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AMD Compressonator SDK EUVDEUVD-2026-115876

| CVE-2026-40659 MEDIUM
Integer Overflow or Wraparound (CWE-190)
2026-11-03 psirt@amd.com GHSA-hgmv-p82r-p566
5.1
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 or file delivery path
  2. Exploit
    Supply crafted DDS file to Compressonator SDK
  3. Execution
    Trigger integer overflow during DDS parsing
  4. Impact
    Crash application causing denial of service

Vulnerability Assessment

Weakness
CWE
ASVS 5.0
V15 - Secure Coding and Architecture Integer overflow checks
MITRE ATT&CK

1 technique across 1 tactic: Execution

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

Exploitation Conditions

Requires local access to the host and that the AMD Compressonator SDK (or an application built on it) parse an attacker-supplied, specially crafted DDS file; the CVSS 4.0 vector indicates low privileges (PR:L) and passive user interaction (UI:P), meaning a local user or process must actually load/process the malicious file rather than it executing automatically. Exploitation is limited to denial of service - there is no confidentiality or integrity impact (VC:N/VI:N) - and the attack surface is confined to workflows that ingest untrusted DDS files through this SDK, which constrains realistic exposure. No network vector exists (AV:L).

Impact

This is a medium-severity, availability-only issue, not a high-priority emergency. The vendor CVSS 4.0 vector (AV:L/AC:L/AT:N/PR:L/UI:P, VC:N/VI:N/VA:H) describes a locally-triggered denial of service that requires low privileges on the host and passive user interaction (a user must process the malicious file); confidentiality and integrity are explicitly unaffected. No EPSS score, KEV listing, or PoC/exploit reference is present in the supplied intelligence, so exploitation probability signals are absent rather than low. The vuln.today decision label is 'this_month' (routine patch-cycle priority), which is consistent with a local DoS against a developer-facing SDK. Taken together the signals are coherent and point to limited real-world risk: no network exposure, no code execution, and no evidence of exploitation. The main open question is deployment context - the impact is confined to any application or pipeline that parses untrusted DDS files through the Compressonator SDK.

Exploit ScenarioDerived

An attacker who can place a file where a Compressonator-based tool or pipeline will process it supplies a specially crafted DirectDraw Surface (DDS) file; when a local user or process loads it, an integer overflow (CWE-190) is triggered and the parsing application crashes, causing denial of service. No public exploit code is identified in the available data, and the exact overflow trigger is not described in the sources. Exploitation requires local access and that a user actually process the malicious file (UI:P).

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

Denial of service in the AMD Compressonator SDK affects applications that parse untrusted DirectDraw Surface (DDS) files, where an integer overflow can crash or hang the consuming process when a local attacker supplies a crafted file. The CVSS 4.0 vector (AV:L/AC:L/PR:L/UI:P/VA:H, with VC:N and VI:N) means a local user or process with low privileges must actually load or process the malicious asset; there is no confidentiality or integrity impact and no network vector. No public exploit code or CISA KEV entry is identified in the available data, and the vendor bulletin AMD-SB-6032 is the primary reference; the vuln.today decision label is this_month, consistent with a medium-severity, availability-only issue rather than an emergency.

RemediationAI

The provided data does not include a fixed version or an explicit patch statement, so the authoritative source for updates and version guidance is AMD security bulletin AMD-SB-6032 (https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-6032.html); apply the vendor-supplied SDK update once the advisory identifies the corrected release. Because exposure is limited to workflows that ingest untrusted DDS files through this SDK, the practical mitigation is to avoid parsing DDS content from untrusted or unverified sources with Compressonator-based tooling, or to perform such processing in a low-privilege, isolated process so that a crash or hang affects only the parsing context; this reduces availability impact but does not address the underlying integer overflow, and it constrains functionality for legitimate but untrusted texture inputs.

Affected VersionsENISA

AMD Compressionator SDK patch: AMD Compressonator SDK 4.6

Affects your stack

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

Technical ContextAI · show details

CWE-190 (Integer Overflow or Wraparound) in the AMD Compressonator SDK is triggered while processing a specially crafted DirectDraw Surface (DDS) file, a container format commonly used to store texture and image data. The available sources state only that an integer overflow condition leads to denial of service; the precise arithmetic path, the field or size calculation that overflows, and the resulting failure mode (for example undersized allocation versus out-of-bounds access) are not described in the supplied evidence. No CPE strings were provided, so exact affected builds cannot be enumerated from the input, and the CVSS 4.0 vector indicates local attack (AV:L), low privileges (PR:L), and passive user interaction (UI:P), with high availability impact only (VA:H, VC:N, VI:N). The independent assessment maps this to CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H. Realistic exposure is confined to workflows in which the SDK or an application built on it ingests DDS files from untrusted sources.

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Severity by source

Vendor (amd) PRIMARY 5.1 MEDIUM
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
vuln.today AI 5.0 MEDIUM

Local supply of a crafted DDS file (AV:L) that a privileged local user must process (PR:L/UI:R), causing only a crash, so C:N/I:N and A:H.

3.1 AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H
4.0 AV:L/AC:L/AT:N/PR:L/UI:P/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
Low
User Interaction
Passive
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

An integer overflow condition in the AMD Compressonator SDK could allow an attacker with local access to supply a specially crafted DirectDraw Surface (DDS) file, potentially resulting in denial of service (DoS).

Threat Intelligence Overview

Prevalence
Low
developer texture-compression SDK, limited to graphics/game-dev tooling
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

26
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +26
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Integer overflow occurs when an arithmetic operation produces a result that exceeds the maximum value a given integer type can store.

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

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