EUVD-2026-56475
GHSA-m3v8-prpj-cjgp
Severity by source
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
AT:P prerequisite (AMT must be provisioned and reachable) maps to AC:H; impact is availability-only DoS with no confidentiality or integrity consequence.
Primary rating from Vendor (intel).
CVSS VectorVendor: intel
Lifecycle Timeline
2DescriptionCVE.org
Improper input validation in some firmware for some Intel(R) Active Management Technology (Intel(R) AMT) and some Intel(R) Standard Manageability may allow a denial of service. Network adversary with an unauthenticated user combined with a low complexity attack may enable denial of service. This result may potentially occur via network access when attack requirements are present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (none), integrity (none) and availability (high) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts.
AnalysisAI
Denial of service via improper input validation in Intel Active Management Technology (AMT) and Intel Standard Manageability firmware allows unauthenticated network-adjacent attackers to disrupt the out-of-band management interface. The CVSS 4.0 AT:P designation confirms that specific prerequisites - namely AMT being provisioned and network-accessible - must independently exist before exploitation is possible. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires two independently present conditions confirmed by the CVSS 4.0 AT:P metric: Intel AMT must be actively provisioned (not merely present in hardware - unprovisioned AMT does not expose the vulnerable network interface), and the AMT management ports must be reachable by the attacker over the network. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 score of 8.2 reflects a network-accessible, unauthenticated, low-complexity attack with high availability impact, which on the surface appears severe. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | The primary remediation is to apply the firmware update detailed in Intel Security Advisory INTEL-SA-01427 (https://intel.com/content/www/us/en/security-center/advisory/intel-sa-01427.html). … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: Inventory all Intel AMT and Standard Manageability firmware deployments; document which systems are provisioned and network-accessible. …
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Same weakness CWE-20 – Improper Input Validation
View allSame technique Denial Of Service
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External POC / Exploit Code
Leaving vuln.today