CVE-2016-20025 ZKTeco ZKAccess Professional 3.5.3 Privilege Escalation via Insecure Permissions
Authenticated users can escalate privileges by modifying executable files due to insecure file permissions in ZKTeco ZKAccess Professional.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2016-20025?
CVE-2016-20025 is a high-severity vulnerability in ZKTeco ZKAccess Professional, published on 15 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Weakness: CWE-552
Which versions are affected by CVE-2016-20025?
How do I fix CVE-2016-20025?
No fix has been published for CVE-2016-20025 yet. Limit exposure of the affected software until one is available.
Is CVE-2016-20025 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2016-20025 exists.
Sources
Also known as GHSA-qphc-j6pg-2qrg.