exploit · Wed 30 Sep 2026 · 14:46 UTC
Actively exploitedCisco warns of new SD-WAN zero-day exploited in attacks
Filed UTCSource BLC ↗
Cisco released security updates to address a critical zero-day in the Catalyst SD-WAN Manager (tracked as CVE-2026-76504) that attackers are actively exploiting to escalate to admin privileges.
Signals
as the pipeline stamped them- KEV
- Active exploitation (KEV)
- What to do
- On CISA KEV — actively exploited. Patch immediately.
CISA KEV means this flaw has been seen exploited in real attacks — not predicted, observed. Treat it as urgent regardless of its score.
CVE
KEV from CISA · EPSS from FIRST| Id | KEV | EPSS | Reference |
|---|---|---|---|
| CVE-2026-76504 | KEV | 2% | NVD ↗ |
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