CVE-2026-20901
Medium
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.
SeverityMedium
CVSS5.3
Exploit probability—
ProductIntel Xeon Bronze 3408u Firmware
PublishedAug 11, 2026
First seenAug 11, 2026
Weakness typeCWE-20Improper input validation
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| intel xeon_bronze_3408u_firmware | No range specified | — |
| intel xeon_gold_5403n_firmware | No range specified | — |
| intel xeon_gold_5411n_firmware | No range specified | — |
| intel xeon_gold_5412u_firmware | No range specified | — |
| intel xeon_gold_5415\+_firmware | No range specified | — |
| intel xeon_platinum_8592\+_firmware | No range specified | — |
| intel xeon_platinum_8592v_firmware | No range specified | — |
| intel xeon_platinum_8593q_firmware | No range specified | — |
| intel xeon_silver_4509y_firmware | No range specified | — |
| intel xeon_silver_4510_firmware | No range specified | — |
| intel xeon_silver_4510t_firmware | No range specified | — |
| intel xeon_silver_4514y_firmware | No range specified | — |
| intel xeon_silver_4516y\+_firmware | No range specified | — |
| intel xeon_gold_5416s_firmware | No range specified | — |
| intel xeon_gold_5418n_firmware | No range specified | — |
| intel xeon_gold_5418y_firmware | No range specified | — |
| intel xeon_gold_5420\+_firmware | No range specified | — |
| intel xeon_gold_5423n_firmware | No range specified | — |
| intel xeon_gold_5433n_firmware | No range specified | — |
| intel xeon_gold_6403n_firmware | No range specified | — |
| intel xeon_gold_6414u_firmware | No range specified | — |
| intel xeon_gold_6416h_firmware | No range specified | — |
| intel xeon_gold_6418h_firmware | No range specified | — |
| intel xeon_gold_6421n_firmware | No range specified | — |
| intel xeon_gold_6423n_firmware | No range specified | — |
| intel xeon_gold_6426y_firmware | No range specified | — |
| intel xeon_gold_6428n_firmware | No range specified | — |
| intel xeon_gold_6430_firmware | No range specified | — |
| intel xeon_gold_6433n_firmware | No range specified | — |
| intel xeon_gold_6433ne_firmware | No range specified | — |
| intel xeon_gold_6434_firmware | No range specified | — |
| intel xeon_gold_6434h_firmware | No range specified | — |
| intel xeon_gold_6438m_firmware | No range specified | — |
| intel xeon_gold_6438n_firmware | No range specified | — |
| intel xeon_gold_6438y\+_firmware | No range specified | — |
| intel xeon_gold_6442y_firmware | No range specified | — |
| intel xeon_gold_6443n_firmware | No range specified | — |
| intel xeon_gold_6444y_firmware | No range specified | — |
| intel xeon_gold_6448h_firmware | No range specified | — |
| intel xeon_gold_6448y_firmware | No range specified | — |
| intel xeon_gold_6454s_firmware | No range specified | — |
| intel xeon_gold_6458q_firmware | No range specified | — |
| intel xeon_platinum_8444h_firmware | No range specified | — |
| intel xeon_platinum_8450h_firmware | No range specified | — |
| intel xeon_platinum_8452y_firmware | No range specified | — |
| intel xeon_platinum_8454h_firmware | No range specified | — |
| intel xeon_platinum_8458p_firmware | No range specified | — |
| intel xeon_platinum_8460h_firmware | No range specified | — |
| intel xeon_platinum_8460y\+_firmware | No range specified | — |
| intel xeon_platinum_8461v_firmware | No range specified | — |
| intel xeon_platinum_8462y\+_firmware | No range specified | — |
| intel xeon_platinum_8468_firmware | No range specified | — |
| intel xeon_platinum_8468h_firmware | No range specified | — |
| intel xeon_platinum_8468v_firmware | No range specified | — |
| intel xeon_platinum_8470_firmware | No range specified | — |
| intel xeon_platinum_8470n_firmware | No range specified | — |
| intel xeon_platinum_8470q_firmware | No range specified | — |
| intel xeon_platinum_8471n_firmware | No range specified | — |
| intel xeon_platinum_8480\+_firmware | No range specified | — |
| intel xeon_platinum_8490h_firmware | No range specified | — |
| intel xeon_silver_4410t_firmware | No range specified | — |
| intel xeon_silver_4410y_firmware | No range specified | — |
| intel xeon_silver_4416\+_firmware | No range specified | — |
| intel xeon_bronze_3508u_firmware | No range specified | — |
| intel xeon_gold_5512u_firmware | No range specified | — |
| intel xeon_gold_5515\+_firmware | No range specified | — |
| intel xeon_gold_5520\+_firmware | No range specified | — |
| intel xeon_gold_6526y_firmware | No range specified | — |
| intel xeon_gold_6530_firmware | No range specified | — |
| intel xeon_gold_6534_firmware | No range specified | — |
| intel xeon_gold_6538n_firmware | No range specified | — |
| intel xeon_gold_6538y\+_firmware | No range specified | — |
| intel xeon_gold_6542y_firmware | No range specified | — |
| intel xeon_gold_6544y_firmware | No range specified | — |
| intel xeon_gold_6548n_firmware | No range specified | — |
| intel xeon_gold_6548y\+_firmware | No range specified | — |
| intel xeon_gold_6554s_firmware | No range specified | — |
| intel xeon_gold_6558q_firmware | No range specified | — |
| intel xeon_platinum_8558_firmware | No range specified | — |
| intel xeon_platinum_8558p_firmware | No range specified | — |
| intel xeon_platinum_8558u_firmware | No range specified | — |
| intel xeon_platinum_8562y\+_firmware | No range specified | — |
| intel xeon_platinum_8568y\+_firmware | No range specified | — |
| intel xeon_platinum_8570_firmware | No range specified | — |
| intel xeon_platinum_8571n_firmware | No range specified | — |
| intel xeon_platinum_8580_firmware | No range specified | — |
| intel xeon_platinum_8581v_firmware | No range specified | — |
| intel xeon_gold_5420_firmware | No range specified | — |
| intel xeon_gold_5415_firmware | No range specified | — |
| intel xeon_silver_4416_firmware | No range specified | — |
| intel xeon_bronze_3408u | No range specified | — |
| intel xeon_gold_5411n | No range specified | — |
| intel xeon_gold_5412u | No range specified | — |
| intel xeon_gold_5415 | No range specified | — |
| intel xeon_gold_5416s | No range specified | — |
| intel xeon_gold_5418n | No range specified | — |
| intel xeon_gold_5418y | No range specified | — |
| intel xeon_gold_5420 | No range specified | — |
| intel xeon_gold_6414u | No range specified | — |
| intel xeon_gold_6416h | No range specified | — |
| intel xeon_gold_6418h | No range specified | — |
| intel xeon_gold_6421n | No range specified | — |
| intel xeon_gold_6426y | No range specified | — |
| intel xeon_gold_6428n | No range specified | — |
| intel xeon_gold_6430 | No range specified | — |
| intel xeon_gold_6434 | No range specified | — |
| intel xeon_gold_6434h | No range specified | — |
| intel xeon_gold_6438m | No range specified | — |
| intel xeon_gold_6438n | No range specified | — |
| intel xeon_gold_6438y | No range specified | — |
| intel xeon_gold_6442y | No range specified | — |
| intel xeon_gold_6444y | No range specified | — |
| intel xeon_gold_6448h | No range specified | — |
| intel xeon_gold_6448y | No range specified | — |
| intel xeon_gold_6454s | No range specified | — |
| intel xeon_gold_6458q | No range specified | — |
| intel xeon_platinum_8444h | No range specified | — |
| intel xeon_platinum_8450h | No range specified | — |
| intel xeon_platinum_8452y | No range specified | — |
| intel xeon_platinum_8454h | No range specified | — |
| intel xeon_platinum_8458p | No range specified | — |
| intel xeon_platinum_8460h | No range specified | — |
| intel xeon_platinum_8460y | No range specified | — |
| intel xeon_platinum_8461v | No range specified | — |
| intel xeon_platinum_8462y | No range specified | — |
| intel xeon_platinum_8468 | No range specified | — |
| intel xeon_platinum_8468h | No range specified | — |
| intel xeon_platinum_8468v | No range specified | — |
| intel xeon_platinum_8470 | No range specified | — |
| intel xeon_platinum_8470n | No range specified | — |
| intel xeon_platinum_8470q | No range specified | — |
| intel xeon_platinum_8471n | No range specified | — |
| intel xeon_platinum_8480 | No range specified | — |
| intel xeon_platinum_8490h | No range specified | — |
| intel xeon_silver_4410t | No range specified | — |
| intel xeon_silver_4410y | No range specified | — |
| intel xeon_silver_4416 | No range specified | — |
| intel xeon_platinum_8462y_firmware | No range specified | — |
| intel xeon_platinum_8480_firmware | No range specified | — |
| intel xeon_gold_6438y_firmware | No range specified | — |
| intel xeon_platinum_8460y_firmware | No range specified | — |
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