Skip to content
Fencer Intel
critical 9.8

CVE-2017-9811 in the critical feed json

The kluser is able to interact with the kav4fs-control binary in Kaspersky Anti-Virus for Linux File Server before Maintenance Pack 2 Criti…

published 2017-07-17 9 y ago modified 2026-06-17 4 mo ago also EUVD-2017-18726

cvss
9.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
10.5%
EPSS 10.5% chance of exploitation in 30 days, percentile 95%
public exploits
1
Exploit-DB

Summary

The kluser is able to interact with the kav4fs-control binary in Kaspersky Anti-Virus for Linux File Server before Maintenance Pack 2 Critical Fix 4 (version 8.0.4.312). By abusing the quarantine read and write operations, it is possible to elevate the privileges to root.

Timeline

  1. First public exploit (EDB-42269)
  2. Published

Exploit prediction

10.47% chance of exploitation in the next 30 days, higher than 95% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • EDB-42269 Kaspersky Anti-Virus File Server 8.0.3.297 - Multiple Vulnerabilities webapps, 2017-06-28
  • seclists.org http://seclists.org/fulldisclosure/2017/Jun/33 referenced PoC, tagged "exploit" by a source, unverified
  • packetstormsecurity.com http://packetstormsecurity.com/files/143190/Kaspersky-Anti-Virus-File-Server-8.0.3.297-XSS-CSRF-Code-Execution.html referenced PoC, tagged "exploit" by a source, unverified
  • coresecurity.com https://www.coresecurity.com/advisories/kaspersky-anti-virus-file-server-multiple-vulnerabilities referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.0 9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 10.0 AV:N/AC:L/Au:N/C:C/I:C/A:C

Classification

Weakness
  • CWE-20 Improper Input Validation

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.