Head-to-head
Cisco Duo vs OpenVPN
OpenVPN carries 30.0× the disclosed CVE volume of Cisco Duo. Volume reflects disclosure practice and install base as much as code quality — read it with the severity mix. Sourced from the NIST NVD; lower counts indicate a smaller disclosed vulnerability surface — not necessarily lower risk.
01
Disclosure record
Bars are normalized per row to the larger value; the leading count is emphasized.
| Cisco Duo | Metric | OpenVPN | ||
|---|---|---|---|---|
| 2 | Total CVEs | 60 | ||
| 0 | Critical | 8 | ||
| 0 | High | 30 | ||
| 2 | Medium | 18 | ||
| 0 | Low | 4 | ||
| 2 | Open in latest | 27 | ||
| 1 | Product families | 1 |
02
Risk profile
Each severity band as a share of the vendor's own total — strips out raw volume so the profiles compare directly.
Cisco Duo
0.0% critical- Critical
- 00.0%
- High
- 00.0%
- Medium
- 2100.0%
- Low
- 00.0%
OpenVPN
13.3% critical- Critical
- 813.3%
- High
- 3050.0%
- Medium
- 1830.0%
- Low
- 46.7%
03
Recent activity
Latest in-window disclosures per vendor, newest first. Each ID links to its NVD record.
Cisco Duo
| CVE | Severity | CVSS | Published |
|---|---|---|---|
| CVE-2025-20258(opens NVD record) | Medium | 5.4 | May 21, 2025 |
| CVE-2023-20207(opens NVD record) | Medium | 4.9 | Jul 12, 2023 |
| CVE-2023-20199(opens NVD record) | Medium | 6.2 | Jun 28, 2023 |
| CVE-2023-20123(opens NVD record) | Medium | 6.3 | Apr 5, 2023 |
| CVE-2022-20662(opens NVD record) | Medium | 6.1 | Sep 30, 2022 |
| CVE-2021-1492(opens NVD record) | Medium | 6.6 | Mar 25, 2021 |
OpenVPN
| CVE | Severity | CVSS | Published |
|---|---|---|---|
| CVE-2026-9560(opens NVD record) | High | 7.8 | May 26, 2026 |
| CVE-2026-34617(opens NVD record) | High | 8.7 | Apr 14, 2026 |
| CVE-2026-34615(opens NVD record) | Critical | 9.3 | Apr 14, 2026 |
| CVE-2026-34614(opens NVD record) | Medium | 6.1 | Apr 14, 2026 |
| CVE-2026-27303(opens NVD record) | Critical | 9.6 | Apr 14, 2026 |
| CVE-2026-27246(opens NVD record) | Critical | 9.3 | Apr 14, 2026 |