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Apexward Pulse
Type Vulnerability

Cisco · Auth bypass

Cisco Catalyst SD-WAN Controller and Manager Authentication Bypass Vulnerability

4 sourcesCVE-2026-20127CVE-2026-20182CVE-2026-76504

At a glance

Medium
7-day window, from the last update
ActiveConfirmed in-the-wild exploitation
Evidence-weighted, not popularity
Signal

Actively exploited in the wild — prioritise confirming exposure.

Why Medium

Medium rather than High: exposure is scored at a default because we cannot see your systems or suppliers. If you run or depend on Cisco Catalyst SD-WAN Manager, treat it as High.

Briefing

  • Organisations using Cisco Catalyst SD-WAN Controller and Manager should assess their exposure to CVE-2026-20127.
  • The probability of exploitation for CVE-2026-20127 is high, with an estimated ~89.3% chance of attack in 30 days as of 2026-10-29.

Questions to ask IT

  • Do we run Cisco Catalyst SD-WAN Manager, Cisco Sd-wan Vbond Orchestrator and Cisco Sd-wan Vsmart Controller, and which versions?
  • Is any of it reachable from the internet?
  • Have we checked whether it has already been used against us?
  • If it is not yet patched, what mitigation is in place, and will the fix be done by 12 Nov?

Next steps

  1. Confirm exposure and remediation status for affected products

Summary

  • A newly identified APT group, UAT-11473, was observed exploiting CVE-2026-20127, an authentication-bypass flaw in Cisco Catalyst SD-WAN Controller and Manager.
  • CVE-2026-20127 is confirmed as exploited in the wild according to the US known-exploited catalogue.
  • CVE-2026-20127 has an estimated ~89.3% chance of attack in 30 days as of 2026-10-29, according to an estimated attack likelihood probability signal.

Products and services involved

7 reports

Part of Multiple authentication bypass vulnerabilities disclosed

All 7 reports in this story

Same event, different frames

Distinct often headline the same incident differently.

Pulse

Last checked 3d ago · Recheck overdue since 6 Nov 2026, 14:38 UK time · 3 quiet checks collapsed

Update
5 Nov 2026, 14:38 UK time · 3d ago

held at 89.3%; ranking metadata was updated.

Listed on the — prioritise confirming exposure and patching.

EscalationDe-escalationCritical / liveWhat these mean
Drag to pan · Ctrl / ⌘ + scroll or pinch to zoom11 events

2 quiet checks hidden.

Sources

How we know

Statements extracted from sources. Higher confidence means stronger corroboration.

  • ClaimedHeadline60% confidence

    Cisco Catalyst SD-WAN Controller and Manager Authentication Bypass Vulnerability

  • ProbableSummary fact75% confidence

    A newly identified advanced persistent threat (APT) group tracked as UAT-11473 was observed exploiting CVE-2026-20127, an authentication-bypass flaw in

  • ConfirmedCVE identifier95% confidence

    Event involves CVE-2026-20127

  • ConfirmedKnown-exploited catalogue98% confidence

    CVE-2026-20127 is confirmed as exploited in the wild (US known-exploited catalogue)

  • ConfirmedEstimated attack likelihood95% confidence

    CVE-2026-20127 has an estimated ~89.3% chance of attack in 30 days (99.8th percentile) as of 2026-10-29 — probability signal, not confirmed exploitation