CVE-2017-8307

Name: CVE-2017-8307
Creator: NVD / NIST
Published: 2017-04-27T20:59:00.167+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.78%

Last modified Jun 17, 2026

CVE-2017-8307 is a vulnerability of currently unknown severity. In Avast Antivirus before v17, using the LPC interface API exposed by the AvastSVC.exe Windows service, it is possible to launch predefined binaries, or replace or delete arbitrary files. This vulnerability is exploitable by any unprivileged user when Avast Self-Defense is disabled. EPSS estimates a 1.78% chance of exploitation in the next 30 days.

Description

In Avast Antivirus before v17, using the LPC interface API exposed by the AvastSVC.exe Windows service, it is possible to launch predefined binaries, or replace or delete arbitrary files. This vulnerability is exploitable by any unprivileged user when Avast Self-Defense is disabled. It is also exploitable in conjunction with CVE-2017-8308 when Avast Self-Defense is enabled. The vulnerability allows for Denial of Service attacks and hiding traces of a possible attack.

Metrics

EPSS Probability

1.78%

75.4th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Avast	Antivirus	<= 12.3.2279

References

http://www.securityfocus.com/bid/98086Third Party Advisory, VDB Entry
https://www.trustwave.com/Resources/Security-Advisories/Advisories/Multiple-Vulnerabilities-in-Avast-Antivirus/?fid=9201Exploit, Technical Description, Third Party Advisory
http://www.securityfocus.com/bid/98086Third Party Advisory, VDB Entry
https://www.trustwave.com/Resources/Security-Advisories/Advisories/Multiple-Vulnerabilities-in-Avast-Antivirus/?fid=9201Exploit, Technical Description, Third Party Advisory

Timeline

Published: Apr 27, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-8307?

How severe is CVE-2017-8307?

Severity scoring for CVE-2017-8307 is pending analysis. The EPSS model estimates a 1.78% probability of exploitation in the next 30 days.

How do I fix CVE-2017-8307?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-8307?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST