CVE-2022-26858 Auth bypass in CPG BIOS
A locally authenticated attacker can bypass security controls in Dell BIOS by sending malicious input to an SMI.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2022-26858?
CVE-2022-26858 is a medium-severity authentication bypass vulnerability in Dell Chengming 3980 Firmware, published on 6 Sep 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Dell BIOS versions contain an Improper Authentication vulnerability. A locally authenticated malicious user could potentially exploit this vulnerability by sending malicious input to an SMI in order to bypass security controls.
Weakness: CWE-287
Which versions are affected by CVE-2022-26858?
It affects 399 products.
Products include Dell Alienware M15 R6 Firmware, Dell Chengming 3980 Firmware, Dell Chengming 3988 Firmware, Dell Chengming 3990 Firmware, Dell Chengming 3991 Firmware, Dell Edge Gateway 3000 Firmware and 393 more.
How do I fix CVE-2022-26858?
No fix has been published for CVE-2022-26858 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2022-26858 being exploited?
There is no known exploitation of CVE-2022-26858 in the wild and no public exploit code.
Other vulnerabilities in Dell Chengming 3980 Firmware
Sources
Also known as GHSA-r95r-f5pv-5rr9.