Catalyst SD-WAN Manager vulnerabilities: known CVEs & security history
Cisco · Actively exploited · 87 tracked CVEs · 8 actively exploited · updated June 2026 · what is a CVE? →
This is the full list of known vulnerabilities (CVEs) across all Catalyst SD-WAN Manager release lines — 87 in total, with 8 actively exploited in the wild. A CVE here doesn't mean your version is affected — check Catalyst SD-WAN Manager's current status and the safe version to run.
Known Catalyst SD-WAN Manager CVEs
Actively-exploited and most-severe first. Showing the top 80 of 87. Open any CVE for full details.
| CVE | Severity | CVSS | EPSS | Year |
|---|---|---|---|---|
| CVE-2026-20182⚡ exploited | critical | 10 | 78% | 2026 |
| CVE-2026-20127⚡ exploited | critical | 10 | 48% | 2026 |
| CVE-2026-20245⚡ exploited | high | 7.8 | 1% | 2026 |
| CVE-2022-20775⚡ exploited | high | 7.8 | 12% | 2022 |
| CVE-2026-20128⚡ exploited | high | 7.5 | 5% | 2026 |
| CVE-2026-20262⚡ exploited | medium | 6.5 | 2% | 2026 |
| CVE-2026-20133⚡ exploited | medium | 6.5 | 9% | 2026 |
| CVE-2026-20122⚡ exploited | medium | 5.4 | 6% | 2026 |
| CVE-2026-20129 | critical | 9.8 | 1% | 2026 |
| CVE-2023-20252 | critical | 9.8 | 1% | 2023 |
| CVE-2021-1508 | critical | 9.8 | 2% | 2021 |
| CVE-2021-1506 | critical | 9.8 | 2% | 2021 |
| CVE-2021-1505 | critical | 9.8 | 2% | 2021 |
| CVE-2021-1468 | critical | 9.8 | 2% | 2021 |
| CVE-2021-1275 | critical | 9.8 | 2% | 2021 |
| CVE-2021-1301 | critical | 9.8 | 2% | 2021 |
| CVE-2021-1300 | critical | 9.8 | 2% | 2021 |
| CVE-2023-20214 | critical | 9.1 | 1% | 2023 |
| CVE-2026-20126 | high | 8.8 | 0% | 2026 |
| CVE-2021-1284 | high | 8.8 | 0% | 2021 |
| CVE-2021-1304 | high | 8.8 | 2% | 2021 |
| CVE-2021-1302 | high | 8.8 | 2% | 2021 |
| CVE-2021-1299 | high | 8.8 | 2% | 2021 |
| CVE-2021-1298 | high | 8.8 | 2% | 2021 |
| CVE-2021-1241 | high | 8.6 | 1% | 2021 |
| CVE-2021-1279 | high | 8.6 | 1% | 2021 |
| CVE-2021-1278 | high | 8.6 | 2% | 2021 |
| CVE-2021-1274 | high | 8.6 | 2% | 2021 |
| CVE-2021-1273 | high | 8.6 | 1% | 2021 |
| CVE-2020-26071 | high | 8.4 | 0% | 2024 |
| CVE-2020-26064 | high | 8.1 | 1% | 2023 |
| CVE-2025-20122 | high | 7.8 | 0% | 2025 |
| CVE-2020-26074 | high | 7.8 | 0% | 2024 |
| CVE-2022-20716 | high | 7.8 | 0% | 2022 |
| CVE-2021-1528 | high | 7.8 | 0% | 2021 |
| CVE-2021-1514 | high | 7.8 | 0% | 2021 |
| CVE-2021-1480 | high | 7.8 | 2% | 2021 |
| CVE-2021-1479 | high | 7.8 | 2% | 2021 |
| CVE-2021-1137 | high | 7.8 | 1% | 2021 |
| CVE-2021-1263 | high | 7.8 | 1% | 2021 |
| CVE-2021-1262 | high | 7.8 | 1% | 2021 |
| CVE-2021-1261 | high | 7.8 | 1% | 2021 |
| CVE-2021-1260 | high | 7.8 | 1% | 2021 |
| CVE-2020-26073 | high | 7.5 | 12% | 2024 |
| CVE-2022-20696 | high | 7.5 | 0% | 2022 |
| CVE-2021-1513 | high | 7.5 | 2% | 2021 |
| CVE-2022-20739 | high | 7.3 | 1% | 2022 |
| CVE-2023-20253 | high | 7.1 | 0% | 2023 |
| CVE-2021-1462 | medium | 6.7 | 0% | 2024 |
| CVE-2022-20930 | medium | 6.7 | 0% | 2022 |
| CVE-2025-20187 | medium | 6.5 | 1% | 2025 |
| CVE-2020-26066 | medium | 6.5 | 1% | 2024 |
| CVE-2021-1232 | medium | 6.5 | 1% | 2024 |
| CVE-2021-1491 | medium | 6.5 | 1% | 2024 |
| CVE-2021-1484 | medium | 6.5 | 1% | 2024 |
| CVE-2023-20261 | medium | 6.5 | 1% | 2023 |
| CVE-2020-26065 | medium | 6.5 | 2% | 2023 |
| CVE-2022-20747 | medium | 6.5 | 1% | 2022 |
| CVE-2022-20735 | medium | 6.5 | 0% | 2022 |
| CVE-2020-3592 | medium | 6.5 | 1% | 2020 |
| CVE-2021-1483 | medium | 6.4 | 1% | 2024 |
| CVE-2021-1482 | medium | 6.4 | 1% | 2024 |
| CVE-2024-20475 | medium | 6.4 | 0% | 2024 |
| CVE-2020-3590 | medium | 6.4 | 1% | 2020 |
| CVE-2020-3587 | medium | 6.4 | 1% | 2020 |
| CVE-2020-3579 | medium | 6.1 | 1% | 2020 |
| CVE-2021-1512 | medium | 6 | 0% | 2021 |
| CVE-2025-20157 | medium | 5.9 | 0% | 2025 |
| CVE-2025-20213 | medium | 5.5 | 0% | 2025 |
| CVE-2021-1546 | medium | 5.5 | 0% | 2021 |
| CVE-2021-34700 | medium | 5.5 | 0% | 2021 |
| CVE-2025-20147 | medium | 5.4 | 0% | 2025 |
| CVE-2021-1466 | medium | 5.4 | 1% | 2024 |
| CVE-2021-34712 | medium | 5.4 | 1% | 2021 |
| CVE-2021-1234 | medium | 5.3 | 1% | 2024 |
| CVE-2023-20262 | medium | 5.3 | 1% | 2023 |
| CVE-2022-20830 | medium | 5.3 | 1% | 2022 |
| CVE-2021-1486 | medium | 5.3 | 1% | 2021 |
| CVE-2021-1464 | medium | 5 | 1% | 2024 |
| CVE-2021-1470 | medium | 4.9 | 1% | 2024 |
7 older / lower-severity CVEs not shown — see Catalyst SD-WAN Manager's full record.
Is my Catalyst SD-WAN Manager version affected?
The list above spans every release. To know whether your version is affected — and the minimum safe version to upgrade to — check it directly.
Check your Catalyst SD-WAN Manager version → · Monitor Catalyst SD-WAN Manager for new CVEs →
Catalyst SD-WAN Manager vulnerabilities — frequently asked
How many known vulnerabilities does Catalyst SD-WAN Manager have?
IsItPatched tracks 87 CVEs for Catalyst SD-WAN Manager, 8 of which are actively exploited (CISA KEV). 12 are critical-severity and 33 high-severity. These span every release line — what matters is whether the version you run is affected.
Does Catalyst SD-WAN Manager have any actively-exploited vulnerabilities?
Yes — 8 Catalyst SD-WAN Manager CVEs are in CISA's Known Exploited Vulnerabilities catalog, meaning they are confirmed exploited in the wild. Patch these as a priority.
What is the most severe Catalyst SD-WAN Manager vulnerability?
Among tracked issues, CVE-2026-20182 (CRITICAL, CVSS 10), which is actively exploited, ranks highest — a Improper authentication weakness.
Is Catalyst SD-WAN Manager safe to use?
It depends on the version. The latest supported Catalyst SD-WAN Manager release clears the known issues; older versions may still be affected. Check the exact version you run for a verdict.
CVE data aggregated from NVD, CISA KEV and EPSS (FIRST.org). Related: Catalyst SD-WAN Manager security status · Catalyst SD-WAN Manager end-of-life · actively-exploited CVEs. Always verify against Cisco's advisories — see our disclaimer.