Threat landscape
high

Intel BIOS: Mehrere Schwachstellen ermöglichen Privilegieneskalation

WID-SEC-2023-0374 · first 15.02.2023 · updated 23.01.2026 · CVSS 8,2

×

What it is about

Das BIOS ist die Firmware bei IBM PC kompatiblen Computern. Ein lokaler Angreifer kann mehrere Schwachstellen im BIOS für verschiedene Intel Prozessoren ausnutzen, um seine Privilegien zu erhöhen.

Under what conditions?

Only with access to the device or an account on it. Often the second step after a phishing email.

What can happen in the worst case

An attacker could use the vulnerability to

  • seine Privilegien zu erhöhen

Am I affected?

Affected according to the BSI:

  • F5 BIG-IP
  • Dell Computer
  • HPE ProLiant
  • Intel BIOS
  • EMC Avamar
  • Dell BIOS
  • Dell PowerEdge
  • HPE Synergy
  • HP Computer
  • Dell PowerEdge T40 <1.10.0

The installed version is usually shown under “Help → About” or in the device’s admin interface.

What helps?

Update to at least:

  • Dell PowerEdge T40 1.10.0

Is the vulnerability already being exploited?

None of the CVEs is in the CISA catalogue of exploited vulnerabilities. That does not mean there are no attacks, only that none are documented.

Information and sources

CVE: CVE-2021-0187, CVE-2022-26343, CVE-2022-26837, CVE-2022-30539, CVE-2022-30704, CVE-2022-32231

Source: BSI warning and information service (CERT-Bund); CISA. The assessment of the conditions is my reading of the BSI text; the external pages are in their original language.

Set up in an hour, trained in a week.

Create a free account, add your team, unlock the course. You only pay when you start. Would you rather see what a test email looks like first? The self-test is free.

Add your team Test it yourself first