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Type Vulnerability

Arubanetworks Sd-wan

Cisco Catalyst SD-WAN Manager Incorrect Use of Privileged APIs Vulnerability

1 sourceCVE-2026-20122

At a glance

High
Suggested 24-hour window, counted from the last update
ActiveConfirmed in-the-wild exploitation
Evidence-weighted, not popularity
Signal

Actively exploited in the wild — prioritise confirming exposure.

Why High

High rather than Critical: 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 Critical.

Briefing

  • Do not treat uncorroborated claims as confirmed breaches.

Questions to ask IT

  • Do we run Cisco Catalyst SD-WAN Manager, 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 still not patched, what mitigation is in place, and what is holding the fix up?

Next steps

  1. Confirm exposure, mitigation status and any service interruption risk.

Summary

  • An attacker could exploit this vulnerability by uploading a malicious file on the local file system. A successful exploit could allow the attacker to overwrite arbitrary files on the affected system and gain vmanage user privileges.
  • CVE-2026-20122 is listed in known-exploited catalogue (exploitation in the wild)
  • Authoritative catalogues report active exploitation of this vulnerability.

Why this matters in the UK

  • Known-exploited catalogue reports exploitation in the wild

Products and services involved

Pulse

Last checked 4d ago · Recheck overdue since 5 Nov 2026, 21:06 UK time · 3 quiet checks collapsed

Signal
21 Aug 2026, 03:43 UK time · 21 Aug

in the next 30 days first recorded at 24.6% (elevated likelihood signal, not confirmed exploitation).

Elevated — confirm exposure; this is a probability signal, not confirmed exploitation.

EscalationDe-escalationCritical / liveWhat these mean
Drag to pan · Ctrl / ⌘ + scroll or pinch to zoom6 events

2 quiet checks hidden.

Sources

How we know

Statements extracted from sources. Higher confidence means stronger corroboration.

  • ConfirmedHeadline90% confidence

    Cisco Catalyst SD-WAN Manager Incorrect Use of Privileged APIs Vulnerability

  • ConfirmedSummary fact75% confidence

    Cisco Catalyst SD-WAN Manager contains an incorrect use of privileged APIs vulnerability due to improper file handling on the API interface of an affected system. An attacker could exploit this vulnerability by uploading a malicious file on the local file system. A successful exploit could allow the attacker to overwrite arbitrary files on the affected system and gain vmanage user privileges. Affects Cisco Catalyst SD-WAN Manger. Known ransomware campaign use: Unknown.

  • ConfirmedCVE identifier95% confidence

    Event involves CVE-2026-20122

  • ConfirmedKnown-exploited catalogue98% confidence

    CVE-2026-20122 is listed in known-exploited catalogue (exploitation in the wild)