CVE-2021-21003
Medium
Description
In Phoenix Contact FL SWITCH SMCS series products in multiple versions fragmented TCP-Packets may cause a Denial of Service of Web-, SNMP- and ICMP-Echo services. The switching functionality of the device is not affected.
SeverityMedium
CVSS5.3
Exploit probability—
ProductPhoenixcontact Fl Switch Smcs 16tx Firmware
PublishedJun 25, 2021
First seenJun 25, 2021
Weakness typeCWE-404CWE-404
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| phoenixcontact fl_switch_smcs_16tx_firmware | v ≤ 4.70 | — |
| phoenixcontact fl_switch_smcs_14tx\/2fx_firmware | v ≤ 4.70 | — |
| phoenixcontact fl_switch_smcs_14tx\/2fx-sm_firmware | v ≤ 4.70 | — |
| phoenixcontact fl_switch_smcs_8gt_firmware | v ≤ 4.70 | — |
| phoenixcontact fl_switch_smcs_6gt\/2sfp_firmware | v ≤ 4.70 | — |
| phoenixcontact fl_switch_smcs_8tx-pn_firmware | v ≤ 4.70 | — |
| phoenixcontact fl_switch_smcs_4tx-pn_firmware | v ≤ 4.70 | — |
| phoenixcontact fl_switch_smcs_8tx_firmware | v ≤ 4.70 | — |
| phoenixcontact fl_switch_smcs_6tx\/2sfp_firmware | v ≤ 4.70 | — |
| phoenixcontact fl_switch_smn_6tx\/2pof-pn_firmware | v ≤ 4.70 | — |
| phoenixcontact fl_switch_smn_8tx-pn_firmware | v ≤ 4.70 | — |
| phoenixcontact fl_switch_smn_6tx\/2fx_firmware | v ≤ 4.70 | — |
| phoenixcontact fl_switch_smn_6tx\/2fx_sm_firmware | v ≤ 4.70 | — |
| phoenixcontact fl_nat_smn_8tx_firmware | v ≤ 4.63 | — |
| phoenixcontact fl_nat_smn_8tx-m_firmware | v ≤ 4.63 | — |
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