CVE-2017-9811
The kluser is able to interact with the kav4fs-control binary in Kaspersky Anti-Virus for Linux...
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2017-9811- CVSS 3.0
- 9.8 Critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 10.0 High
AV:N/AC:L/Au:N/C:C/I:C/A:C - Weakness
- CWE-20
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2017-9811- Updated
- 2026-11-02
EUVDEUVD-2017-18726 No score
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.
- Record
EUVD-2017-18726- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-c4hx-wh9v-47f2
The kluser is able to interact with the kav4fs-control binary in Kaspersky Anti-Virus for Linux...
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.
- Record
GHSA-c4hx-wh9v-47f2- CVSS 3.0
- 9.8 Critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-20
- Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Exploit-DB | Kaspersky Anti-Virus File Server 8.0.3.297 - Multiple Vulnerabilities | 2017-06-28 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, Exploit-DB, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2017-9811 is a critical vulnerability (CVSS 9.8) in Kaspersky Anti-virus For Linux Server, published July 17, 2017. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 10.5%, the 95th percentile. No source names a fixed version.
References
seclists.org/fulldisclosure/2017/Jun/33
packetstormsecurity.com/files/143190/Kaspersky-Anti-Virus-File-Server-8.0.3.297-XSS-CSRF-Code-Execution.html
securityfocus.com/bid/99330
securitytracker.com/id/1038798
exploit-db.com/exploits/42269
coresecurity.com/advisories/kaspersky-anti-virus-file-server-multiple-vulnerabilities
nvd.nist.gov/vuln/detail/CVE-2017-9811
github.com/advisories/GHSA-c4hx-wh9v-47f2