01 Record
CVE-2021-34570
Phoenix Contact: DoS for PLCnext Control devices in versions prior to 2021.0.5 LTS
HighPUBLISHEDCNA: CERTVDE
CNA base score7.5 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
02 Description
Phoenix Contact: DoS for PLCnext Control devices in versions prior to 2021.0.5 LTS
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 0.97% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 61.7% of scored records. A rank, not a probability.
- NVD base score
- 7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVD analysis status
- Modified. 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
- 2021-09-27 08:25Z5 YR AGO
- Last updated
- 2024-09-16 22:09Z2 YR AGO
- Reserved
- 2021-06-10
- Assigning CNA
- CERTVDE
- Record state
- PUBLISHED
- Severity
- High (CVSS 7.5)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-20Improper Input ValidationClass
- Data version
- 5.1
- Document digest
- bab38ab90a44baad5b8113519940925b804e942aef85bae21351cf565f178357
05 Affected products
VendorProductVersionsPlatforms
Phoenix ContactAXC FAXC F 1152 (1151412) to < 2021.0.5 LTS, AXC F 2152 (2404267) to < 2021.0.5 LTS, AXC F 3152 (1069208) to < 2021.0.5 LTS, AXC F 2152 Starterkit (1046568) to < 2021.0.5 LTS—
06 References
- cert.vde.comhttps://cert.vde.com/en/advisories/VDE-2021-029/
07 Remediation
Phoenix Contact recommends affected users to upgrade to the current Firmware 2021.0.5 LTS or higher which fixes this vulnerability.