CVE-2021-33540
In certain devices of the Phoenix Contact AXL F BK and IL BK product families an undocumented password protected FTP access to the root directory exists.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.72%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
In certain devices of the Phoenix Contact AXL F BK and IL BK product families an undocumented password protected FTP access to the root directory exists.
- CVSS 3.1
- 7.3 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
- EPSS
- 0.72% probability · 54th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-798
- Affected
- phoenixcontact/axl f bk pn tps xc firmware · phoenixcontact/axl f bk pn tps firmware · phoenixcontact/axl f bk eip firmware · phoenixcontact/axl f bk eip ef firmware · phoenixcontact/axl f bk eth firmware · phoenixcontact/axl f bk eth xc firmware · phoenixcontact/axl f bk s35 firmware · phoenixcontact/axl f bk pn firmware · phoenixcontact/axl f bk pn xc firmware · phoenixcontact/axl f bk eth net2 firmware · phoenixcontact/axl f bk sas firmware · phoenixcontact/il pn bk-pac firmware · phoenixcontact/il pn bk di8 do4 2tx-pac firmware · phoenixcontact/il pn bk di8 do4 2scrj-pac firmware · phoenixcontact/il eth bk di8 do4 2tx-xc-pac firmware · phoenixcontact/il eth bk di8 do4 2tx-pac firmware · phoenixcontact/il eip bk di8 do4 2tx-pac firmware · phoenixcontact/il s3 bk di8 do4 2tx-pac firmware
- Source
- info@cert.vde.com
EPSS 0.7% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://cert.vde.com/en-us/advisories/vde-2021-021Third Party Advisory
- https://cert.vde.com/en-us/advisories/vde-2021-021Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.