Vulnerability in Intel Xeon 6315P Firmware (CVE-2026-20898, CVSS 7.2)

Summary

Vulnerability in Intel Xeon 6315P Firmware (CVE-2026-20898). Confidential information can be exposed externally.

Original description

The description as published by the source.

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.

Source: GitHub Security Advisories (Global) NVD GitHub Advisory

Auto-generated summary

Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.

A vulnerability tracked as CVE-2026-20898 has been found in Intel Xeon 6315P Firmware.
Confidential information can be exposed externally. CVSS score: 7.2/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "Intel Xeon 6315P Firmware CVE-2026-20898" on the vendor's site.

CVE-2026-20898 (Intel Xeon 6315P Firmware) — CWE-284 / CVSS v3 7.2
Attack vector: local / no user interaction
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.

❓ What is the problem

A vulnerability (CWE-284) exists in Intel Xeon 6315P Firmware.

📍 Affected scope

Check the vendor advisory for the affected versions of Intel Xeon 6315P Firmware.

🔥 Severity

Severity: High (CVSS 7.2/10). Confidential information can be exposed externally.

🔧 How to fix

Update to the patched release per vendor advisory.

🛡️ Workaround

Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.

🔍 Detection

Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Audit SBOM/dependencies to find affected services.

Response actions

Concrete steps and command examples for SOC/SRE teams to execute in order

1
Identify exposure identify
```
Audit SBOM/dependencies for affected components.
```
資産台帳・SBOM・依存マニフェストで Intel Xeon 6315P Firmware を使っているサービスとバージョンを洗い出す。
2
Post-deployment verification verify
```
Confirm patched version is live in production
```
パッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。

Summary

Original description

Auto-generated summary

Response actions

References