← Vulnerability feed

Vulnerability record · CVE-2026-20898 · published 11 August 2026

CVE-2026-20898: Intel xeon 6315p firmware improper access control vulnerability

Intel · Xeon 6315p Firmware

Improper access control in the firmware for some in Alias Checking Trusted Module for some Intel(R) Xeon(R) processors may allow an escalation of privilege. Startup code and SMM adversary with a privileged user combined with a high complexity attack may enable escalation of privilege. This result may potentially occur via local access when attack requirements are not present without 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 (high), integrity (high) and availability (none) impacts.

8.5 CVSS 4.0 High EPSS 0.12% · top 98.3% CWE-284 · Improper access control
8.5CVSS 4.0 base score
0.12%EPSS exploitation probability, 30 days
NoNot in CISA KEV
150Affected product versions listed by NVD
1References
31 Aug 2026Last modified by NVD

Description

Improper access control in the firmware for some in Alias Checking Trusted Module for some Intel(R) Xeon(R) processors may allow an escalation of privilege. Startup code and SMM adversary with a privileged user combined with a high complexity attack may enable escalation of privilege. This result may potentially occur via local access when attack requirements are not present without 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 (high), integrity (high) and availability (none) impacts.

CVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:H/VI:H/VA:N/SC:H/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:

Affected products

150 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://intel.com/content/www/us/en/security-center/advisory/intel-sa-01439.html Vendor Advisory

Track CVE-2026-20898 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

7.2CVE-2026-20716Intel xeon 634 firmware improper access control vulnerabilityImproper access control for some Intel(R) Processors within Ring 3: User Applications may allow an escalation of privilege. Simple hardware adversary…EPSS 0.09%7.0CVE-2025-31936Intel xeon 6337p firmware vulnerabilityImproper handling of overlap between protected memory ranges for some Intel(R) Xeon(R) 6 processors when using Intel(R) TDX within SMM may allow an e…EPSS 0.10%7.8CVE-2026-81963Windows Update Stack link-following privilege escalationWindows Update Stack resolves links improperly before accessing files, a link-following flaw (CWE-59) compounded by improper access control (CWE-284)…KEVEPSS 0.39%analysed10.0CVE-2026-21962Oracle HTTP Server and WebLogic Proxy Plug-in improper access controlOracle HTTP Server and the WebLogic Server Proxy Plug-in (for Apache HTTP Server and IIS) contain an improper access control flaw (CWE-284) in suppor…KEVEPSS 71%analysed10.0CVE-2026-34908Ubiquiti UniFi OS improper access control allows unauthorized system changesUniFi OS devices contain an improper access control flaw (CWE-284) that lets a network-reachable actor make unauthorized changes to the system. The C…KEVEPSS 15%analysed10.0CVE-2026-48907JCE editor for Joomla allows unauthenticated profile creation and PHP uploadThe JCE editor extension for Joomla permits unauthenticated users to create new editor profiles, which leads to upload and execution of PHP code. Thi…KEVEPSS 16%analysed9.8CVE-2026-35616FortiClientEMS improper access control allows unauthenticated code executionFortinet FortiClientEMS 7.4.5 through 7.4.6 contains an improper access control flaw (CWE-284) that lets an unauthenticated attacker send crafted req…KEVEPSS 9.1%analysed7.5CVE-2025-31125Vite dev server improper access control exposes arbitrary filesVite's dev server fails to restrict file access when a request uses the ?inline&import or ?raw?import query patterns, allowing content of files that …KEVEPSS 65%analysed

Source: NIST National Vulnerability Database (record CVE-2026-20898), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.