CVE-2026-20901
Summary
| CVE | CVE-2026-20901 |
|---|---|
| State | PUBLISHED |
| Assigner | intel |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-08-11 18:17:24 UTC |
| Updated | 2026-08-28 14:08:04 UTC |
| Description | Improper input validation for some Intel(R) Xeon(R) processors within firmware may allow an escalation of privilege. Startup code and smm adversary with a privileged user combined with a high complexity attack may enable data alteration. This result may potentially occur via local 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 (none) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (high) and availability (none) impacts. |
Risk And Classification
Primary CVSS: v4.0 4 MEDIUM from [email protected]
CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:N/VC:N/VI:N/VA:N/SC:N/SI:H/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
EPSS: 0.001010000 probability, percentile 0.010450000 (date 2026-08-14)
Problem Types: CWE-20 | Escalation of Privilege | CWE-20 Improper Input Validation
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 4.0 | [email protected] | Secondary | 4 | MEDIUM | CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:N/VC:N/VI:N/VA:N/SC:N/SI:H/SA:N/E:X/C... |
| 4.0 | CNA | CVSS | 4 | MEDIUM | CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:N/VC:N/VI:N/VA:N/SC:N/SI:H/SA:N |
| 3.1 | [email protected] | Primary | 5.3 | MEDIUM | CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:H/A:N |
CVSS v4.0 Breakdown
Attack Vector
LocalAttack Complexity
HighAttack Requirements
PresentPrivileges Required
HighUser Interaction
NoneConfidentiality
NoneIntegrity
NoneAvailability
NoneSub Conf.
NoneSub Integrity
HighSub Availability
NoneCVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:N/VC:N/VI:N/VA:N/SC:N/SI:H/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
CVSS v3.1 Breakdown
Attack Vector
LocalAttack Complexity
HighPrivileges Required
HighUser Interaction
NoneScope
ChangedConfidentiality
NoneIntegrity
HighAvailability
NoneCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:H/A:N
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Hardware | Intel | Xeon Bronze 3408u | - | All | All | All |
| Operating System | Intel | Xeon Bronze 3408u Firmware | - | All | All | All |
| Hardware | Intel | Xeon Gold 5403n | - | All | All | All |
| Operating System | Intel | Xeon Gold 5403n Firmware | - | All | All | All |
| Hardware | Intel | Xeon Gold 5411n | - | All | All | All |
| Operating System | Intel | Xeon Gold 5411n Firmware | - | All | All | All |
| Hardware | Intel | Xeon Gold 5412u | - | All | All | All |
| Operating System | Intel | Xeon Gold 5412u Firmware | - | All | All | All |
| Hardware | Intel | Xeon Gold 5415 | - | All | All | All |
| Operating System | Intel | Xeon Gold 5415 Firmware | - | All | All | All |
| Hardware | Intel | Xeon Gold 5416s | - | All | All | All |
| Operating System | Intel | Xeon Gold 5416s Firmware | - | All | All | All |
| Hardware | Intel | Xeon Gold 5418n | - | All | All | All |
| Operating System | Intel | Xeon Gold 5418n Firmware | - | All | All | All |
| Hardware | Intel | Xeon Gold 5418y | - | All | All | All |
| Operating System | Intel | Xeon Gold 5418y Firmware | - | All | All | All |
| Hardware | Intel | Xeon Gold 5420 | - | All | All | All |
| Operating System | Intel | Xeon Gold 5420 Firmware | - | All | All | All |
| Hardware | Intel | Xeon Gold 5423n | - | All | All | All |
| Operating System | Intel | Xeon Gold 5423n Firmware | - | All | All | All |
| Hardware | Intel | Xeon Gold 5433n | - | All | All | All |
| Operating System | Intel | Xeon Gold 5433n Firmware | - | All | All | All |
| Hardware | Intel | Xeon Gold 6403n | - | All | All | All |
| Operating System | Intel | Xeon Gold 6403n Firmware | - | All | All | All |
| Hardware | Intel | Xeon Gold 6414u | - | All | All | All |
| Operating System | Intel | Xeon Gold 6414u Firmware | - | All | All | All |
| Hardware | Intel | Xeon Gold 6416h | - | All | All | All |
| Operating System | Intel | Xeon Gold 6416h Firmware | - | All | All | All |
| Hardware | Intel | Xeon Gold 6418h | - | All | All | All |
| Operating System | Intel | Xeon Gold 6418h Firmware | - | All | All | All |
| Hardware | Intel | Xeon Gold 6421n | - | All | All | All |
| Operating System | Intel | Xeon Gold 6421n Firmware | - | All | All | All |
| Hardware | Intel | Xeon Gold 6423n | - | All | All | All |
| Operating System | Intel | Xeon Gold 6423n Firmware | - | All | All | All |
| Hardware | Intel | Xeon Gold 6426y | - | All | All | All |
| Operating System | Intel | Xeon Gold 6426y Firmware | - | All | All | All |
| Hardware | Intel | Xeon Gold 6428n | - | All | All | All |
| Operating System | Intel | Xeon Gold 6428n Firmware | - | All | All | All |
| Hardware | Intel | Xeon Gold 6430 | - | All | All | All |
| Operating System | Intel | Xeon Gold 6430 Firmware | - | All | All | All |
| Hardware | Intel | Xeon Gold 6433n | - | All | All | All |
| Hardware | Intel | Xeon Gold 6433ne | - | All | All | All |
| Operating System | Intel | Xeon Gold 6433ne Firmware | - | All | All | All |
| Operating System | Intel | Xeon Gold 6433n Firmware | - | All | All | All |
| Hardware | Intel | Xeon Gold 6434 | - | All | All | All |
| Hardware | Intel | Xeon Gold 6434h | - | All | All | All |
| Operating System | Intel | Xeon Gold 6434h Firmware | - | All | All | All |
| Operating System | Intel | Xeon Gold 6434 Firmware | - | All | All | All |
| Hardware | Intel | Xeon Gold 6438m | - | All | All | All |
| Operating System | Intel | Xeon Gold 6438m Firmware | - | All | All | All |
| Hardware | Intel | Xeon Gold 6438n | - | All | All | All |
| Operating System | Intel | Xeon Gold 6438n Firmware | - | All | All | All |
| Hardware | Intel | Xeon Gold 6438y | - | All | All | All |
| Operating System | Intel | Xeon Gold 6438y Firmware | - | All | All | All |
| Hardware | Intel | Xeon Gold 6442y | - | All | All | All |
| Operating System | Intel | Xeon Gold 6442y Firmware | - | All | All | All |
| Hardware | Intel | Xeon Gold 6443n | - | All | All | All |
| Operating System | Intel | Xeon Gold 6443n Firmware | - | All | All | All |
| Hardware | Intel | Xeon Gold 6444y | - | All | All | All |
| Operating System | Intel | Xeon Gold 6444y Firmware | - | All | All | All |
| Hardware | Intel | Xeon Gold 6448h | - | All | All | All |
| Operating System | Intel | Xeon Gold 6448h Firmware | - | All | All | All |
| Hardware | Intel | Xeon Gold 6448y | - | All | All | All |
| Operating System | Intel | Xeon Gold 6448y Firmware | - | All | All | All |
| Hardware | Intel | Xeon Gold 6454s | - | All | All | All |
| Operating System | Intel | Xeon Gold 6454s Firmware | - | All | All | All |
| Hardware | Intel | Xeon Gold 6458q | - | All | All | All |
| Operating System | Intel | Xeon Gold 6458q Firmware | - | All | All | All |
| Hardware | Intel | Xeon Platinum 8444h | - | All | All | All |
| Operating System | Intel | Xeon Platinum 8444h Firmware | - | All | All | All |
| Hardware | Intel | Xeon Platinum 8450h | - | All | All | All |
| Operating System | Intel | Xeon Platinum 8450h Firmware | - | All | All | All |
| Hardware | Intel | Xeon Platinum 8452y | - | All | All | All |
| Operating System | Intel | Xeon Platinum 8452y Firmware | - | All | All | All |
| Hardware | Intel | Xeon Platinum 8454h | - | All | All | All |
| Operating System | Intel | Xeon Platinum 8454h Firmware | - | All | All | All |
| Hardware | Intel | Xeon Platinum 8458p | - | All | All | All |
| Operating System | Intel | Xeon Platinum 8458p Firmware | - | All | All | All |
| Hardware | Intel | Xeon Platinum 8460h | - | All | All | All |
| Operating System | Intel | Xeon Platinum 8460h Firmware | - | All | All | All |
| Hardware | Intel | Xeon Platinum 8460y | - | All | All | All |
| Operating System | Intel | Xeon Platinum 8460y Firmware | - | All | All | All |
| Hardware | Intel | Xeon Platinum 8461v | - | All | All | All |
| Operating System | Intel | Xeon Platinum 8461v Firmware | - | All | All | All |
| Hardware | Intel | Xeon Platinum 8462y | - | All | All | All |
| Operating System | Intel | Xeon Platinum 8462y Firmware | - | All | All | All |
| Hardware | Intel | Xeon Platinum 8468 | - | All | All | All |
| Hardware | Intel | Xeon Platinum 8468h | - | All | All | All |
| Operating System | Intel | Xeon Platinum 8468h Firmware | - | All | All | All |
| Hardware | Intel | Xeon Platinum 8468v | - | All | All | All |
| Operating System | Intel | Xeon Platinum 8468v Firmware | - | All | All | All |
| Operating System | Intel | Xeon Platinum 8468 Firmware | - | All | All | All |
| Hardware | Intel | Xeon Platinum 8470 | - | All | All | All |
| Hardware | Intel | Xeon Platinum 8470n | - | All | All | All |
| Operating System | Intel | Xeon Platinum 8470n Firmware | - | All | All | All |
| Hardware | Intel | Xeon Platinum 8470q | - | All | All | All |
| Operating System | Intel | Xeon Platinum 8470q Firmware | - | All | All | All |
| Operating System | Intel | Xeon Platinum 8470 Firmware | - | All | All | All |
| Hardware | Intel | Xeon Platinum 8471n | - | All | All | All |
| Operating System | Intel | Xeon Platinum 8471n Firmware | - | All | All | All |
| Hardware | Intel | Xeon Platinum 8480 | - | All | All | All |
| Operating System | Intel | Xeon Platinum 8480 Firmware | - | All | All | All |
| Hardware | Intel | Xeon Platinum 8490h | - | All | All | All |
| Operating System | Intel | Xeon Platinum 8490h Firmware | - | All | All | All |
| Hardware | Intel | Xeon Platinum 8592v | - | All | All | All |
| Operating System | Intel | Xeon Platinum 8592v Firmware | - | All | All | All |
| Hardware | Intel | Xeon Platinum 8592 | - | All | All | All |
| Operating System | Intel | Xeon Platinum 8592 Firmware | - | All | All | All |
| Hardware | Intel | Xeon Platinum 8593q | - | All | All | All |
| Operating System | Intel | Xeon Platinum 8593q Firmware | - | All | All | All |
| Hardware | Intel | Xeon Silver 4410t | - | All | All | All |
| Operating System | Intel | Xeon Silver 4410t Firmware | - | All | All | All |
| Hardware | Intel | Xeon Silver 4410y | - | All | All | All |
| Operating System | Intel | Xeon Silver 4410y Firmware | - | All | All | All |
| Hardware | Intel | Xeon Silver 4416 | - | All | All | All |
| Operating System | Intel | Xeon Silver 4416 Firmware | - | All | All | All |
| Hardware | Intel | Xeon Silver 4509y | - | All | All | All |
| Operating System | Intel | Xeon Silver 4509y Firmware | - | All | All | All |
| Hardware | Intel | Xeon Silver 4510 | - | All | All | All |
| Hardware | Intel | Xeon Silver 4510t | - | All | All | All |
| Operating System | Intel | Xeon Silver 4510t Firmware | - | All | All | All |
| Operating System | Intel | Xeon Silver 4510 Firmware | - | All | All | All |
| Hardware | Intel | Xeon Silver 4514y | - | All | All | All |
| Operating System | Intel | Xeon Silver 4514y Firmware | - | All | All | All |
| Hardware | Intel | Xeon Silver 4516y | - | All | All | All |
| Operating System | Intel | Xeon Silver 4516y Firmware | - | All | All | All |
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Na | IntelR XeonR Processors | affected See references | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| intel.com/content/www/us/en/security-center/advisory/intel-sa-01442.html | [email protected] | intel.com | Vendor Advisory |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.