Improper input validation in Phoenix Contact Axc F
CVE-2021-34570
Multiple Phoenix Contact PLCnext control devices in versions prior to 2021.0.5 LTS are prone to a DoS attack through special crafted JSON requests.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.010 (60.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 61st percentile — 60.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000
Affected products
- Phoenix Contact Axc F — versions AXC F 1152 (1151412), AXC F 2152 (2404267), AXC F 3152 (1069208)
- Phoenix Contact Plcnext — versions PLCnext Technology Starterkit (1188165)
- Phoenix Contact Rfc — versions RFC 4072S (1051328)
- Phoenixcontact Axc F 1152
- Phoenixcontact Axc F 1152 Firmware
- Phoenixcontact Axc F 2152
- Phoenixcontact Axc F 2152 Firmware
- Phoenixcontact Axc F 2152 Starterkit
- Phoenixcontact Axc F 2152 Starterkit Firmware
- Phoenixcontact Axc F 3152
Weakness classification (CWE)
References
- cert.vde.com/en/advisories/VDE-2021-029/ (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-34570?
- CVE-2021-34570 is a high-severity vulnerability in Phoenix Contact Axc F, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2021-09-27.
- How severe is CVE-2021-34570?
- High severity. CVSS v3 base score is 7.5 out of 10.