← Vulnerability feed

Vulnerability record · CVE-2017-9811 · published 17 July 2017

CVE-2017-9811: Kaspersky anti-virus for linux server improper input validation vulnerability

Kaspersky · Anti Virus For Linux Server

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.

9.8 CVSS 3.0 Critical EPSS 10% · top 4.4% CWE-20 · Improper input validation
9.8CVSS 3.0 base score, v2 10.0
10%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
12References, 6 tagged exploit
17 Jun 2026Last modified by NVD

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/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://packetstormsecurity.com/files/143190/Kaspersky-Anti-Virus-File-Server-8.0.3.297-XSS-CSRF-Code-Execution.html ExploitThird Party AdvisoryVDB Entry
http://seclists.org/fulldisclosure/2017/Jun/33 ExploitMailing ListThird Party AdvisoryVDB Entry
http://www.securityfocus.com/bid/99330 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1038798 Third Party AdvisoryVDB Entry
https://www.coresecurity.com/advisories/kaspersky-anti-virus-file-server-multiple-vulnerabilities ExploitThird 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.html ExploitThird Party AdvisoryVDB Entry
http://seclists.org/fulldisclosure/2017/Jun/33 ExploitMailing ListThird Party AdvisoryVDB Entry
http://www.securityfocus.com/bid/99330 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1038798 Third Party AdvisoryVDB Entry
https://www.coresecurity.com/advisories/kaspersky-anti-virus-file-server-multiple-vulnerabilities ExploitThird Party Advisory
https://www.exploit-db.com/exploits/42269/

Track CVE-2017-9811 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

8.8CVE-2017-9810Kaspersky anti-virus for linux server cross-site request forgery vulnerabilityThere are no Anti-CSRF tokens in any forms on the web interface in Kaspersky Anti-Virus for Linux File Server before Maintenance Pack 2 Critical Fix …EPSS 1.9%7.5CVE-2017-9812Kaspersky anti-virus for linux server information exposure vulnerabilityThe reportId parameter of the getReportStatus action method can be abused in the web interface in Kaspersky Anti-Virus for Linux File Server before M…EPSS 11%6.1CVE-2017-9813Kaspersky anti-virus for linux server cross-site scripting vulnerabilityIn Kaspersky Anti-Virus for Linux File Server before Maintenance Pack 2 Critical Fix 4 (version 8.0.4.312), the scriptName parameter of the licenseKe…EPSS 2.6%9.5CVE-2026-93952Arista velocloud orchestrator improper input validation vulnerabilityVeloCloud Orchestrator (VCO) on-prem has a security issue where this issue may allow a remote attacker to access privileged internal functionality an…KEVEPSS 0.90%8.8CVE-2019-1068Microsoft SQL Server improper input validation remote code executionMicrosoft SQL Server mishandles processing of internal functions, allowing an authenticated remote attacker to execute code on the database server. T…KEVEPSS 58%analysed5.9CVE-2025-68686FortiOS symbolic link patch bypass exposes sensitive informationFortiOS contains an information exposure flaw (CWE-200) that lets a remote unauthenticated attacker bypass the patch for the symbolic link persistenc…KEVEPSS 30%analysed9.3CVE-2026-12569PTC Windchill PDMlink and FlexPLM deserialization RCEPTC Windchill PDMlink and FlexPLM contain a deserialization of untrusted data flaw (also classified as improper input validation) that allows remote …KEVEPSS 46%analysed10.0CVE-2026-34910Ubiquiti UniFi OS input validation flaw allows command injectionUniFi OS devices contain an improper input validation vulnerability (CWE-20) that lets a network-reachable attacker inject and execute commands. It a…KEVEPSS 46%analysed

Source: NIST National Vulnerability Database (record CVE-2017-9811), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.