# What is CVE-2020-8337?

> CVE-2020-8337 is a medium-severity flaw (CVSS 6.7) in Smart Audio Uwp from Synaptics, published on 9 June 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 0.4%. If you run an affected version, plan in the vendor’s fix.

Canonical page: https://www.precursorintelligence.com/what-is/cve-2020-8337

## 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:** 23 out of 100 (Low); action: Monitor. Kept up to date as the evidence changes.
- **Severity:** Medium (CVSS 6.7 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:** 0.4% (latest exploit-likelihood forecast)
- **Published:** 9 June 2020
- **Record last updated:** 19 June 2020
- **Main product:** Smart Audio Uwp from Synaptics
- **Affected products:** 83

## What is CVE-2020-8337? In plain terms

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

### The official description

An unquoted search path vulnerability was reported in versions prior to 1.0.83.0 of the Synaptics Smart Audio UWP app associated with the DCHU audio drivers on Lenovo platforms that could allow an administrative user to execute arbitrary code.

### What kind of flaw is it?

- CWE-428: Unquoted Search Path or Element

### 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 administrator account
- Does someone have to click: No, nobody has to do anything
- What an attacker gets: Can read data, change data and take it offline

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

## Is CVE-2020-8337 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 0.4%. That can change at any time, which is why we keep watching.

Exploit likelihood over the last 7 days: 0.4%, 0.4%, 0.4%, 0.4%, 0.4%, 0.4%, 0.4%.

### Timeline

- 9 June 2020: Published
- 19 June 2020: Record last updated

### How Precursor Intelligence ranks it

CVE-2020-8337 scores **23 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-2020-8337?

The published record lists 83 products. Versions are as published: "before 1.0.83.0" means every version up to, but not including, 1.0.83.0.

- [Smart Audio Uwp](https://www.precursorintelligence.com/product/synaptics/smart_audio_uwp) by [Synaptics](https://www.precursorintelligence.com/vendors/synaptics) (Application): before 1.0.83.0
- [5-15ikb](https://www.precursorintelligence.com/product/lenovo/5-15ikb) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Air-14 2019](https://www.precursorintelligence.com/product/lenovo/air-14_2019) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [C340-14iwl](https://www.precursorintelligence.com/product/lenovo/c340-14iwl) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Flex-14iwl](https://www.precursorintelligence.com/product/lenovo/flex-14iwl) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [S540-14iwl](https://www.precursorintelligence.com/product/lenovo/s540-14iwl) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [S540-14iwl Touch](https://www.precursorintelligence.com/product/lenovo/s540-14iwl_touch) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad 11e](https://www.precursorintelligence.com/product/lenovo/thinkpad_11e) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad 13](https://www.precursorintelligence.com/product/lenovo/thinkpad_13) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad A275](https://www.precursorintelligence.com/product/lenovo/thinkpad_a275) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad A285](https://www.precursorintelligence.com/product/lenovo/thinkpad_a285) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad A475](https://www.precursorintelligence.com/product/lenovo/thinkpad_a475) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad A485](https://www.precursorintelligence.com/product/lenovo/thinkpad_a485) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad E450](https://www.precursorintelligence.com/product/lenovo/thinkpad_e450) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad E450c](https://www.precursorintelligence.com/product/lenovo/thinkpad_e450c) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad E455](https://www.precursorintelligence.com/product/lenovo/thinkpad_e455) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad E460](https://www.precursorintelligence.com/product/lenovo/thinkpad_e460) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad E465](https://www.precursorintelligence.com/product/lenovo/thinkpad_e465) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad E470](https://www.precursorintelligence.com/product/lenovo/thinkpad_e470) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad E475](https://www.precursorintelligence.com/product/lenovo/thinkpad_e475) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad E480](https://www.precursorintelligence.com/product/lenovo/thinkpad_e480) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad E485](https://www.precursorintelligence.com/product/lenovo/thinkpad_e485) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad E490](https://www.precursorintelligence.com/product/lenovo/thinkpad_e490) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad E490s](https://www.precursorintelligence.com/product/lenovo/thinkpad_e490s) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad E540](https://www.precursorintelligence.com/product/lenovo/thinkpad_e540) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad E545](https://www.precursorintelligence.com/product/lenovo/thinkpad_e545) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad E550](https://www.precursorintelligence.com/product/lenovo/thinkpad_e550) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad E550c](https://www.precursorintelligence.com/product/lenovo/thinkpad_e550c) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad E555](https://www.precursorintelligence.com/product/lenovo/thinkpad_e555) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad E560](https://www.precursorintelligence.com/product/lenovo/thinkpad_e560) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad E565](https://www.precursorintelligence.com/product/lenovo/thinkpad_e565) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad E570](https://www.precursorintelligence.com/product/lenovo/thinkpad_e570) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad E575](https://www.precursorintelligence.com/product/lenovo/thinkpad_e575) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad E580](https://www.precursorintelligence.com/product/lenovo/thinkpad_e580) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad E585](https://www.precursorintelligence.com/product/lenovo/thinkpad_e585) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad E590](https://www.precursorintelligence.com/product/lenovo/thinkpad_e590) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad Edge E440](https://www.precursorintelligence.com/product/lenovo/thinkpad_edge_e440) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad Edge E445](https://www.precursorintelligence.com/product/lenovo/thinkpad_edge_e445) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad L380](https://www.precursorintelligence.com/product/lenovo/thinkpad_l380) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad L380 Yoga](https://www.precursorintelligence.com/product/lenovo/thinkpad_l380_yoga) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad L390 Yoga](https://www.precursorintelligence.com/product/lenovo/thinkpad_l390_yoga) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad L440](https://www.precursorintelligence.com/product/lenovo/thinkpad_l440) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad L450](https://www.precursorintelligence.com/product/lenovo/thinkpad_l450) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad L460](https://www.precursorintelligence.com/product/lenovo/thinkpad_l460) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad L470](https://www.precursorintelligence.com/product/lenovo/thinkpad_l470) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad L480](https://www.precursorintelligence.com/product/lenovo/thinkpad_l480) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad L540](https://www.precursorintelligence.com/product/lenovo/thinkpad_l540) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad L580](https://www.precursorintelligence.com/product/lenovo/thinkpad_l580) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad P1](https://www.precursorintelligence.com/product/lenovo/thinkpad_p1) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad P40](https://www.precursorintelligence.com/product/lenovo/thinkpad_p40) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad P53](https://www.precursorintelligence.com/product/lenovo/thinkpad_p53) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad P73](https://www.precursorintelligence.com/product/lenovo/thinkpad_p73) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad R490](https://www.precursorintelligence.com/product/lenovo/thinkpad_r490) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad R590](https://www.precursorintelligence.com/product/lenovo/thinkpad_r590) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad S1 3rd](https://www.precursorintelligence.com/product/lenovo/thinkpad_s1_3rd) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad S1 Yoga 12](https://www.precursorintelligence.com/product/lenovo/thinkpad_s1_yoga_12) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad S2 Yoga 3rd Gen](https://www.precursorintelligence.com/product/lenovo/thinkpad_s2_yoga_3rd_gen) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad S2 Yoga 4th Gen](https://www.precursorintelligence.com/product/lenovo/thinkpad_s2_yoga_4th_gen) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad S3](https://www.precursorintelligence.com/product/lenovo/thinkpad_s3) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad S3 3rd Gen](https://www.precursorintelligence.com/product/lenovo/thinkpad_s3_3rd_gen) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad S3 Yoga 14](https://www.precursorintelligence.com/product/lenovo/thinkpad_s3_yoga_14) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad S3-S440](https://www.precursorintelligence.com/product/lenovo/thinkpad_s3-s440) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad S5](https://www.precursorintelligence.com/product/lenovo/thinkpad_s5) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad T450](https://www.precursorintelligence.com/product/lenovo/thinkpad_t450) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad T450s](https://www.precursorintelligence.com/product/lenovo/thinkpad_t450s) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad T460](https://www.precursorintelligence.com/product/lenovo/thinkpad_t460) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad T460p](https://www.precursorintelligence.com/product/lenovo/thinkpad_t460p) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad T470p](https://www.precursorintelligence.com/product/lenovo/thinkpad_t470p) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad X1 Extreme](https://www.precursorintelligence.com/product/lenovo/thinkpad_x1_extreme) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad X260](https://www.precursorintelligence.com/product/lenovo/thinkpad_x260) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad X270](https://www.precursorintelligence.com/product/lenovo/thinkpad_x270) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad X380 Yoga](https://www.precursorintelligence.com/product/lenovo/thinkpad_x380_yoga) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad Yoga 11e](https://www.precursorintelligence.com/product/lenovo/thinkpad_yoga_11e) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad Yoga 11e 3rd Gen](https://www.precursorintelligence.com/product/lenovo/thinkpad_yoga_11e_3rd_gen) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad Yoga 11e 4th Gen](https://www.precursorintelligence.com/product/lenovo/thinkpad_yoga_11e_4th_gen) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad Yoga 11e 5th Gen](https://www.precursorintelligence.com/product/lenovo/thinkpad_yoga_11e_5th_gen) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad Yoga 14 460 S3](https://www.precursorintelligence.com/product/lenovo/thinkpad_yoga_14_460_s3) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad Yoga 370](https://www.precursorintelligence.com/product/lenovo/thinkpad_yoga_370) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [V130-15igm](https://www.precursorintelligence.com/product/lenovo/v130-15igm) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [V130-15ikb](https://www.precursorintelligence.com/product/lenovo/v130-15ikb) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [V310-15igm](https://www.precursorintelligence.com/product/lenovo/v310-15igm) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [V330-15igm](https://www.precursorintelligence.com/product/lenovo/v330-15igm) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Yoga 14](https://www.precursorintelligence.com/product/lenovo/yoga_14) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified

## How do I fix CVE-2020-8337?

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 advisories and patch notes 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

- [support.lenovo.com](https://support.lenovo.com/us/en/product_security/len-30707) (Vendor advisory)
- [synaptics.com](https://www.synaptics.com/sites/default/files/audio-driver-security-brief-2020-06-09.pdf) (Vendor advisory)

## Questions

### What is CVE-2020-8337?

CVE-2020-8337 is a medium-severity flaw in Smart Audio Uwp from Synaptics, published on 9 June 2020. An attacker has to be already on the device with an administrator account, and nobody has to click anything. If it works, the attacker can read data, change data and take it offline.

### How serious is CVE-2020-8337?

It scores 6.7 out of 10 on the CVSS severity scale, which is medium. Our risk score for CVE-2020-8337 is 23 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-2020-8337 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 0.4%. That can change at any time, which is why we keep watching.

### Which versions does CVE-2020-8337 affect?

For Smart Audio Uwp from Synaptics: before 1.0.83.0. The record lists 83 products in all, each with its versions, under "Who is affected" on this page.

### How do I fix CVE-2020-8337?

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-2020-8337 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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