Auth bypass in Ziv Automation 4cct-Ea6-334126bf
CVE-2021-25910
Improper Authentication vulnerability in the cookie parameter of ZIV AUTOMATION 4CCT-EA6-334126BF allows a local attacker to perform modifications in several parameters of the affected device as an authenticated user.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.0 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.005 (37.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 38th percentile — 37.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Ziv Automation 4cct-Ea6-334126bf — versions 3.23.77.8.33251
- Zivautomation 4cct-Ea6-334126bf
- Zivautomation 4cct-Ea6-334126bf Firmware — versions 3.23.77.8.33251
Weakness classification (CWE)
References
- www.incibe-cert.es/en/early-warning/ics-advisories/4cct-vulnerable-improper-aut… (Third Party Advisory)
Frequently asked questions
- What is CVE-2021-25910?
- CVE-2021-25910 is a high-severity vulnerability in Ziv Automation 4cct-Ea6-334126bf, classified under Improper Authentication. CVSS score: 8.0/10. Published 2021-01-29.
- How severe is CVE-2021-25910?
- High severity. CVSS v3 base score is 8.0 out of 10.