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Vulnerability record · CVE-2016-20025 · published 16 March 2026

CVE-2016-20025: ZKTeco ZKAccess Professional 3.5.3 contains an insecure file permissions vulnerability that allows authenticat…

ZKTeco ZKAccess Professional 3.5.3 contains an insecure file permissions vulnerability that allows authenticated users to escalate privileges by modifying executable files. Attackers can leverage the Modify permission granted to the Authenticated Users group to replace executable binaries with malicious code for privilege escalation.

8.7 CVSS 4.0 High EPSS 0.44% · top 64.0% CWE-552 · CWE-552 Deferred
8.7CVSS 4.0 base score
0.44%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
6References
17 Jun 2026Last modified by NVD

Description

ZKTeco ZKAccess Professional 3.5.3 contains an insecure file permissions vulnerability that allows authenticated users to escalate privileges by modifying executable files. Attackers can leverage the Modify permission granted to the Authenticated Users group to replace executable binaries with malicious code for privilege escalation.

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://cxsecurity.com/issue/WLB-2016080265
https://exchange.xforce.ibmcloud.com/vulnerabilities/116486
https://packetstormsecurity.com/files/138566
https://www.exploit-db.com/exploits/40323/
https://www.vulncheck.com/advisories/zkteco-zkaccess-professional-privilege-escalation-via-insecure-permissions
https://www.zeroscience.mk/en/vulnerabilities/ZSL-2016-5361.php

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Source: NIST National Vulnerability Database (record CVE-2016-20025), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.