CVE-2022-27640
First published: Tue May 10 2022(Updated: )
A vulnerability has been identified in SIMATIC CP 442-1 RNA (All versions < V1.5.18), SIMATIC CP 443-1 RNA (All versions < V1.5.18). The affected devices improperly handles excessive ARP broadcast requests. This could allow an attacker to create a denial of service condition by performing ARP storming attacks, which can cause the device to reboot.
Credit: productcert@siemens.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Siemens Simatic CP 442-1 RNA | <1.5.18 | |
| Siemens Simatic CP 442-1 RNA Firmware | ||
| Siemens Simatic CP 443-1 RNA | <1.5.18 | |
| Siemens Simatic CP 443-1 RNA Firmware |
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Frequently Asked Questions
What is the severity of CVE-2022-27640?
CVE-2022-27640 has been classified as a high severity vulnerability due to the potential for denial of service attacks.
How do I fix CVE-2022-27640?
To address CVE-2022-27640, upgrade your Siemens SIMATIC CP 442-1 RNA or CP 443-1 RNA devices to firmware version 1.5.18 or higher.
What devices are affected by CVE-2022-27640?
CVE-2022-27640 affects all versions of Siemens SIMATIC CP 442-1 RNA and CP 443-1 RNA below version 1.5.18.
What type of attack is possible with CVE-2022-27640?
CVE-2022-27640 can be exploited to create an ARP storm, leading to a denial of service condition.
Is CVE-2022-27640 being actively exploited?
As of now, there are no reported active exploits for CVE-2022-27640, but it poses a significant risk if not mitigated.
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- canonical/siemens simatic cp 442-1 rna
- canonical/siemens simatic cp 442-1 rna firmware
- canonical/siemens simatic cp 443-1 rna
- canonical/siemens simatic cp 443-1 rna firmware