CVE-2023-40540 Information disclosure in Intel(R) NUC BIOS firmware
A privileged local attacker can exploit non-transparent microarchitectural resource sharing in Intel NUC BIOS to disclose sensitive information.
- 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-2023-40540?
CVE-2023-40540 is a medium-severity vulnerability in Intel(R) NUC BIOS firmware, published on 14 Nov 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Non-Transparent Sharing of Microarchitectural Resources in some Intel(R) NUC BIOS firmware may allow a privileged user to potentially enable information disclosure via local access.
Weakness: CWE-1303
Which versions are affected by CVE-2023-40540?
It affects 56 products.
Products include Intel Nuc 11 Enthusiast Kit Nuc11phki7c Firmware, Intel Nuc 11 Enthusiast Mini Pc Nuc11phki7caa Firmware, Intel Nuc 11 Performance Kit Nuc11pahi30z Firmware, Intel Nuc 11 Performance Kit Nuc11pahi3 Firmware, Intel Nuc 11 Performance Kit Nuc11pahi50z Firmware, Intel Nuc 11 Performance Kit Nuc11pahi5 Firmware and 50 more.
How do I fix CVE-2023-40540?
No fix has been published for CVE-2023-40540 yet. Limit exposure of the affected software until one is available.
Is CVE-2023-40540 being exploited?
There is no known exploitation of CVE-2023-40540 in the wild and no public exploit code.
Sources
Also known as GHSA-2gmf-mp9h-g5xw.