Evidence dossier
CVE-2026-20133
A vulnerability in Cisco Catalyst SD-WAN Software could allow an unauthenticated, remote attacker to view sensitive information on an affected system.
Exploited in the wild (CISA KEV since Apr 20, 2026). NVD reports CVSS 3.1 7.5. Severity assessments differ within at least one CVSS version. EPSS estimates 31.4% exploit likelihood as of Aug 26, 2026.
As of Aug 27, 2026
Normalized restatement
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.
- State
- PUBLISHED
- Published
- Feb 25, 2026
- Updated
- Apr 22, 2026
- Evidence coverage
- 85%
Evidence chronology
What was known when
- Source dateSource date omittedFirst observed by CASCACISA-ADPOriginal evidence ↗
Record text: CISA ADP Vulnrichment
Inspect raw assertion
- Field
container- Value
- CISA ADP Vulnrichment
- Source dateSource date omittedFirst observed by CASCAciscoOriginal evidence ↗
Record text: 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.
Inspect raw assertion
- Field
container- Value
- 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.
- Source dateFirst observed by CASCACISA KEVOriginal evidence ↗
Exploitation cataloged: Cisco Catalyst SD-WAN Manager Exposure of Sensitive Information to an Unauthorized Actor Vulnerability
Inspect raw assertion
- Field
observed_exploitation- Value
- Cisco Catalyst SD-WAN Manager Exposure of Sensitive Information to an Unauthorized Actor Vulnerability
- Source dateFirst observed by CASCAFIRST EPSSOriginal evidence ↗
EPSS score: 31.35% probability · 98.14th percentile
Inspect raw assertion
- Field
model_probability- Value
- Probability 0.313530000000; percentile 0.981420000000
Assessments differ
Values are shown separately by source and CVSS version.
CISA KEV · catalog date Apr 20, 2026 · first observed Jul 19, 2026
FIRST EPSS · score date Aug 26, 2026 · 98.1th percentile · first observed Aug 26, 2026
NVD · CVSS 3.1 · first observed Jul 19, 2026 · values shown separately below
Evidence detail
Source limits and decisions
Why each evidence state has this value
casca-unknown-reasons-v1Eligible evidence is present for this bounded claim.
- Revision
- evidence-policy-v1.1.0
- Cutoff
- Aug 27, 2026
- Resolution
- None
Eligible evidence is present for this bounded claim.
- Revision
- evidence-policy-v1.1.0
- Cutoff
- Aug 27, 2026
- Resolution
- None
Eligible assertions materially conflict and remain visible side by side.
- Revision
- casca-direct-cvss-eligibility-v1
- Cutoff
- Aug 27, 2026
- Resolution
- Resolve conflict
The cited source assertion is retained while canonical product linkage remains open.
- Revision
- casca-factor-d-obligations-v1
- Cutoff
- Aug 27, 2026
- Resolution
- Resolve identity
Source comparison
Who said what
CISA ADP Vulnrichment
Inspect raw assertion
- Field
container- Value
- CISA ADP Vulnrichment
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.
Inspect raw assertion
- Field
container- Value
- 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.
Cisco Catalyst SD-WAN Manager Exposure of Sensitive Information to an Unauthorized Actor Vulnerability
Inspect raw assertion
- Field
observed_exploitation- Value
- Cisco Catalyst SD-WAN Manager Exposure of Sensitive Information to an Unauthorized Actor Vulnerability
31.35% probability · 98.14th percentile
Inspect raw assertion
- Field
model_probability- Value
- Probability 0.313530000000; percentile 0.981420000000
Applicability
Cited product scope
Grouped from 1 configuration nodes in this exact snapshot. Visual grouping is navigational; asset exposure and root cause require cited evidence.
Identity source boundaries
- Cpe dictionary1,775,266 records · observed through 2026-07-21T06:45:29.809Z
27d65b0f-b718-4b4f-bb79-c47c68d09dfa - Cpe match643,502 records · observed through 2026-07-21T08:13:17.697Z
955dae73-7302-438b-aee1-058d7cc5d48e
2 scope groups
Canonical linkage remains open; the cited source assertion is retained below.
Inspect raw assertion
[{"status": "affected", "version": "17.2.6"}, {"status": "affected", "version": "17.2.7"}, {"status": "affected", "version": "17.2.8"}, {"status": "affected", "version": "17.2.9"}, {"status": "affected", "version": "17.2.10"}, {"status": "affected", "version": "17.2.4"}, {"status": "affected", "version": "17.2.5"}, {"status": "affected", "version": "18.3.1.1"}, {"status": "affected", "version": "18.3.3.1"}, {"status": "affected", "version": "18.3.3"}, {"status": "affected", "version": "18.3.4"}, {"status": "affected", "version": "18.3.5"}, {"status": "affected", "version": "18.3.7"}, {"status": "affected", "version": "18.3.8"}, {"status": "affected", "version": "18.3.6.1"}, {"status": "affected", "version": "18.3.1"}, {"status": "affected", "version": "18.3.0"}, {"status": "affected", "version": "18.4.0.1"}, {"status": "affected", "version": "18.4.3"}, {"status": "affected", "version": "18.4.302"}, {"status": "affected", "version": "18.4.303"}, {"status": "affected", "version": "18.4.4"}, {"status": "affected", "version": "18.4.5"}, {"status": "affected", "version": "18.4.0"}, {"status": "affected", "version": "18.4.1"}, {"status": "affected", "version": "18.4.6"}, {"status": "affected", "version": "19.2.0"}, {"status": "affected", "version": "19.2.097"}, {"status": "affected", "version": "19.2.099"}, {"status": "affected", "version": "19.2.1"}, {"status": "affected", "version": "19.2.2"}, {"status": "affected", "version": "19.2.3"}, {"status": "affected", "version": "19.2.31"}, {"status": "affected", "version": "19.2.929"}, {"status": "affected", "version": "19.2.4"}, {"status": "affected", "version": "20.1.1.1"}, {"status": "affected", "version": "20.1.12"}, {"status": "affected", "version": "20.1.1"}, {"status": "affected", "version": "20.1.2"}, {"status": "affected", "version": "20.1.3"}, {"status": "affected", "version": "19.3.0"}, {"status": "affected", "version": "19.1.0"}, {"status": "affected", "version": "18.2.0"}, {"status": "affected", "version": "20.3.1"}, {"status": "affected", "version": "20.3.2"}, {"status": "affected", "version": "20.3.2.1"}, {"status": "affected", "version": "20.3.3"}, {"status": "affected", "version": "20.3.3.1"}, {"status": "affected", "version": "20.3.4"}, {"status": "affected", "version": "20.3.4.1"}, {"status": "affected", "version": "20.3.4.2"}, {"status": "affected", "version": "20.3.5"}, {"status": "affected", "version": "20.3.6"}, {"status": "affected", "version": "20.3.7"}, {"status": "affected", "version": "20.3.7.1"}, {"status": "affected", "version": "20.3.4.3"}, {"status": "affected", "version": "20.3.5.1"}, {"status": "affected", "version": "20.3.7.2"}, {"status": "affected", "version": "20.3.8"}, {"status": "affected", "version": "20.4.1"}, {"status": "affected", "version": "20.4.1.1"}, {"status": "affected", "version": "20.4.1.2"}, {"status": "affected", "version": "20.4.2"}, {"status": "affected", "version": "20.4.2.2"}, {"status": "affected", "version": "20.4.2.1"}, {"status": "affected", "version": "20.4.2.3"}, {"status": "affected", "version": "20.5.1"}, {"status": "affected", "version": "20.5.1.2"}, {"status": "affected", "version": "20.5.1.1"}, {"status": "affected", "version": "20.6.1"}, {"status": "affected", "version": "20.6.1.1"}, {"status": "affected", "version": "20.6.2.1"}, {"status": "affected", "version": "20.6.2.2"}, {"status": "affected", "version": "20.6.2"}, {"status": "affected", "version": "20.6.3"}, {"status": "affected", "version": "20.6.3.1"}, {"status": "affected", "version": "20.6.4"}, {"status": "affected", "version": "20.6.5"}, {"status": "affected", "version": "20.6.5.1"}, {"status": "affected", "version": "20.6.5.3"}, {"status": "affected", "version": "20.6.1.2"}, {"status": "affected", "version": "20.6.3.2"}, {"status": "affected", "version": "20.6.4.1"}, {"status": "affected", "version": "20.6.5.2"}, {"status": "affected", "version": "20.6.5.4"}, {"status": "affected", "version": "20.6.3.3"}, {"status": "affected", "version": "20.6.4.2"}, {"status": "affected", "version": "20.6.3.0.45"}, {"status": "affected", "version": "20.6.3.0.46"}, {"status": "affected", "version": "20.6.3.0.47"}, {"status": "affected", "version": "20.6.3.4"}, {"status": "affected", "version": "20.6.4.0.21"}, {"status": "affected", "version": "20.6.5.1.10"}, {"status": "affected", "version": "20.6.5.1.11"}, {"status": "affected", "version": "20.6.5.1.7"}, {"status": "affected", "version": "20.6.5.1.9"}, {"status": "affected", "version": "20.6.5.2.4"}, {"status": "affected", "version": "20.6.5.5"}, {"status": "affected", "version": "20.6.5.2.8"}, {"status": "affected", "version": "20.6.5.1.13"}, {"status": "affected", "version": "20.6.6"}, {"status": "affected", "version": "20.6.7"}, {"status": "affected", "version": "20.6.8"}, {"status": "affected", "version": "20.7.1"}, {"status": "affected", "version": "20.7.1.1"}, {"status": "affected", "version": "20.7.2"}, {"status": "affected", "version": "20.8.1"}, {"status": "affected", "version": "20.9.1"}, {"status": "affected", "version": "20.9.2"}, {"status": "affected", "version": "20.9.2.1"}, {"status": "affected", "version": "20.9.3"}, {"status": "affected", "version": "20.9.3.1"}, {"status": "affected", "version": "20.9.2.3"}, {"status": "affected", "version": "20.9.3.0.12"}, {"status": "affected", "version": "20.9.3.0.16"}, {"status": "affected", "version": "20.9.3.0.17"}, {"status": "affected", "version": "20.9.3.0.18"}, {"status": "affected", "version": "20.9.3.0.20"}, {"status": "affected", "version": "20.9.3.0.21"}, {"status": "affected", "version": "20.9.3.2"}, {"status": "affected", "version": "20.9.3.2_LI_Images"}, {"status": "affected", "version": "20.9.4"}, {"status": "affected", "version": "20.9.4_LI_Images"}, {"status": "affected", "version": "20.9.3.0.23"}, {"status": "affected", "version": "20.9.4.1"}, {"status": "affected", "version": "20.9.5"}, {"status": "affected", "version": "20.9.5.1"}, {"status": "affected", "version": "20.9.5.2"}, {"status": "affected", "version": "20.9.6"}, {"status": "affected", "version": "20.9.5.3"}, {"status": "affected", "version": "20.9.7"}, {"status": "affected", "version": "20.9.7.1"}, {"status": "affected", "version": "20.9.8"}, {"status": "affected", "version": "20.10.1"}, {"status": "affected", "version": "20.10.1.1"}, {"status": "affected", "version": "20.10.1.2"}, {"status": "affected", "version": "20.11.1"}, {"status": "affected", "version": "20.11.1.1"}, {"status": "affected", "version": "20.11.1.2"}, {"status": "affected", "version": "20.12.1"}, {"status": "affected", "version": "20.12.1_LI_Images"}, {"status": "affected", "version": "20.12.2"}, {"status": "affected", "version": "20.12.3"}, {"status": "affected", "version": "20.12.3.1"}, {"status": "affected", "version": "20.12.4"}, {"status": "affected", "version": "20.12.4.1"}, {"status": "affected", "version": "20.12.5"}, {"status": "affected", "version": "20.12.5.1"}, {"status": "affected", "version": "20.12.5.2"}, {"status": "affected", "version": "20.12.6"}, {"status": "affected", "version": "20.13.1"}, {"status": "affected", "version": "20.14.1"}, {"status": "affected", "version": "20.15.1"}, {"status": "affected", "version": "20.15.2"}, {"status": "affected", "version": "20.15.3"}, {"status": "affected", "version": "20.15.3.1"}, {"status": "affected", "version": "20.15.4"}, {"status": "affected", "version": "20.15.4.1"}, {"status": "affected", "version": "20.16.1"}, {"status": "affected", "version": "20.18.1"}, {"status": "affected", "version": "20.18.2"}]product-7d14d24908e295d99b26952868bcdd8b679a703f05b4aac134d1f85c620f6f52Linked exactInspect raw assertions
cpe:2.3:a:cisco:catalyst_sd-wan_manager:*:*:*:*:*:*:*:*- Official link
- Linked exact
- Role
- Vulnerable target
- Configuration
- 0 · node/0 · match 3
- Logic
- OR
- Version bounds
- from including 20.16; through excluding 20.18.2.1
- Match ID
b94e1dc2-5da5-4238-8040-6d524ddeaa4f
cpe:2.3:a:cisco:catalyst_sd-wan_manager:20.12.6:*:*:*:*:*:*:*- Official link
- Linked exact
- Role
- Vulnerable target
- Configuration
- 0 · node/0 · match 4
- Logic
- OR
- Version bounds
- No explicit bounds
- Match ID
f5b6e170-73b8-4838-93b4-ad258f3bca7c
cpe:2.3:a:cisco:catalyst_sd-wan_manager:*:*:*:*:*:*:*:*- Official link
- Linked exact
- Role
- Vulnerable target
- Configuration
- 0 · node/0 · match 1
- Logic
- OR
- Version bounds
- from including 20.10; through excluding 20.12.5.3
- Match ID
adab32b5-239d-4dc0-bf30-a6d72acb3710
cpe:2.3:a:cisco:catalyst_sd-wan_manager:*:*:*:*:*:*:*:*- Official link
- Linked exact
- Role
- Vulnerable target
- Configuration
- 0 · node/0 · match 2
- Logic
- OR
- Version bounds
- from including 20.13; through excluding 20.15.4.2
- Match ID
d284ea84-6c27-4a9c-bda2-d1c5bf1f2356
cpe:2.3:a:cisco:catalyst_sd-wan_manager:*:*:*:*:*:*:*:*- Official link
- Linked exact
- Role
- Vulnerable target
- Configuration
- 0 · node/0 · match 0
- Logic
- OR
- Version bounds
- through excluding 20.9.8.2
- Match ID
0388bd67-c1ad-4e47-8b1a-22ee1634190e
Affected-product evidence
Accepted scope and product mapping
1 canonical links · 1 source-reported links
vendor-0774b265c0e837e737aaf99ed0f2450c048e61f34267ca59d8623878b839334e · product-7d14d24908e295d99b26952868bcdd8b679a703f05b4aac134d1f85c620f6f52
- Source class
- Nvd cpe vulnerable target
- Assertions
- 5
- Mapping revision
- cpe23-exact-mapping-v1
- Observed cutoff
- Aug 27, 2026
Retained assertion IDs
2b7b405b-df1f-48dd-84cf-22c28e2234c56b72c355-56eb-4440-b45f-116703a3dccd91b13e7f-2db8-424b-958e-0771db17b2ddce06dca3-fd83-486a-b1f3-8b8ccc413a1ccf2f4d81-3cc6-4685-b64d-615f6ad00288Canonical linkage remains open; the cited source assertion is retained below.
Vendor specified only by source · Product specified only by source
- Source class
- Direct cve affected
- Assertions
- 1
- Mapping revision
- cpe23-exact-mapping-v1
- Observed cutoff
- Aug 27, 2026
Retained assertion IDs
41011094-18da-4333-a1fe-50545a3183e9Assessments
CVSS by origin
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:NCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:NDirect CVE/CNA normalized decisions
cisco
CVSS 3.1 · Primary · Original assertion · rank 1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N- Validation
- Valid match
- Recomputed
- 6.5
- Decision reason
- Evidence supported
- Policy
- casca-direct-cvss-eligibility-v1
Assessments are retained side by side under closed precedence. Cascade never averages CVSS.
Evidence boundaries
- KEV membership is authoritative for the catalog, not proof of exposure in any environment.
- EPSS is a dated model probability and not an individual-environment prediction.
- Affected or fixed status applies only to the exact cited product and version scope; remaining scope stays source-scoped.
- NVD-carried upstream facts remain derivative; independent corroboration requires a separately authored source.
- Only NVD metrics validated under the generation-bound calculator are Public Priority eligible; direct CVE record metrics remain display-only.
- NVD CVSS source eligibility is closed: NVD-authored, exact record-source, or registered same-CVE container origin; unmapped sources remain display-only.
- Core replay supports the active and immediately prior generation; retrospective valid-at replay is deferred.
- OSV aggregation and OSV-converted NVD material are not independent corroboration.
- Red Hat facts are vendor assertions for the exact supplied products.
- Nonmembership and not-yet-observed states are not proof of safety.