CVE-2017-9811
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).
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 10.5%, higher than 96% of all known CVEs. Patch or mitigate before the next change window.
Description
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.
- CVSS 3.0
- 9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 10.47% probability · 96th percentile
- Public exploits
- 1 in Exploit-DB · verified · first 28 June 2017
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- kaspersky/anti-virus for linux server
- Source
- cve@mitre.org
EPSS moved from 7.5% on 21 September 2026 to 10.5% on 27 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
Public exploits (1)
Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.
References
- http://packetstormsecurity.com/files/143190/Kaspersky-Anti-Virus-File-Server-8.0.3.297-XSS-CSRF-Code-Execution.htmlExploit, Third Party Advisory, VDB Entry
- http://seclists.org/fulldisclosure/2017/Jun/33Exploit, Mailing List, Third Party Advisory, VDB Entry
- http://www.securityfocus.com/bid/99330Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1038798Third Party Advisory, VDB Entry
- https://www.coresecurity.com/advisories/kaspersky-anti-virus-file-server-multiple-vulnerabilitiesExploit, Third Party Advisory
- https://www.exploit-db.com/exploits/42269/
- http://packetstormsecurity.com/files/143190/Kaspersky-Anti-Virus-File-Server-8.0.3.297-XSS-CSRF-Code-Execution.htmlExploit, Third Party Advisory, VDB Entry
- http://seclists.org/fulldisclosure/2017/Jun/33Exploit, Mailing List, Third Party Advisory, VDB Entry
- http://www.securityfocus.com/bid/99330Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1038798Third Party Advisory, VDB Entry
- https://www.coresecurity.com/advisories/kaspersky-anti-virus-file-server-multiple-vulnerabilitiesExploit, Third Party Advisory
- https://www.exploit-db.com/exploits/42269/
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.