Vulnerability

CVE-2026-20128

Cisco Catalyst SD-WAN Manager: storing passwords in a recoverable format

Most severe levelDEFCON 3 · Substantial risk

Official data

CVSS 3.1
7.5 · highCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
Weakness
CWE-257
EPSS
7.32% probability of exploitation in the next 30 days, higher than 94% of CVEs
CISA KEV catalogue
Yes, since 20 April 2026

Sources: NVD (CVSS, weakness, publication), FIRST (EPSS), CISA (KEV catalogue).
Data read on 25 October 2026.

Timeline

  1. 25 February 2026Published on NVD
  2. 20 April 2026Added to the CISA KEV catalogue
  3. 21 April 2026First in the DefenceLevel briefing

In DefenceLevel briefings3 days

  • 23 April 2026Still ongoingDEFCON 4
  • 22 April 2026Still ongoingDEFCON 4
  • 21 April 2026New in the last 24 hoursDEFCON 3

Last 12 months.

The full analysis is in the briefingThe full analysis is in your archive

Why it matters now, who is affected and what to do: every day at 05:00 UTC, for subscribers.Why it matters, who is affected and what to do, as in the daily briefing.

More exploited Cisco vulnerabilities

Official records: NVDCVE.org

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