Vulnerability in Avast Antivirus
CVE-2017-8307
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.018 (77.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 77th percentile — 77.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.018 · newest: 0.018 · change: 0.000
Affected products
References
- www.securityfocus.com/bid/98086 (VDB Entry, Third Party Advisory, vdb-entry)
- www.trustwave.com/Resources/Security-Advisories/Advisories/Multiple-Vulnerabili… (Technical Description, Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2017-8307?
- CVE-2017-8307 is a critical-severity vulnerability in Avast Antivirus. CVSS score: 9.8/10. Published 2017-04-27.
- How severe is CVE-2017-8307?
- Critical severity. CVSS v3 base score is 9.8 out of 10.