exploitation Conditions

Exploitation requires local access to the affected system and the ability to reach the vulnerable AMD GPU (amdgpu) Linux kernel driver code path - typically interaction with the DRM/GPU device interface. The CVSS vector (AV:L) confirms this is local, not remote, which is the primary limiting factor. The exact feature, ioctl, or configuration that triggers the NULL pointer dereference is not described in the available sources, so it cannot be stated which operation or deployment mode is required. Impact is limited to availability (kernel crash / denial of service); there is no confidentiality or integrity impact per the vector.

Impact

This is a moderate-severity, availability-only issue, not a high-priority emergency. The CVSS 4.0 vector (AV:L/AC:L/AT:N/PR:N/UI:N) scores 6.9 and indicates a local attack vector with low complexity and no privileges or user interaction, impacting only availability (VA:H) with no confidentiality or integrity effect (VC:N/VI:N) - consistent with a CWE-476 NULL pointer dereference that crashes the kernel (denial of service). The vuln.today decision label is 'this_month,' signaling it should be remediated in a routine patch cycle rather than immediately. There is no CISA KEV listing, no EPSS score supplied, and no public exploit identified at time of analysis, so there is no evidence of active or widespread exploitation. The PR:N rating means no authentication is required at the CVSS level, but the local (AV:L) vector inherently requires the attacker to already have a local foothold and the ability to reach the GPU driver code path, which substantially limits real-world risk versus a remote flaw. One signal to verify: PR:N implies any local user can trigger it, but reaching the AMD GPU driver in practice generally requires access to the DRM/render device interface - confirm whether your deployment grants unprivileged users that access.

Exploit ScenarioDerived

A local attacker with the ability to interact with the AMD GPU driver interface triggers the vulnerable code path, causing a NULL pointer dereference that panics the kernel and crashes the host. The result is a denial of service (system reboot/hang) affecting all users of that machine. No public exploit is identified, and the specific trigger is not described in the available sources.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet

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AnalysisAIv1 – Nov 03, 2026

Crashing the Linux kernel is possible through a NULL pointer dereference in AMD's amdgpu GPU driver, giving local users a denial-of-service primitive on affected systems. The CVSS 4.0 vector shows local access (AV:L), no privileges (PR:N), no user interaction, and high availability impact only; confidentiality and integrity are unaffected. No public exploit or CISA KEV designation was identified in the supplied intelligence, and the priority is this_month rather than emergency.

RemediationAI

No vendor-released patch was identified at time of analysis; AMD-SB-6034 (https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-6034.html) is the reference to confirm the fixed kernel/driver version and apply it when published. Because exploitation requires local access and reaching the amdgpu driver path, compensating controls are to restrict local/interactive access on systems that load amdgpu to trusted users, prevent untrusted workloads or containers from opening /dev/dri/card* and /dev/dri/renderD* device nodes, or blacklist/unbind amdgpu where GPU functionality is not required; these reduce exposure but do not fix the flaw, and the device-node and driver restrictions remove GPU acceleration for the affected workloads.

Affected VersionsENISA

AMD Ryzen™ 7020 Series Processors with Radeon™ Graphics patch: Radeon Software for Linux 26.13
AMD Ryzen™ 6000 Series Processors with Radeon™ Graphics patch: Radeon Software for Linux 26.13
AMD Instinct™ MI355X patch: Linux GPU Driver 31.40
AMD Ryzen™ AI Max 300 Series Processors patch: Radeon Software for Linux 26.13
AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics patch: Radeon Software for Linux 26.13
AMD Ryzen™ 4000 Series Desktop Processors patch: Radeon Software for Linux 26.13
AMD Ryzen™ 4000 Series Mobile Processors with Radeon™ Graphics patch: Radeon Software for Linux 26.13
AMD Ryzen™ 7000 Series Desktop Processors patch: Radeon Software for Linux 26.13
AMD Radeon™ RX 5000 Series Graphics Products patch: Radeon Software for Linux 26.13
AMD Instinct™ MI300A patch: Linux GPU Driver 31.40
AMD Instinct™ MI250 patch: Linux GPU Driver 31.40
AMD Radeon™ PRO W5000 Series Graphics Products patch: Radeon Software for Linux 26.13
AMD Ryzen™ 8000 Series Desktop Processors patch: Radeon Software for Linux 26.13
AMD Radeon™ PRO V710 patch: Contact your AMD Customer Engineering representative
AMD Ryzen™ 8040 Series Mobile Processors with Radeon™ Graphics patch: Radeon Software for Linux 26.13
AMD Instinct™ MI308X patch: Linux GPU Driver 31.40
AMD Instinct™ MI300X patch: Linux GPU Driver 31.40
AMD Ryzen™ 9000HX Series Processors patch: Radeon Software for Linux 26.13
AMD Radeon™ RX 7000 Series Graphics Products patch: Radeon Software for Linux 26.13
AMD Ryzen™ AI 300 Series Processors patch: Radeon Software for Linux 26.13
AMD Ryzen™ 9000 Series Desktop Processors patch: Radeon Software for Linux 26.13
AMD Ryzen™ 7030 Series Mobile Processors with Radeon™ Graphics patch: Radeon Software for Linux 26.13
AMD Ryzen™ AI 400 Series Processors patch: Radeon Software for Linux 26.13
AMD Instinct™ MI250X patch: Linux GPU Driver 31.40
AMD Radeon™ PRO W6000 Series Graphics Products patch: Radeon Software for Linux 26.13
AMD Ryzen™ 5000 Series Desktop Processors with Radeon™ Graphics patch: Radeon Software for Linux 26.13
AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics patch: Radeon Software for Linux 26.13
AMD EPYC™ 4005 Series Processors patch: Radeon Software for Linux 26.13
AMD Ryzen™ AI Max 400 Series Processors patch: Radeon Software for Linux 26.13
AMD Radeon™ RX 6000 Series Graphics Products patch: Radeon Software for Linux 26.13
AMD EPYC™ 4004 Series Processors patch: Radeon Software for Linux 26.13
AMD Instinct™ MI350X patch: Linux GPU Driver 31.40
AMD Instinct™ MI210 patch: Linux GPU Driver 31.40
AMD Instinct™ MI325X patch: Linux GPU Driver 31.40
AMD Ryzen™ 7040 Series Mobile Processors with Radeon™ Graphics patch: Radeon Software for Linux 26.13
AMD Radeon™ AI PRO R9000 Series Graphics Products patch: Radeon Software for Linux 26.13
AMD Radeon™ RX 9000 Series Graphics Products patch: Radeon Software for Linux 26.13
AMD Radeon™ PRO V620 patch: Contact your AMD Customer Engineering representative
AMD Ryzen™ 7035 Series Processors with Radeon™ Graphics patch: Radeon Software for Linux 26.13
AMD Ryzen™ 7045 Series Mobile Processors with Radeon™ Graphics patch: Radeon Software for Linux 26.13
AMD Radeon™ PRO W7000 Series Graphics Products patch: Radeon Software for Linux 26.13

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

The flaw is a CWE-476 NULL pointer dereference in the Linux kernel's AMD GPU driver (amdgpu), a kernel-mode graphics driver that exposes DRM/GPU interfaces to user space. The supplied vector is local (AV:L), low complexity, no privileges, no user interaction, with only availability impact, so a successful trigger can crash the kernel and cause denial of service. The exact ioctl, feature, or configuration that reaches the faulty pointer is not described in the available sources, and no CPE strings or kernel version ranges were supplied; the AMD PSIRT report points to AMD-SB-6034 for product details.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (amd) PRIMARY 6.9 MEDIUM
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
vuln.today AI 6.2 MEDIUM

Local vector (AV:L) because GPU driver code is reached from a local context; PR:N and AC:L mirror the vendor assessment; impact is availability-only (A:H) with no C/I effect.

3.1 AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
4.0 AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Primary rating from Vendor (amd).

CVSS VectorVendor: amd

Attack Vector
Local
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
None
Vulnerable system: Confidentiality
None
Vulnerable system: Integrity
None
Vulnerable system: Availability
High
Subsequent system: Confidentiality
None
Subsequent system: Integrity
None
Subsequent system: Availability
None

DescriptionCVE.org

A NULL pointer dereference in the Linux GPU driver could potentially lead to a kernel crash and result in denial of service.

Threat Intelligence Overview

Prevalence
High
AMD GPU (amdgpu) driver ships in mainline Linux kernel; broad desktop and datacenter footprint
Social Media
1
Sightings
Data Quality
3 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS N/A
Patch available No
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Defer
Exploitation
None
System Exposure· derived
Small
Automatable
No
Human Impact· derived
Medium
Technical Impact
Partial

Priority Score

34
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +34
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

A null pointer dereference occurs when a program attempts to access memory through a pointer that has been set to NULL (address 0x0).

Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.

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