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September 30, 2026

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CVE-2026-20133NVD

Vulnerability Summary

A vulnerability in Cisco Catalyst SD-WAN Software could allow an unauthenticated, remote attacker to view sensitive information on an affected system.

This vulnerability is due to insufficient file system restrictions. An authenticated attacker with netadmin privileges could exploit this vulnerability by accessing the vshell of an affected system. A successful exploit could allow the attacker to read sensitive information on the underlying operating system.
Severity Level
MEDIUM(6.5)
Published Date
Feb 25, 2026
Last Modified
Apr 22, 2026
Exploitation Status
ACTIVE
EPSS Score (30-Day)
1.89%Probability
Root Weakness (CWE)
CWE-200: Unknown/Unlisted Weakness ↗
Refer to the official MITRE database for detailed architectural specifications regarding this weakness.
CVSS v3.1 Base Metrics — Score 6.5 (MEDIUM)
Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityNone
AvailabilityNone

Affected & Patched Versions

Affected Versions
  • Cisco Catalyst Sd-wan Manager < 20.9.8.2
  • Cisco Catalyst Sd-wan Manager >= 20.10 and < 20.12.5.3
  • Cisco Catalyst Sd-wan Manager >= 20.13 and < 20.15.4.2
  • Cisco Catalyst Sd-wan Manager >= 20.16 and < 20.18.2.1
  • Cisco Catalyst Sd-wan Manager
Patched Versions
  • Cisco Catalyst Sd-wan Manager 20.9.8.2
  • Cisco Catalyst Sd-wan Manager 20.12.5.3
  • Cisco Catalyst Sd-wan Manager 20.15.4.2
  • Cisco Catalyst Sd-wan Manager 20.18.2.1
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🚫Ad-Free — Uninterrupted experience.
🎁7-Day Free Trial — Try Pro or Team, no card required.
📧Email Delivery — Threat intel straight to your inbox.
♾️Unlimited Vendors — Track your entire stack.
🚨All New CVEs — Be the first to know.
📈EPSS Spike Alerts — Catch rising risk before it peaks.
🎯Custom EPSS/CVSS — Filter noise, focus on risk.
🛡️Exploit Intel — A 2nd confirmed-exploit signal beyond KEV.
🐙GitHub Issues — Auto-tracked, no duplicates.
📬Weekly Digest — One clean summary, not inbox spam.
🏷️Watchlist Groups — Tag alerts by team (Infra/AppSec/SOC).
💬Webhooks — Slack & Teams integration.
🔀Smart Routing — Critical alerts to one channel, rest to another.
🚫Ad-Free — Uninterrupted experience.

External References