vulnwire
9.8crit

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…

Published 9 y ago · modified 4 mo ago · JSON

CVSS
9.8
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
1.8%
percentile 78%
Public exploits
0
none known

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.

Exploit prediction (EPSS)

1.78% probability of exploitation in the next 30 days, higher than 78% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.09.8CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD2.07.5AV:N/AC:L/Au:N/C:P/I:P/A:P

References

  • securityfocus.com /bid/98086 · vdb-entry, x_refsource_BID, x_transferred
  • trustwave.com /Resources/Security-Advisories/Advisories/Multiple-Vulnerabilities-in-Avast-Antivirus/?fid · x_refsource_MISC, x_transferred

Sources

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.