Exploitation evidence
Known exploited · CISA KEV listed
Added 2026-04-20. Ransomware campaign use: Unknown.
CISA 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.
CISA due date: 2026-04-23. This is the catalog’s deadline, not an assessment of your organization’s exposure.
KEV checked 13 Nov 2026, 00:20 Jerusalem · Original catalog ↗Reported products and versions
Cisco / Cisco Catalyst SD-WAN Manager
Default status: unknown
- affected: 20.1.12
- affected: 19.2.1
- affected: 18.4.4
- affected: 18.4.5
- affected: 20.1.1.1
- affected: 20.1.1
- affected: 19.3.0
- affected: 19.2.2
- affected: 19.2.099
- affected: 18.3.6
- affected: 18.3.7
- affected: 19.2.0
- affected: 18.3.8
- affected: 19.0.0
- affected: 19.1.0
- affected: 18.4.302
- affected: 18.4.303
- affected: 19.2.097
- affected: 19.2.098
- affected: 17.2.10
- affected: 18.3.6.1
- affected: 19.0.1a
- affected: 18.2.0
- affected: 18.4.3
- affected: 18.4.1
- affected: 17.2.8
- affected: 18.3.3.1
- affected: 18.4.0
- affected: 18.3.1
- affected: 17.2.6
- affected: 17.2.9
- affected: 18.3.4
- affected: 17.2.5
- affected: 18.3.1.1
- affected: 18.3.5
- affected: 18.4.0.1
- affected: 18.3.3
- affected: 17.2.7
- affected: 18.3.0
- affected: 19.2.3
- affected: 18.4.501_ES
- affected: 20.3.1
- affected: 20.1.2
- affected: 19.2.929
- affected: 19.2.31
- affected: 20.3.2
- affected: 19.2.32
- affected: 20.3.2.1
- affected: 20.3.2.1_927
- affected: 18.4.6
- affected: 20.3.2_928
- affected: 20.3.2_929
- affected: 20.4.1.0.1
- affected: 20.3.2.1_930
- affected: 19.2.4
- affected: 20.5.0.1.1
- affected: 20.4.1.1
- affected: 20.3.3
- affected: 19.2.4.0.1
- affected: 20.3.2_937
- affected: 20.5.1
- affected: 20.1.3
- affected: 20.3.3.0.4
- affected: 20.3.3.1.2
- affected: 20.3.3.1.1
- affected: 20.4.1.2
- affected: 20.3.3.0.2
- affected: 20.4.1.1.5
- affected: 20.4.1.0.02
- affected: 20.3.3.1.7
- affected: 20.3.3.1.5
- affected: 20.5.1.0.1
- affected: 20.3.3.1.10
- affected: 20.3.3.0.8
- affected: 20.4.2
- affected: 20.3.4
- affected: 20.3.3.0.14
- affected: 19.2.4.0.8
- affected: 19.2.4.0.9
- affected: 20.3.4.0.1
- affected: 20.3.2.0.5
- affected: 20.5.1.0.2
- affected: 20.6.1.1
- affected: 20.6.0.18.3
- affected: 20.3.2.0.6
- affected: 20.6.0.18.4
- affected: 20.4.2.0.2
- affected: 20.3.3.0.16
- affected: 20.6.1.0.1
- affected: 20.3.4.0.6
- affected: 20.7.1EFT2
- affected: 20.3.4.0.9
- affected: 20.3.4.0.11
- affected: 20.3.3.0.18
- affected: 20.6.2.1
- affected: 20.3.4.1
- affected: 20.4.2.1
- affected: 20.4.2.1.1
- affected: 20.3.4.1.1
- affected: 20.3.813
- affected: 20.3.4.0.19
- affected: 20.4.2.2.1
- affected: 20.5.1.2
- affected: 20.3.814
- affected: 20.4.2.2
- affected: 20.6.2.2
- affected: 20.3.4.2.1
- affected: 20.3.4.1.2
- affected: 20.3.4.0.20
- affected: 20.6.2.2.3
- affected: 20.4.2.2.2
- affected: 20.6.2.0.4
- affected: 20.3.4.0.24
- affected: 20.6.2.2.7
- affected: 20.3.4.2.2
- affected: 20.4.2.2.4
- affected: 20.3.5.0.8
- affected: 20.3.5.0.9
- affected: 20.3.5.0.7
- affected: 20.6.3.0.2
- affected: 20.9.1EFT2
- affected: 20.3.6
- affected: 20.3.7
- affected: 20.4.2.3
- affected: 20.3.5.1
- affected: 20.3.4.3
- affected: 20.3.3.2
- affected: 20.3.7.1
- affected: 20.3.4.0.25
- affected: 20.6.2.2.4
- affected: 20.6.1.2
- affected: 20.1.3.1
- affected: 20.6.5.1.4
- affected: 20.3.8
- affected: 20.12.501
- affected: 26.1.1
Fixes and workarounds
No explicit solution text in the downloaded CVE record. Consult the vendor advisory; unaffected version ranges are shown above as reported, not inferred as a patch recommendation.
Sources and related reporting
Observed change timeline
History begins when Egret first downloads each source. It is not the complete upstream CVE history.
12 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-12",
"epss": 0.08349,
"percentile": 0.95033
}10 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-10",
"epss": 0.08349,
"percentile": 0.95001
}09 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-09",
"epss": 0.08349,
"percentile": 0.94994
}08 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-08",
"epss": 0.08349,
"percentile": 0.94992
}07 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-07",
"epss": 0.08349,
"percentile": 0.94989
}06 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-06",
"epss": 0.08349,
"percentile": 0.94981
}06 Nov 2026, 06:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-05",
"epss": 0.08349,
"percentile": 0.94977
}04 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-04",
"epss": 0.08349,
"percentile": 0.94972
}03 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-03",
"epss": 0.07317,
"percentile": 0.9439
}03 Nov 2026, 12:20 Jerusalem · CVE Program record changed
Stored CNA snapshot at this observation.
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-20128",
"options": [
{
"Exploitation": "active"
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{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-02-25T00:00:00+00:00",
"version": "2.0.3"
},
"type": "ssvc"
}
},
{
"other": {
"content": {
"dateAdded": "2026-04-20",
"reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-20128"
},
"type": "kev"
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}
],
"providerMetadata": {
"dateUpdated": "2026-04-21T03:55:31.648Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
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"references": [
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"tags": [
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"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-20128"
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],
"timeline": [
{
"lang": "en",
"time": "2026-04-20T00:00:00.000Z",
"value": "CVE-2026-20128 added to CISA KEV"
}
],
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unknown",
"product": "Cisco Catalyst SD-WAN Manager",
"vendor": "Cisco",
"versions": [
{
"status": "affected",
"version": "20.1.12"
},
{
"status": "affected",
"version": "19.2.1"
},
{
"status": "affected",
"version": "18.4.4"
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{
"status": "affected",
"version": "18.4.5"
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{
"status": "affected",
"version": "20.1.1.1"
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{
"status": "affected",
"version": "20.1.1"
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{
"status": "affected",
"version": "19.3.0"
},
{
"status": "affected",
"version": "19.2.2"
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{
"status": "affected",
"version": "19.2.099"
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{
"status": "affected",
"version": "18.3.6"
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{
"status": "affected",
"version": "18.3.7"
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{
"status": "affected",
"version": "19.2.0"
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{
"status": "affected",
"version": "18.3.8"
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{
"status": "affected",
"version": "19.0.0"
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{
"status": "affected",
"version": "19.1.0"
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{
"status": "affected",
"version": "18.4.302"
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{
"status": "affected",
"version": "18.4.303"
},
{
"status": "affected",
"version": "19.2.097"
},
{
"status": "affected",
"version": "19.2.098"
},
{
"status": "affected",
"version": "17.2.10"
},
{
"status": "affected",
"version": "18.3.6.1"
},
{
"status": "affected",
"version": "19.0.1a"
},
{
"status": "affected",
"version": "18.2.0"
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{
"status": "affected",
"version": "18.4.3"
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{
"status": "affected",
"version": "18.4.1"
},
{
"status": "affected",
"version": "17.2.8"
},
{
"status": "affected",
"version": "18.3.3.1"
},
{
"status": "affected",
"version": "18.4.0"
},
{
"status": "affected",
"version": "18.3.1"
},
{
"status": "affected",
"version": "17.2.6"
},
{
"status": "affected",
"version": "17.2.9"
},
{
"status": "affected",
"version": "18.3.4"
},
{
"status": "affected",
"version": "17.2.5"
},
{
"status": "affected",
"version": "18.3.1.1"
},
{
"status": "affected",
"version": "18.3.5"
},
{
"status": "affected",
"version": "18.4.0.1"
},
{
"status": "affected",
"version": "18.3.3"
},
{
"status": "affected",
"version": "17.2.7"
},
{
"status": "affected",
"version": "18.3.0"
},
{
"status": "affected",
"version": "19.2.3"
},
{
"status": "affected",
"version": "18.4.501_ES"
},
{
"status": "affected",
"version": "20.3.1"
},
{
"status": "affected",
"version": "20.1.2"
},
{
"status": "affected",
"version": "19.2.929"
},
{
"status": "affected",
"version": "19.2.31"
},
{
"status": "affected",
"version": "20.3.2"
},
{
"status": "affected",
"version": "19.2.32"
},
{
"status": "affected",
"version": "20.3.2.1"
},
{
"status": "affected",
"version": "20.3.2.1_927"
},
{
"status": "affected",
"version": "18.4.6"
},
{
"status": "affected",
"version": "20.3.2_928"
},
{
"status": "affected",
"version": "20.3.2_929"
},
{
"status": "affected",
"version": "20.4.1.0.1"
},
{
"status": "affected",
"version": "20.3.2.1_930"
},
{
"status": "affected",
"version": "19.2.4"
},
{
"status": "affected",
"version": "20.5.0.1.1"
},
{
"status": "affected",
"version": "20.4.1.1"
},
{
"status": "affected",
"version": "20.3.3"
},
{
"status": "affected",
"version": "19.2.4.0.1"
},
{
"status": "affected",
"version": "20.3.2_937"
},
{
"status": "affected",
"version": "20.5.1"
},
{
"status": "affected",
"version": "20.1.3"
},
{
"status": "affected",
"version": "20.3.3.0.4"
},
{
"status": "affected",
"version": "20.3.3.1.2"
},
{
"status": "affected",
"version": "20.3.3.1.1"
},
{
"status": "affected",
"version": "20.4.1.2"
},
{
"status": "affected",
"version": "20.3.3.0.2"
},
{
"status": "affected",
"version": "20.4.1.1.5"
},
{
"status": "affected",
"version": "20.4.1.0.02"
},
{
"status": "affected",
"version": "20.3.3.1.7"
},
{
"status": "affected",
"version": "20.3.3.1.5"
},
{
"status": "affected",
"version": "20.5.1.0.1"
},
{
"status": "affected",
"version": "20.3.3.1.10"
},
{
"status": "affected",
"version": "20.3.3.0.8"
},
{
"status": "affected",
"version": "20.4.2"
},
{
"status": "affected",
"version": "20.3.4"
},
{
"status": "affected",
"version": "20.3.3.0.14"
},
{
"status": "affected",
"version": "19.2.4.0.8"
},
{
"status": "affected",
"version": "19.2.4.0.9"
},
{
"status": "affected",
"version": "20.3.4.0.1"
},
{
"status": "affected",
"version": "20.3.2.0.5"
},
{
"status": "affected",
"version": "20.5.1.0.2"
},
{
"status": "affected",
"version": "20.6.1.1"
},
{
"status": "affected",
"version": "20.6.0.18.3"
},
{
"status": "affected",
"version": "20.3.2.0.6"
},
{
"status": "affected",
"version": "20.6.0.18.4"
},
{
"status": "affected",
"version": "20.4.2.0.2"
},
{
"status": "affected",
"version": "20.3.3.0.16"
},
{
"status": "affected",
"version": "20.6.1.0.1"
},
{
"status": "affected",
"version": "20.3.4.0.6"
},
{
"status": "affected",
"version": "20.7.1EFT2"
},
{
"status": "affected",
"version": "20.3.4.0.9"
},
{
"status": "affected",
"version": "20.3.4.0.11"
},
{
"status": "affected",
"version": "20.3.3.0.18"
},
{
"status": "affected",
"version": "20.6.2.1"
},
{
"status": "affected",
"version": "20.3.4.1"
},
{
"status": "affected",
"version": "20.4.2.1"
},
{
"status": "affected",
"version": "20.4.2.1.1"
},
{
"status": "affected",
"version": "20.3.4.1.1"
},
{
"status": "affected",
"version": "20.3.813"
},
{
"status": "affected",
"version": "20.3.4.0.19"
},
{
"status": "affected",
"version": "20.4.2.2.1"
},
{
"status": "affected",
"version": "20.5.1.2"
},
{
"status": "affected",
"version": "20.3.814"
},
{
"status": "affected",
"version": "20.4.2.2"
},
{
"status": "affected",
"version": "20.6.2.2"
},
{
"status": "affected",
"version": "20.3.4.2.1"
},
{
"status": "affected",
"version": "20.3.4.1.2"
},
{
"status": "affected",
"version": "20.3.4.0.20"
},
{
"status": "affected",
"version": "20.6.2.2.3"
},
{
"status": "affected",
"version": "20.4.2.2.2"
},
{
"status": "affected",
"version": "20.6.2.0.4"
},
{
"status": "affected",
"version": "20.3.4.0.24"
},
{
"status": "affected",
"version": "20.6.2.2.7"
},
{
"status": "affected",
"version": "20.3.4.2.2"
},
{
"status": "affected",
"version": "20.4.2.2.4"
},
{
"status": "affected",
"version": "20.3.5.0.8"
},
{
"status": "affected",
"version": "20.3.5.0.9"
},
{
"status": "affected",
"version": "20.3.5.0.7"
},
{
"status": "affected",
"version": "20.6.3.0.2"
},
{
"status": "affected",
"version": "20.9.1EFT2"
},
{
"status": "affected",
"version": "20.3.6"
},
{
"status": "affected",
"version": "20.3.7"
},
{
"status": "affected",
"version": "20.4.2.3"
},
{
"status": "affected",
"version": "20.3.5.1"
},
{
"status": "affected",
"version": "20.3.4.3"
},
{
"status": "affected",
"version": "20.3.3.2"
},
{
"status": "affected",
"version": "20.3.7.1"
},
{
"status": "affected",
"version": "20.3.4.0.25"
},
{
"status": "affected",
"version": "20.6.2.2.4"
},
{
"status": "affected",
"version": "20.6.1.2"
},
{
"status": "affected",
"version": "20.1.3.1"
},
{
"status": "affected",
"version": "20.6.5.1.4"
},
{
"status": "affected",
"version": "20.3.8"
},
{
"status": "affected",
"version": "20.12.501"
},
{
"status": "affected",
"version": "26.1.1"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "A vulnerability in the Data Collection Agent (DCA) feature of Cisco Catalyst SD-WAN Manager could allow an unauthenticated, remote attacker to gain DCA user privileges on an affected system.\r\n\r\nThis vulnerability is due to the presence of a credential file for the DCA user on an affected system. An attacker could exploit this vulnerability by sending a crafted HTTP request and reading the file that contains the DCA password from that affected system. A successful exploit could allow the attacker to access another affected system and gain DCA user privileges.\r\nNote: Cisco Catalyst SD-WAN Manager releases 20.18 and later are not affected by this vulnerability."
}
],
"exploits": [
{
"lang": "en",
"value": "The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerabilities that are described in CVE-2026-20133, CVE-2026-20126, and CVE-2026-20129.\r\n\r\nIn March 2026, the Cisco PSIRT became aware of active exploitation of the vulnerabilities that are described in CVE-2026-20128 and CVE-2026-20122 only. The vulnerabilities that are described in the other CVEs in this advisory are not known to have been compromised. Cisco strongly recommends that customers upgrade to a fixed software release to remediate these vulnerabilities."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "HIGH",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H",
"version": "3.1"
},
"format": "cvssV3_1"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-257",
"description": "Storing Passwords in a Recoverable Format",
"lang": "en",
"type": "cwe"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-03-20T21:47:33.415Z",
"orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
"shortName": "cisco"
},
"references": [
{
"name": "cisco-sa-sdwan-authbp-qwCX8D4v",
"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-authbp-qwCX8D4v"
}
],
"source": {
"advisory": "cisco-sa-sdwan-authbp-qwCX8D4v",
"defects": [
"CSCws33585"
],
"discovery": "INTERNAL"
},
"title": "Cisco Catalyst SD-WAN Manager Information Disclosure Vulnerability"
}
},
"cveMetadata": {
"assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
"assignerShortName": "cisco",
"cveId": "CVE-2026-20128",
"datePublished": "2026-02-25T16:14:12.353Z",
"dateReserved": "2025-10-08T11:59:15.379Z",
"dateUpdated": "2026-04-21T03:55:31.648Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}03 Nov 2026, 02:22 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-02",
"epss": 0.07317,
"percentile": 0.94382
}03 Nov 2026, 02:22 Jerusalem · CISA KEV status changed
Stored KEV snapshot at this observation.
{
"cveID": "CVE-2026-20128",
"cwes": [
"CWE-257"
],
"dateAdded": "2026-04-20",
"dueDate": "2026-04-23",
"forensicTriage": "No",
"knownRansomwareCampaignUse": "Unknown",
"notes": "CISA Mitigation Instructions: https://www.cisa.gov/news-events/directives/ed-26-03-mitigate-vulnerabilities-cisco-sd-wan-systems ; https://www.cisa.gov/news-events/directives/supplemental-direction-ed-26-03-hunt-and-hardening-guidance-cisco-sd-wan-systems ; https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-authbp-qwCX8D4v ; https://nvd.nist.gov/vuln/detail/CVE-2026-20128",
"product": "Catalyst SD-WAN Manager",
"requiredAction": "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.",
"shortDescription": "Cisco Catalyst SD-WAN Manager contains a storing passwords in a recoverable format vulnerability that allows an authenticated, local attacker to gain DCA user privileges by accessing a credential file for the DCA user on the filesystem as a low-privileged user.",
"vendorProject": "Cisco",
"vulnerabilityName": "Cisco Catalyst SD-WAN Manager Storing Passwords in a Recoverable Format Vulnerability"
}