What it is
CVE-2026-20133 is a vulnerability affecting Cisco Catalyst SD-WAN Manager. A vulnerability in Cisco Catalyst SD-WAN Software could allow an unauthenticated, remote attacker to view sensitive information on an affected...
Vulnerability report
Exploited in the wild
Confirmed confidence
In CISA KEV
CVE-2026-20133
Cisco Catalyst SD-WAN Manager
Cisco Catalyst SD-WAN Manager · 17.2.6
- Severity
- CVSS 6.5 · Medium
- Confidence
- Confirmed
- Exploit status
- Exploited in the wild
- EPSS
- 31.8%
- First observed
- —
- Last observed
- —
Decision summary
What security teams need to know first
Direct answers before the deeper technical record.
Is it exploited?
Yes. Previdian tracks this CVE as a known exploited vulnerability. Confidence is confirmed. Listed in CISA KEV. Also confirmed by third-party sources.
Who is affected?
Cisco Catalyst SD-WAN Manager 17.2.6.
What should we do?
Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
Overview
Cisco Catalyst SD-WAN Manager
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.
Vendor
Product
Affected
Status
Cisco
Affected
Cisco Catalyst SD-WAN Manager
17.2.6
17.2.7
17.2.8
17.2.9
17.2.10
17.2.4
17.2.5
18.3.1.1
18.3.3.1
18.3.3
18.3.4
18.3.5
18.3.7
18.3.8
18.3.6.1
18.3.1
18.3.0
18.4.0.1
18.4.3
18.4.302
18.4.303
18.4.4
18.4.5
18.4.0
18.4.1
18.4.6
19.2.0
19.2.097
19.2.099
19.2.1
19.2.2
19.2.3
19.2.31
19.2.929
19.2.4
20.1.1.1
20.1.12
20.1.1
20.1.2
20.1.3
19.3.0
19.1.0
18.2.0
20.3.1
20.3.2
20.3.2.1
20.3.3
20.3.3.1
20.3.4
20.3.4.1
20.3.4.2
20.3.5
20.3.6
20.3.7
20.3.7.1
20.3.4.3
20.3.5.1
20.3.7.2
20.3.8
20.4.1
20.4.1.1
20.4.1.2
20.4.2
20.4.2.2
20.4.2.1
20.4.2.3
20.5.1
20.5.1.2
20.5.1.1
20.6.1
20.6.1.1
20.6.2.1
20.6.2.2
20.6.2
20.6.3
20.6.3.1
20.6.4
20.6.5
20.6.5.1
20.6.5.3
20.6.1.2
20.6.3.2
20.6.4.1
20.6.5.2
20.6.5.4
20.6.3.3
20.6.4.2
20.6.3.0.45
20.6.3.0.46
20.6.3.0.47
20.6.3.4
20.6.4.0.21
20.6.5.1.10
20.6.5.1.11
20.6.5.1.7
20.6.5.1.9
20.6.5.2.4
20.6.5.5
20.6.5.2.8
20.6.5.1.13
20.6.6
20.6.7
20.6.8
20.7.1
20.7.1.1
20.7.2
20.8.1
20.9.1
20.9.2
20.9.2.1
20.9.3
20.9.3.1
20.9.2.3
20.9.3.0.12
20.9.3.0.16
20.9.3.0.17
20.9.3.0.18
20.9.3.0.20
20.9.3.0.21
20.9.3.2
20.9.3.2_LI_Images
20.9.4
20.9.4_LI_Images
20.9.3.0.23
20.9.4.1
20.9.5
20.9.5.1
20.9.5.2
20.9.6
20.9.5.3
20.9.7
20.9.7.1
20.9.8
20.10.1
20.10.1.1
20.10.1.2
20.11.1
20.11.1.1
20.11.1.2
20.12.1
20.12.1_LI_Images
20.12.2
20.12.3
20.12.3.1
20.12.4
20.12.4.1
20.12.5
20.12.5.1
20.12.5.2
20.12.6
20.13.1
20.14.1
20.15.1
20.15.2
20.15.3
20.15.3.1
20.15.4
20.15.4.1
20.16.1
20.18.1
20.18.2
Affected
- Published
- 25 Feb 2026
- Exploitation Reported
- 01 Jun 2026
- Attack vector
- Remote
- Complexity
- Low
- Privileges
- Low
- User interaction
- None
Tags
cisa
edge
CVE References
- CVE Record CVE.org · CVE Record https://www.cve.org/CVERecord?id=CVE-2026-20133
- cisco-sa-sdwan-authbp-qwCX8D4v sec.cloudapps.cisco.com · CVE Record https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurity...
Exploitation evidence
Why Previdian marks this CVE as exploited
Third-party attestation and first-party sensor observation are shown separately so teams can judge the evidence chain.
Exploited in the wild
CVE
A trusted third party reported exploitation.
Known exploited vulnerability sources
Per-source evidence links for KEV attestations are available through the Previdian Pro API.
Learn about Pro API access| Source | Added |
|---|---|
| CVE First | 2026-06-01 13:22 UTC |
| CISA | 2026-06-02 14:01 UTC |
Detection
Operational artifacts and observed signals
Make the evidence actionable in scanner, SOC, and edge-control workflows.
Observed signals
- Request targets
- User-Agents
- Callback hosts
- 0
- 0
- 0
Request targets and User-Agents available in Pro. Callback host details available in Enterprise.
Scanner coverage
No scanner integrations recorded yet.
Virtual patch status
No Previdian virtual patch is currently available. Future rules ship for ModSecurity, Cloudflare, and AWS WAF.
Learn about virtual patches →No detection artifacts or sensor request patterns are available for this CVE yet.
Check back as sensor telemetry and scanner integrations are updated.
Risk and context
Severity, weaknesses, and research context
CVSS v3.1
6.5
Medium
Potential damage if exploited. Separate from whether attackers are using it.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
EPSS
31.8%
Estimated chance of exploitation in the next 30 days. Previdian's warning comes from evidence, not this score.
Timeline
From disclosure to observed exploitation
-
14:01 UTC
Added to CISA KEV
Listed in the CISA Known Exploited Vulnerabilities catalog
-
13:22 UTC
Added to Previdian KEV Feed
High-confidence, third-party attested exploitation
-
16:13 UTC
CVE published
Vulnerability disclosed publicly
-
11:59 UTC
CVE ID reserved
Identifier reserved by the CNA
Pro API
Automate this intelligence
Confidence, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.
- Evidence confidence and provenance
- First-party sensor telemetry
- PoC and scanner references
- Affected versions and enrichment
- Automation-ready JSON delivery
GET /api/v2/pro/kevs/CVE-2026-20133
Free JSON includes basic KEV fields{
"cve_id": "CVE-2026-20133",
"confidence": "Confirmed",
"cvss_score": 6.5,
"cvss_estimated": false,
"epss_score": 0.31829,
"exploit_status": {
"exploited_in_the_wild": true,
"active_exploitation_observed": false
},
"sensor_telemetry": { "attempts": 0, "sensors": 0 }
}