CVE-2026-20716CWE-284broken-access-control

CVE-2026-20716

High · published August 11, 2026

CVSS v3.1
7.0
EPSS
0%
Percentile
0.4
In the wild
Unconfirmed
What it is

Improper access control for some Intel(R) Processors within Ring 3: User Applications may allow an escalation of privilege. Simple hardware adversary with an authenticated user combined with a high complexity attack may enable escalation of privilege. This result may potentially occur via local access when attack requirements are present with special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (high), integrity (high) and availability (none) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts.

The record
Technical detail
CVSS v3.1
7.0 · HIGH
Vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00090 · 0.4th percentile
Weakness
CWE-284 · Improper Access Control
Published
2026-08-11T21:17Z
Affected products (90)
ProductVersionsFixed in
intel/xeon_634_firmwareall versions—
intel/xeon_636_firmwareall versions—
intel/xeon_638_firmwareall versions—
intel/xeon_654_firmwareall versions—
intel/xeon_656_firmwareall versions—
intel/xeon_658x_firmwareall versions—
intel/xeon_674x_firmwareall versions—
intel/xeon_676x_firmwareall versions—
intel/xeon_678x_firmwareall versions—
intel/xeon_696x_firmwareall versions—
intel/xeon_698x_firmwareall versions—
intel/xeon_6315p_firmwareall versions—
intel/xeon_6325p_firmwareall versions—
intel/xeon_6333p_firmwareall versions—
intel/xeon_6337p_firmwareall versions—
intel/xeon_6349p_firmwareall versions—
intel/xeon_6353p_firmwareall versions—
intel/xeon_6357p_firmwareall versions—
intel/xeon_6369p_firmwareall versions—
intel/xeon_6377p_firmwareall versions—
intel/xeon_6503p_firmwareall versions—
intel/xeon_6503p-b_firmwareall versions—
intel/xeon_6505p_firmwareall versions—
intel/xeon_6507p_firmwareall versions—
intel/xeon_6511p_firmwareall versions—
intel/xeon_6513p-b_firmwareall versions—
intel/xeon_6515p_firmwareall versions—
intel/xeon_6516p-b_firmwareall versions—
intel/xeon_6517p_firmwareall versions—
intel/xeon_6518p-b_firmwareall versions—
intel/xeon_6520p_firmwareall versions—
intel/xeon_6521p_firmwareall versions—
intel/xeon_6523p-b_firmwareall versions—
intel/xeon_6527p_firmwareall versions—
intel/xeon_6530p_firmwareall versions—
intel/xeon_6532p-b_firmwareall versions—
intel/xeon_6533p-b_firmwareall versions—
intel/xeon_6543p-b_firmwareall versions—
intel/xeon_6544p-b_firmwareall versions—
intel/xeon_6546p-b_firmwareall versions—
intel/xeon_6548p-b_firmwareall versions—
intel/xeon_6553p-b_firmwareall versions—
intel/xeon_6556p-b_firmwareall versions—
intel/xeon_6563p-b_firmwareall versions—
intel/xeon_6706p-b_firmwareall versions—
intel/xeon_6710e_firmwareall versions—
intel/xeon_6714p_firmwareall versions—
intel/xeon_6716p-b_firmwareall versions—
intel/xeon_6718p-b_firmwareall versions—
intel/xeon_6724p_firmwareall versions—
intel/xeon_6725p_firmwareall versions—
intel/xeon_6726p-b_firmwareall versions—
intel/xeon_6728p_firmwareall versions—
intel/xeon_6730p_firmwareall versions—
intel/xeon_6731e_firmwareall versions—
intel/xeon_6731p_firmwareall versions—
intel/xeon_6732p_firmwareall versions—
intel/xeon_6736p_firmwareall versions—
intel/xeon_6737p_firmwareall versions—
intel/xeon_6738p_firmwareall versions—
intel/xeon_6740e_firmwareall versions—
intel/xeon_6740p_firmwareall versions—
intel/xeon_6741p_firmwareall versions—
intel/xeon_6745p_firmwareall versions—
intel/xeon_6746e_firmwareall versions—
intel/xeon_6747p_firmwareall versions—
intel/xeon_6748p_firmwareall versions—
intel/xeon_6756e_firmwareall versions—
intel/xeon_6756p-b_firmwareall versions—
intel/xeon_6760p_firmwareall versions—
intel/xeon_6761p_firmwareall versions—
intel/xeon_6766e_firmwareall versions—
intel/xeon_6766p-b_firmwareall versions—
intel/xeon_6767p_firmwareall versions—
intel/xeon_6768p_firmwareall versions—
intel/xeon_6768p-b_firmwareall versions—
intel/xeon_6774p_firmwareall versions—
intel/xeon_6776p_firmwareall versions—
intel/xeon_6776p-b_firmwareall versions—
intel/xeon_6780e_firmwareall versions—
intel/xeon_6781p_firmwareall versions—
intel/xeon_6787p_firmwareall versions—
intel/xeon_6788p_firmwareall versions—
intel/xeon_6944p_firmwareall versions—
intel/xeon_6952p_firmwareall versions—
intel/xeon_6960p_firmwareall versions—
intel/xeon_6962p_firmwareall versions—
intel/xeon_6972p_firmwareall versions—
intel/xeon_6978p_firmwareall versions—
intel/xeon_6979p_firmwareall versions—
References (1)
EPSS history
Timeline
  • 11 AUG 16:25Z
    Improper access control for some Intel(R) Processors within Ring 3: User Applications may allow an escalation of privilege
    cvelistv5