# What is CVE-2017-3767?

> CVE-2017-3767 is a high-severity flaw (CVSS 7.8) in Audio Driver Firmware from Realtek, published on 13 November 2017. 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-2017-3767

## 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:** 46 out of 100 (Medium); action: Plan remediation. Kept up to date as the evidence changes.
- **Severity:** High (CVSS 7.8 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:** 13 November 2017
- **Record last updated:** 20 April 2025
- **Main product:** Audio Driver Firmware from Realtek
- **Affected products:** 47

## What is CVE-2017-3767? 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, change data and take it offline.

### The official description

A local privilege escalation vulnerability was identified in the Realtek audio driver versions prior to 6.0.1.8224 in some Lenovo ThinkPad products. An attacker with local privileges could execute code with administrative privileges.

### 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, change data and take it offline

Severity vector: `CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`

## Is CVE-2017-3767 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

- 13 November 2017: Published
- 20 April 2025: Record last updated

### How Precursor Intelligence ranks it

CVE-2017-3767 scores **46 out of 100 (Medium)**, with the action "Plan remediation".

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-2017-3767?

The published record lists 47 products. Versions are as published: "before 6.0.1.8224" means every version up to, but not including, 6.0.1.8224.

- [Audio Driver Firmware](https://www.precursorintelligence.com/product/realtek/audio_driver_firmware) by [Realtek](https://www.precursorintelligence.com/vendors/realtek) (Operating system): before 6.0.1.8224
- [Thinkpad 10](https://www.precursorintelligence.com/product/lenovo/thinkpad_10) 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 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 Kbl](https://www.precursorintelligence.com/product/lenovo/thinkpad_l470_kbl) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad L470 Skl](https://www.precursorintelligence.com/product/lenovo/thinkpad_l470_skl) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad L560](https://www.precursorintelligence.com/product/lenovo/thinkpad_l560) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad P50](https://www.precursorintelligence.com/product/lenovo/thinkpad_p50) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad P50s](https://www.precursorintelligence.com/product/lenovo/thinkpad_p50s) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad P51s](https://www.precursorintelligence.com/product/lenovo/thinkpad_p51s) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad P70](https://www.precursorintelligence.com/product/lenovo/thinkpad_p70) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad P71](https://www.precursorintelligence.com/product/lenovo/thinkpad_p71) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad S1](https://www.precursorintelligence.com/product/lenovo/thinkpad_s1) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad S1 Yoga](https://www.precursorintelligence.com/product/lenovo/thinkpad_s1_yoga) 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](https://www.precursorintelligence.com/product/lenovo/thinkpad_s2) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad T440](https://www.precursorintelligence.com/product/lenovo/thinkpad_t440) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad T440p](https://www.precursorintelligence.com/product/lenovo/thinkpad_t440p) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad T440s](https://www.precursorintelligence.com/product/lenovo/thinkpad_t440s) 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 T460s](https://www.precursorintelligence.com/product/lenovo/thinkpad_t460s) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad T470](https://www.precursorintelligence.com/product/lenovo/thinkpad_t470) 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 T470s Skl](https://www.precursorintelligence.com/product/lenovo/thinkpad_t470s_skl) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad T540p](https://www.precursorintelligence.com/product/lenovo/thinkpad_t540p) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad T550](https://www.precursorintelligence.com/product/lenovo/thinkpad_t550) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad T560](https://www.precursorintelligence.com/product/lenovo/thinkpad_t560) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad T570](https://www.precursorintelligence.com/product/lenovo/thinkpad_t570) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad W540](https://www.precursorintelligence.com/product/lenovo/thinkpad_w540) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad W541](https://www.precursorintelligence.com/product/lenovo/thinkpad_w541) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad W550s](https://www.precursorintelligence.com/product/lenovo/thinkpad_w550s) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad X1 Carbon](https://www.precursorintelligence.com/product/lenovo/thinkpad_x1_carbon) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad X1 Tablet](https://www.precursorintelligence.com/product/lenovo/thinkpad_x1_tablet) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad X1 Yoga](https://www.precursorintelligence.com/product/lenovo/thinkpad_x1_yoga) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad X1c](https://www.precursorintelligence.com/product/lenovo/thinkpad_x1c) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad X240](https://www.precursorintelligence.com/product/lenovo/thinkpad_x240) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad X240s](https://www.precursorintelligence.com/product/lenovo/thinkpad_x240s) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad X250](https://www.precursorintelligence.com/product/lenovo/thinkpad_x250) 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 Kbl](https://www.precursorintelligence.com/product/lenovo/thinkpad_x270_kbl) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified
- [Thinkpad X270 Skl](https://www.precursorintelligence.com/product/lenovo/thinkpad_x270_skl) 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

## How do I fix CVE-2017-3767?

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 latest update from the vendor. The references list where the vendor has published details.
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-15759) (Issue tracking, Third-party advisory)

## Questions

### What is CVE-2017-3767?

CVE-2017-3767 is a high-severity flaw in Audio Driver Firmware from Realtek, published on 13 November 2017. 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, change data and take it offline.

### How serious is CVE-2017-3767?

It scores 7.8 out of 10 on the CVSS severity scale, which is high. Our risk score for CVE-2017-3767 is 46 out of 100, which is Medium. Its action is "Plan remediation". No sign of exploitation and a low forecast. Patch it in your normal update cycle.

### Is CVE-2017-3767 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-2017-3767 affect?

For Audio Driver Firmware from Realtek: before 6.0.1.8224. The record lists 47 products in all, each with its versions, under "Who is affected" on this page.

### How do I fix CVE-2017-3767?

Install the update the vendor names in its advisory. If you can't patch today, follow the vendor's mitigation and limit who can reach the affected system from the internet.

## Does CVE-2017-3767 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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