Hirschmann OS2, RSP, and RSPE devices before HiOS 08.3.00 allow a denial of service
Published Feb 11, 2021
6.5
MEDIUMCVSS 3.1
EPSS 0.59%
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).
Affected products
No data.
- ≥ 07.0.04 · < 07.1.00
- ≥ 08.0.00 · < 08.3.00
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
No CVSS v3.0 score for this CVE.
AV:A/AC:L/Au:N/C:N/I:N/A:C
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Table of values (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 0.59% (0.00586) | 46.08th | v5 (v2026.06.15) |
| Sep 20, 2026 | 0.59% (0.00586) | 46.70th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.07% (0.00066) | 29.45th | v3 (v2023.03.01) |
| Oct 28, 2023 | 0.07% (0.00066) | 27.55th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.06% (0.00057) | 21.67th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.40% (0.01404) | 49.02th | v2 (v2022.01.01) |
| Feb 3, 2022 | 3.40% (0.03396) | 67.40th | v1 |
| Jan 6, 2022 | 3.40% (0.03396) | 67.08th | v1 |
| Jan 5, 2022 | 0.78% (0.00777) | 52.24th | v5 (v2026.06.15) |
| Apr 14, 2021 | 0.78% (0.00777) | 0.00th | v1 |
References (2)
- https://www.belden.com/dfsmedia/f1e38517e0cd4caa8b1acb6619890f5e/12276-source/options/view x_refsource_CONFIRMVendor Advisory
- https://www.belden.com/security x_refsource_MISCVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://www.belden.com/dfsmedia/f1e38517e0cd4caa8b1acb6619890f5e/12276-source/options/view | x_refsource_CONFIRMVendor Advisory | |
| https://www.belden.com/security | x_refsource_MISCVendor Advisory |
Change history (0)
No recorded changes yet.