CVE-2020-9307
Medium
Description
Hirschmann OS2, RSP, and RSPE devices before HiOS 08.3.00 allow a denial of service. An unauthenticated, adjacent attacker can cause an infinite loop on one of the HSR ring ports of the device. This effectively breaks the redundancy of the HSR ring. If the attacker can perform the same attack on a second device, the ring is broken into two parts (thus disrupting communication between devices in the different parts).
SeverityMedium
CVSS6.5
Exploit probability—
Product
Belden Hirschmann Hios
PublishedFeb 11, 2021
First seenFeb 11, 2021
How to fix
Update
- belden hirschmann_hios07.1.00, 08.3.00 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| belden hirschmann_hios | 07.0.04 ≤ v < 07.1.00, 08.0.00 ≤ v < 08.3.00 | 07.1.00, 08.3.00 |
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