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Apexward Pulse
Type Vulnerability

Cisco

Cisco BroadWorks Improper Restriction of XML External Entity Reference Vulnerability

1 sourceCVE-2026-20320

At a glance

High
24-hour window, 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 Broadworks Application Delivery Platform, treat it as Critical.

Briefing

There is no written leader briefing for this story yet. These questions come from the facts we hold.

Questions to ask IT

  • Do we run Cisco Broadworks Application Delivery Platform, Cisco Broadworks Application Server, Cisco Broadworks Profile Server and 1 more, 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 11 Nov?

Next steps

  1. Confirm exposure and remediation status for affected products

Summary

  • Cisco BroadWorks contains an improper restriction of XML external entity reference vulnerability that could allow an unauthenticated, remote attacker to read sensitive configuration information on an affected system.
  • CVE-2026-20320 is confirmed as exploited in the wild (US known-exploited catalogue)
  • CVE-2026-20320 has an estimated ~0.4% chance of attack in 30 days (32.9th percentile) as of 2026-11-10 — probability signal, not confirmed exploitation
  • Authoritative catalogues report active exploitation of this vulnerability.

Products and services involved

Pulse

Last change 27m ago · Next recheck 11 Nov 2026, 03:32 UK time

  1. Story10 Nov 2026, 21:32 UK time · 27m ago

    Linked reporting from CISA (official authority).

    Read source (CISA Known Exploited Vulnerabilities)

1 entry so far. The timeline chart appears once this story has more history.

Sources

How we know

Statements extracted from sources. Higher confidence means stronger corroboration.

  • ConfirmedHeadline90% confidence

    Cisco BroadWorks Improper Restriction of XML External Entity Reference Vulnerability

  • ConfirmedSummary fact75% confidence

    Cisco BroadWorks contains an improper restriction of XML external entity reference vulnerability that could allow an unauthenticated, remote attacker to read sensitive configuration information on an affected system.

  • ConfirmedCVE identifier95% confidence

    Event involves CVE-2026-20320

  • ConfirmedKnown-exploited catalogue98% confidence

    CVE-2026-20320 is confirmed as exploited in the wild (US known-exploited catalogue)

  • ConfirmedEstimated attack likelihood95% confidence

    CVE-2026-20320 has an estimated ~0.4% chance of attack in 30 days (32.9th percentile) as of 2026-11-10 — probability signal, not confirmed exploitation