CVE-2020-0528 Memory corruption in BIOS

High 7.8 Published 15 Jun 2020 Updated 4 Aug 2024

An authenticated local attacker can exploit improper buffer restrictions in Intel Core BIOS to escalate privileges or cause denial of service.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2020-0528?

CVE-2020-0528 is a high-severity memory corruption vulnerability in BIOS, published on 15 Jun 2020. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Improper buffer restrictions in BIOS firmware for 7th, 8th, 9th and 10th Generation Intel(R) Core(TM) Processor families may allow an authenticated user to potentially enable escalation of privilege and/or denial of service via local access.

Which versions are affected by CVE-2020-0528?

It affects 79 products.

Products include Intel Core I5-7200u Firmware, Intel Core I5-7260u Firmware, Intel Core I5-7267u Firmware, Intel Core I5-7287u Firmware, Intel Core I5-7300hq Firmware, Intel Core I5-7300u Firmware and 73 more.

How do I fix CVE-2020-0528?

No fix has been published for CVE-2020-0528 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2020-0528 being exploited?

There is no known exploitation of CVE-2020-0528 in the wild and no public exploit code.

Sources

Also known as GHSA-99vc-mv52-jqgx.