CriticalCVECISA — Known Exploited Vulnerabilities· 20 Apr 2026

CVE-2026-20133 — Cisco Catalyst SD-WAN Manager Exposure of Sensitive Information to an Unauthorized Actor Vulnerability

Severity: Critical · Kind: Vulnerability

What it is

AI offline placeholder summary for: Title: CVE-2026-20133 — Cisco Catalyst SD-WAN Manager Exposure of Sensitive Info.

Who this affects

AI summarisation is currently disabled — see the source link for the full upstream advisory.

What to do

Re-run summarisation from /admin/threats once ANTHROPIC_API_KEY is configured.

From the source

Cisco Catalyst SD-WAN Manager. Cisco Catalyst SD-WAN Manager contains an exposure of sensitive information to an unauthorized actor vulnerability that could allow remote attackers to view sensitive information on affected systems. Required action: Please adhere to CISA’s guidelines to assess exposure and mitigate risks associated with Cisco SD-WAN devices as outlines in CISA’s Emergency Directive 26-03 (URL listed below in Notes) and CISA’s “Hunt & Hardening Guidance for Cisco SD-WAN Devices (URL listed below in Notes). Adhere to the applicable BOD 22-01 guidance for cloud services or discontinue use of the product if mitigations are not available.

Vulnerability facts

CVE
CVE-2026-20133
On CISA KEV since
2026-04-20
Ransomware use
Unknown

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Plain-English summaries are AI-generated and reviewed for tone, not technical accuracy. For incident response, always rely on the original source linked above.