In VOS compromised, an attacker at network endpoints can possibly view communications between an unsuspecting user and the service using man-in-the-middle attacks
Published May 26, 2021
5.9
MEDIUMCVSS 3.1
EPSS 0.31%
Description
In VOS compromised, an attacker at network endpoints can possibly view communications between an unsuspecting user and the service using man-in-the-middle attacks. Usage of unapproved SSH encryption protocols or cipher suites also violates the Data Protection TSR (Technical Security Requirements).
Affected products
- Vendor n/a Product Versa VOS Defaultn/a
- Version Fixed Versions: 16.1R2S11, 20.2.2, 21.1.1, 21.2.1StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| n/a | Versa VOS | n/a |
|
- n/a
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:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
No CVSS v3.0 score for this CVE.
AV:N/AC:M/Au:N/C:P/I:N/A:N
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 1, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Table of values (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.31% (0.00310) | 21.60th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.31% (0.00310) | 22.51th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.07% (0.00067) | 18.09th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.08% (0.00081) | 36.67th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.08% (0.00084) | 34.11th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.89% (0.00885) | 10.50th | v2 (v2022.01.01) |
| Feb 3, 2022 | 0.42% (0.00416) | 10.04th | v5 (v2026.06.15) |
| May 27, 2021 | 0.42% (0.00416) | 0.00th | v1 |
References (1)
- https://hackerone.com/reports/1168196 x_refsource_MISCThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://hackerone.com/reports/1168196 | x_refsource_MISCThird Party Advisory |
Change history (0)
No recorded changes yet.