# What is CVE-2020-0571?

> CVE-2020-0571 is a medium-severity flaw (CVSS 5.5) in BIOS from Intel, published on 5 October 2020. It is not on the list of flaws known to be exploited today. The latest forecast puts its chance of use in the next 30 days at 0.3%. If you run an affected version, plan in the vendor’s fix.

Canonical page: https://www.precursorintelligence.com/what-is/cve-2020-0571

## At a glance

- **Verdict:** Plan it in. No sign of exploitation and a low forecast. Patch it in your normal update cycle.
- **Precursor Intelligence risk score:** 21 out of 100 (Low); action: Monitor. Kept up to date as the evidence changes.
- **Severity:** Medium (CVSS 5.5 out of 10)
- **Known to be exploited:** No, not on the list of flaws known to be exploited today
- **Chance of use in the next 30 days:** 0.3% (latest exploit-likelihood forecast)
- **Published:** 5 October 2020
- **Record last updated:** 21 July 2021
- **Main product:** BIOS from Intel
- **Affected products:** 22

## What is CVE-2020-0571? In plain terms

An attacker has to be already on the device with an ordinary user account, and nobody has to click anything. If it works, the attacker can read data.

### The official description

Improper conditions check in BIOS firmware for 8th Generation Intel(R) Core(TM) Processors and Intel(R) Pentium(R) Silver Processor Series may allow an authenticated user to potentially enable information disclosure via local access.

### What kind of flaw is it?

- Unknown: Unknown

### How an attack on it works

- Where an attacker can be: Already on the device
- How hard it is to pull off: Easy: no special conditions
- Login needed first: An ordinary user account
- Does someone have to click: No, nobody has to do anything
- What an attacker gets: Can read data

Severity vector: `CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N`

## Is CVE-2020-0571 being exploited? Not that we know of

It is not on the list of flaws known to be exploited today. The latest forecast puts the chance of it being used in the next 30 days at 0.3%. That can change at any time, which is why we keep watching.

Exploit likelihood over the last 7 days: 0.3%, 0.3%, 0.3%, 0.3%, 0.3%, 0.3%, 0.3%.

### Timeline

- 5 October 2020: Published
- 21 July 2021: Record last updated

### How Precursor Intelligence ranks it

CVE-2020-0571 scores **21 out of 100 (Low)**, with the action "Monitor".

Every published flaw gets a risk score from 0 to 100, kept up to date as the evidence changes. Four things go into the score, from the one that counts most to the ones that count less:

- Evidence it is being exploited: biggest factor
- How severe it is: strong factor
- How widely exposed it is: smaller factor
- Threat activity around it: smaller factor

85 and above is Critical. Anything confirmed as exploited is always marked for an emergency patch, whatever its score. When this flaw matches software you track, it lands in your list with its score and the reasons behind it.

## Who is affected by CVE-2020-0571?

The published record lists 22 products.

- [BIOS](https://www.precursorintelligence.com/product/intel/bios) by [Intel](https://www.precursorintelligence.com/vendors/intel) (Operating system): version not specified
- [Core I3 8100](https://www.precursorintelligence.com/product/intel/core_i3_8100) by [Intel](https://www.precursorintelligence.com/vendors/intel) (Hardware): version not specified
- [Core I3 8100f](https://www.precursorintelligence.com/product/intel/core_i3_8100f) by [Intel](https://www.precursorintelligence.com/vendors/intel) (Hardware): version not specified
- [Core I3 8100t](https://www.precursorintelligence.com/product/intel/core_i3_8100t) by [Intel](https://www.precursorintelligence.com/vendors/intel) (Hardware): version not specified
- [Core I3 8300](https://www.precursorintelligence.com/product/intel/core_i3_8300) by [Intel](https://www.precursorintelligence.com/vendors/intel) (Hardware): version not specified
- [Core I3 8300t](https://www.precursorintelligence.com/product/intel/core_i3_8300t) by [Intel](https://www.precursorintelligence.com/vendors/intel) (Hardware): version not specified
- [Core I3 8350k](https://www.precursorintelligence.com/product/intel/core_i3_8350k) by [Intel](https://www.precursorintelligence.com/vendors/intel) (Hardware): version not specified
- [Core I5 8400](https://www.precursorintelligence.com/product/intel/core_i5_8400) by [Intel](https://www.precursorintelligence.com/vendors/intel) (Hardware): version not specified
- [Core I5 8400t](https://www.precursorintelligence.com/product/intel/core_i5_8400t) by [Intel](https://www.precursorintelligence.com/vendors/intel) (Hardware): version not specified
- [Core I5 8500](https://www.precursorintelligence.com/product/intel/core_i5_8500) by [Intel](https://www.precursorintelligence.com/vendors/intel) (Hardware): version not specified
- [Core I5 8500t](https://www.precursorintelligence.com/product/intel/core_i5_8500t) by [Intel](https://www.precursorintelligence.com/vendors/intel) (Hardware): version not specified
- [Core I5 8600](https://www.precursorintelligence.com/product/intel/core_i5_8600) by [Intel](https://www.precursorintelligence.com/vendors/intel) (Hardware): version not specified
- [Core I5 8600k](https://www.precursorintelligence.com/product/intel/core_i5_8600k) by [Intel](https://www.precursorintelligence.com/vendors/intel) (Hardware): version not specified
- [Core I5 8600t](https://www.precursorintelligence.com/product/intel/core_i5_8600t) by [Intel](https://www.precursorintelligence.com/vendors/intel) (Hardware): version not specified
- [Core I7 8086k](https://www.precursorintelligence.com/product/intel/core_i7_8086k) by [Intel](https://www.precursorintelligence.com/vendors/intel) (Hardware): version not specified
- [Core I7 8700](https://www.precursorintelligence.com/product/intel/core_i7_8700) by [Intel](https://www.precursorintelligence.com/vendors/intel) (Hardware): version not specified
- [Core I7 8700k](https://www.precursorintelligence.com/product/intel/core_i7_8700k) by [Intel](https://www.precursorintelligence.com/vendors/intel) (Hardware): version not specified
- [Core I7 8700t](https://www.precursorintelligence.com/product/intel/core_i7_8700t) by [Intel](https://www.precursorintelligence.com/vendors/intel) (Hardware): version not specified
- [Pentium Silver J5005](https://www.precursorintelligence.com/product/intel/pentium_silver_j5005) by [Intel](https://www.precursorintelligence.com/vendors/intel) (Hardware): version not specified
- [Pentium Silver J5040](https://www.precursorintelligence.com/product/intel/pentium_silver_j5040) by [Intel](https://www.precursorintelligence.com/vendors/intel) (Hardware): version not specified
- [Pentium Silver N5000](https://www.precursorintelligence.com/product/intel/pentium_silver_n5000) by [Intel](https://www.precursorintelligence.com/vendors/intel) (Hardware): version not specified
- [Pentium Silver N5030](https://www.precursorintelligence.com/product/intel/pentium_silver_n5030) by [Intel](https://www.precursorintelligence.com/vendors/intel) (Hardware): version not specified

## How do I fix CVE-2020-0571?

1. **Check whether you run it.** Compare your versions with the affected products above. Not sure what you run? Precursor Intelligence can work it out from your public website, or you can pick it from a list.
2. **Apply the vendor’s fix.** Install the update named in the vendor’s advisory. We’ve put the advisory first in the list.
3. **If you can’t patch today.** Follow any mitigation the vendor publishes, and limit who can reach the affected system from the internet until the update is in.
4. **Keep an eye on it.** Track the product and we tell you as soon as we spot this flaw on the list of exploited flaws, or a jump in its exploit likelihood.

### References

- [intel.com](https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00347.html) (Vendor advisory)

## Questions

### What is CVE-2020-0571?

CVE-2020-0571 is a medium-severity flaw in BIOS from Intel, published on 5 October 2020. An attacker has to be already on the device with an ordinary user account, and nobody has to click anything. If it works, the attacker can read data.

### How serious is CVE-2020-0571?

It scores 5.5 out of 10 on the CVSS severity scale, which is medium. Our risk score for CVE-2020-0571 is 21 out of 100, which is Low. Its action is "Monitor". No sign of exploitation and a low forecast. Patch it in your normal update cycle.

### Is CVE-2020-0571 being exploited?

It is not on the list of flaws known to be exploited today. The latest forecast puts the chance of it being used in the next 30 days at 0.3%. That can change at any time, which is why we keep watching.

### Which versions does CVE-2020-0571 affect?

For BIOS from Intel: version not specified. The record lists 22 products in all, each with its versions, under "Who is affected" on this page.

### How do I fix CVE-2020-0571?

Install the update the vendor names in its advisory, linked first under "How do I fix" on this page. If you can't patch today, follow the vendor's mitigation and limit who can reach the affected system from the internet.

## Does CVE-2020-0571 affect you?

Precursor Intelligence keeps checking for you:

- **Tell us what you run.** Pick your software from a list, or let us work it out from your website.
- **We match it to every flaw.** Over 400,000 published flaws, checked against your list.
- **Ranked by real-world risk.** Every flaw gets a 0 to 100 risk score, kept up to date, led by evidence criminals are using it.
- **Told as soon as we know.** An alert by email, in the app or by webhook to your own tools.

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