CVE-2022-2081
What it is
A vulnerability exists in the HCI Modbus TCP function included in the product versions listed above. If the HCI Modbus TCP is enabled and configured, an attacker could exploit the vulnerability by sending a specially crafted message to the RTU500 in a high rate, causing the targeted RTU500 CMU to reboot. The vulnerability is caused by a lack of flood control which eventually if exploited causes an internal stack overflow in the HCI Modbus TCP function.
At a glance
- Exploitability
- Can be exploited over the network without logging in. High risk of service disruption.
- Exploit odds
- 0.6% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.6% in the next 30 days (EPSS).
- Severity: 7.5 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.6% · EPSS, next 30 days
- Weakness
- CWE-787 · Out-of-bounds write
- Record status
- Modified
Affected
- Hitachienergy rtu520 Firmware ≤ 12.0.13
- Hitachienergy rtu520 Firmware ≤ 12.2.11
- Hitachienergy rtu520 Firmware ≤ 12.4.11
- Hitachienergy rtu520 Firmware ≤ 12.6.7
- Hitachienergy rtu520 Firmware ≤ 12.7.3
- Hitachienergy rtu520 Firmware ≤ 13.2.4
- Hitachienergy rtu520 Firmware 13.3.1
- Hitachienergy rtu530 Firmware ≤ 12.0.13
Attack profile CVSS 3.1 · 7.5
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Raw vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2022-2081.md and follow it. Check whether this project is affected by CVE-2022-2081. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://publisher.hitachienergy.com/preview?DocumentID=8DBD000111&LanguageCode=en&DocumentPartId=&Action=Launch
- https://publisher.hitachienergy.com/preview?DocumentID=8DBD000111&LanguageCode=en&DocumentPartId=&Action=Launch