VulnerabilityModified
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.
HIGH 7.5EPSS 0.98%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.98%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.98% probability · 60th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- phoenixcontact/plcnext technology starterkit firmware · phoenixcontact/axc f 2152 starterkit firmware · phoenixcontact/rfc 4072s firmware · phoenixcontact/axc f 3152 firmware · phoenixcontact/axc f 1152 firmware · phoenixcontact/axc f 2152 firmware
- Source
- info@cert.vde.com
References
- https://cert.vde.com/en/advisories/VDE-2021-029/Patch, Third Party Advisory
- https://cert.vde.com/en/advisories/VDE-2021-029/Patch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.