01 Record
CVE-2016-20025
ZKTeco ZKAccess Professional 3.5.3 Privilege Escalation via Insecure Permissions
HighPUBLISHEDCNA: VulnCheck
CNA base score8.7 CVSS v4.0CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
02 Description
ZKTeco ZKAccess Professional 3.5.3 Privilege Escalation via Insecure Permissions
03 Exploitation and scoring
- Exploitation
- Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.
- SSVC decision
- ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
- EPSS probability
- 0.45% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 38.9% of scored records. A rank, not a probability.
- NVD base score
- 8.7 (CVSS v4.0), scored by the NVD independently of the CNA.
- NVD CVSS vector
- 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:X/V:X/RE:X/U:X
- NVD analysis status
- Deferred. NVD last modified this record on 2026-06-17.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2026-03-15 13:35Z7 MO AGO
- Last updated
- 2026-06-08 15:11Z4 MO AGO
- Reserved
- 2026-03-15
- Assigning CNA
- VulnCheck
- Record state
- PUBLISHED
- Severity
- High (CVSS 8.7)
- CNA CVSS vector
- 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
- Weaknesses
- CWE-552Files or Directories Accessible to External PartiesBase
- Data version
- 5.2
- Document digest
- ae8624f1fc58571901be45df644329f4425071aca32e470579ff0054f1c1f371
05 Affected products
VendorProductVersionsPlatforms
06 References
- www.zeroscience.mkZero Science Lab Disclosurehttps://www.zeroscience.mk/en/vulnerabilities/ZSL-2016-5361.php
- cxsecurity.comCXSecurityhttps://cxsecurity.com/issue/WLB-2016080265
- exchange.xforce.ibmcloud.comIBM X-Force Exchangehttps://exchange.xforce.ibmcloud.com/vulnerabilities/116486
- packetstormsecurity.comPacket Storm Securityhttps://packetstormsecurity.com/files/138566
- www.exploit-db.comReferencehttps://www.exploit-db.com/exploits/40323/
- www.vulncheck.comVulnCheck Advisory: ZKTeco ZKAccess Professional 3.5.3 Privilege Escalation via Insecure Permissionshttps://www.vulncheck.com/advisories/zkteco-zkaccess-professional-privilege-escalation-via-insecure-permissions
07 Remediation
The affected software ZKBioSecurity and ZKAccess have been officially discontinued. It is recommended that users switch to using ZKBio CVSecurity software. ZKBio CVSecurity has fixed these vulnerabilities. It is recommended that customers use the latest version of ZKBio CVSecurity to eliminate risks.