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Vulnerability record · CVE-2016-9892 · published 2 March 2017

CVE-2016-9892: Eset endpoint antivirus improper certificate validation vulnerability

Eset · Endpoint Antivirus

The esets_daemon service in ESET Endpoint Antivirus for macOS before 6.4.168.0 and Endpoint Security for macOS before 6.4.168.0 does not properly verify X.509 certificates from the edf.eset.com SSL server, which allows man-in-the-middle attackers to spoof this server and provide crafted responses to license activation requests via a self-signed certificate. NOTE: this issue can be combined with CVE-2016-0718 to execute arbitrary code remotely as root.

5.9 CVSS 3.0 Medium EPSS 1.7% · top 24.3% CWE-295 · Improper certificate validation
5.9CVSS 3.0 base score, v2 4.3
1.7%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
8References, 4 tagged exploit
17 Jun 2026Last modified by NVD

Description

The esets_daemon service in ESET Endpoint Antivirus for macOS before 6.4.168.0 and Endpoint Security for macOS before 6.4.168.0 does not properly verify X.509 certificates from the edf.eset.com SSL server, which allows man-in-the-middle attackers to spoof this server and provide crafted responses to license activation requests via a self-signed certificate. NOTE: this issue can be combined with CVE-2016-0718 to execute arbitrary code remotely as root.

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

Affected products

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

References

LinkTags
http://packetstormsecurity.com/files/141350/ESET-Endpoint-Antivirus-6-Remote-Code-Execution.html ExploitThird Party Advisory
http://seclists.org/fulldisclosure/2017/Feb/68 ExploitMailing List
http://support.eset.com/ca6333/ Vendor Advisory
http://www.securityfocus.com/bid/96462 Third Party AdvisoryVDB Entry
http://packetstormsecurity.com/files/141350/ESET-Endpoint-Antivirus-6-Remote-Code-Execution.html ExploitThird Party Advisory
http://seclists.org/fulldisclosure/2017/Feb/68 ExploitMailing List
http://support.eset.com/ca6333/ Vendor Advisory
http://www.securityfocus.com/bid/96462 Third Party AdvisoryVDB Entry

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Related vulnerabilities

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

8.6CVE-2023-5594Eset endpoint antivirus improper certificate validation vulnerabilityImproper validation of the server’s certificate chain in secure traffic scanning feature considered intermediate certificate signed using the MD5 or …EPSS 0.38%7.8CVE-2024-0353Eset endpoint antivirus improper privilege management vulnerabilityLocal privilege escalation vulnerability potentially allowed an attacker to misuse ESET’s file operations to delete files without having proper permi…EPSS 0.55%7.8CVE-2023-3160Eset endpoint antivirus improper privilege management vulnerabilityThe vulnerability potentially allows an attacker to misuse ESET’s file operations during the module update to delete or move files without having pro…EPSS 0.18%7.8CVE-2023-2847Eset cyber security improper privilege management vulnerabilityDuring internal security analysis, a local privilege escalation vulnerability has been identified. On a machine with the affected ESET product instal…EPSS 0.15%7.8CVE-2021-37851Eset endpoint antivirus vulnerabilityLocal privilege escalation in Windows products of ESET allows user who is logged into the system to exploit repair feature of the installer to run ma…EPSS 0.21%7.8CVE-2021-37852Eset endpoint antivirus improper privilege management vulnerabilityESET products for Windows allows untrusted process to impersonate the client of a pipe, which can be leveraged by attacker to escalate privileges in …EPSS 0.60%7.8CVE-2020-11446Eset antivirus and antispyware link following vulnerabilityESET Antivirus and Antispyware Module module 1553 through 1560 allows a user with limited access rights to create hard links in some ESET directories…EPSS 0.38%7.8CVE-2019-16519Eset cyber security improper privilege management vulnerabilityESET Cyber Security 6.7.900.0 for macOS allows a local attacker to execute unauthorized commands as root by abusing an undocumented feature in schedu…EPSS 0.30%

Source: NIST National Vulnerability Database (record CVE-2016-9892), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.