← gociux.comall exploited CVEs

Exploited vulnerability · CISA KEV

Is CVE-2023-38950 exploited? Yes: in CISA KEV since 19 May 2025

Gociux · ZKTeco BioTime · data: CISA KEV, CVE record, FIRST EPSS

Yes. CVE-2023-38950, ZKTeco BioTime Path Traversal Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 19 May 2025, 655 days after it was published. It affects ZKTeco BioTime. If you run it, CISA's required action is: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

exploitedYesCISA KEV · 19 May 2025
ransomwareNot knownno confirmed use
EPSStop 1%among the most likely CVEs to be exploited
severity7.5CVSS 3.1 · high
US federal due9 Jun 2025BOD 22-01 deadline

What it is

ZKTeco BioTime contains a path traversal vulnerability in the iclock API that allows an unauthenticated attacker to read arbitrary files via supplying a crafted payload.

VendorZKTeco (1 exploited CVE in KEV)
ProductBioTime
VulnerabilityZKTeco BioTime Path Traversal Vulnerability
WeaknessCWE-22
Published3 Aug 2023
Added to KEV19 May 2025
Reported by (CNA)mitre

What to do

  1. Check whether you run it. Look for BioTime in your asset inventory, including appliances and cloud images. Stack check lists every exploited ZKTeco CVE at once.
  2. Apply the fix. Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
  3. If you can't patch today, take the affected service off the internet or restrict who can reach it, and check its logs for signs of compromise since 3 Aug 2023.
  4. Get told next time. Email alerts when CISA adds a CVE for ZKTeco.

References

Questions

Is CVE-2023-38950 being exploited?

Yes. CISA added CVE-2023-38950 to the Known Exploited Vulnerabilities catalog on 19 May 2025, which means there is reliable evidence of exploitation in the wild.

Is CVE-2023-38950 used in ransomware attacks?

CISA does not list known ransomware use for it. That can change, and exploitation alone is reason to fix it first.

How do I fix CVE-2023-38950?

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. Check ZKTeco's advisory for the fixed versions, and if you can't patch quickly, restrict access to the affected BioTime and watch it for signs of compromise.

Sources: CISA KEV (exploitation, ransomware use, required action, due date), the CVE record (publication date, CVSS, CNA), NVD and FIRST EPSS (live score). More: all KEV additions in May 2025 · act-now radar.

Running ZKTeco in a regulated environment?

We check exposure across your estate, patch or mitigate with your team, and set up detection for what attackers do after exploiting it.

Get in touch →