October 6, 2026

CVE Watchtower

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CVE-2026-20224NVD

Vulnerability Summary

A vulnerability in the web UI of Cisco Catalyst SD-WAN Manager, formerly SD-WAN vManage, could allow an unauthenticated, remote attacker to read arbitrary files that are stored in an affected system. The attacker does not need to have valid user credentials.

This vulnerability is due to improper handling of XML External Entity (XXE) entries when parsing an XML file. An attacker could exploit this vulnerability by sending a crafted request to an affected system. A successful exploit could allow the attacker to read arbitrary files that are stored in the affected system.
Severity Level
HIGH(8.6)
Published Date
May 14, 2026
Last Modified
Jun 29, 2026
Exploitation Status
No confirmed exploitation yet
EPSS Score (30-Day)
1.04%Probability
Root Weakness (CWE)
CWE-20: Improper Input Validation ↗
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required.
CVSS v3.1 Base Metrics — Score 8.6 (HIGH)
Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeChanged
ConfidentialityHigh
IntegrityNone
AvailabilityNone

Affected & Patched Versions

Affected Versions
  • Cisco Catalyst Sd-wan Manager < 20.9.9.1
  • Cisco Catalyst Sd-wan Manager >= 20.10 and < 20.12.5.4
  • Cisco Catalyst Sd-wan Manager >= 20.12.6 and < 20.12.6.2
  • Cisco Catalyst Sd-wan Manager >= 20.13 and < 20.15.4.4
  • Cisco Catalyst Sd-wan Manager >= 20.15.5 and < 20.15.5.2
  • Cisco Catalyst Sd-wan Manager >= 20.16 and < 20.18.2.2
  • Cisco Catalyst Sd-wan Manager >= 26.1 and < 26.1.1.1
  • Cisco Catalyst Sd-wan Manager
Patched Versions
  • Cisco Catalyst Sd-wan Manager 20.9.9.1
  • Cisco Catalyst Sd-wan Manager 20.12.5.4
  • Cisco Catalyst Sd-wan Manager 20.12.6.2
  • Cisco Catalyst Sd-wan Manager 20.15.4.4
  • Cisco Catalyst Sd-wan Manager 20.15.5.2
  • Cisco Catalyst Sd-wan Manager 20.18.2.2
  • Cisco Catalyst Sd-wan Manager 26.1.1.1
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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