CVE-2026-20151 (GCVE-0-2026-20151)
Vulnerability from cvelistv5 – Published: 2026-04-01 16:29 – Updated: 2026-04-02 03:56
VLAI?
Title
Cisco Smart Software Manager On-Prem Privilege Escalation Vulnerability
Summary
A vulnerability in the web interface of Cisco Smart Software Manager On-Prem (SSM On-Prem) could allow an authenticated, remote attacker to elevate privileges on an affected system.
This vulnerability is due to the improper transmission of sensitive user information. An attacker could exploit this vulnerability by sending a crafted message to an affected Cisco SSM On-Prem host and retrieving session credentials from subsequent status messages. A successful exploit could allow the attacker to elevate privileges on the affected system from low to administrative.
To exploit this vulnerability, the attacker must have valid credentials for a user account with at least the role of System User.
Note: This vulnerability exposes information only about users who logged in to the Cisco SSM On-Prem host using the web interface and who are currently logged in. SSH sessions are not affected.
Severity ?
7.3 (High)
CWE
- CWE-201 - Insertion of Sensitive Information Into Sent Data
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Cisco | Cisco Smart Software Manager On-Prem |
Affected:
7-202001
Affected: 8-202004 Affected: 8-202006 Affected: 8-202012 Affected: 8-202010 Affected: 8-202008 Affected: 9-202201 Affected: 8-202102 Affected: 8-202105 Affected: 8-202108 Affected: 8-202112 Affected: 8-202201 Affected: 8-202206 Affected: 8-202212 Affected: 8-202302 Affected: 8-202303 Affected: 8-202304 Affected: 8-202308 Affected: 8-202401 Affected: 8-202404 Affected: 9-202406 Affected: 9-202407 Affected: 9-202410 Affected: 9-202412 Affected: 9-202501 Affected: 9-202502 Affected: 9-202504 Affected: 9-202507 Affected: 9-202510 |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-20151",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-04-01T00:00:00+00:00",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-04-02T03:56:09.678Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unknown",
"product": "Cisco Smart Software Manager On-Prem",
"vendor": "Cisco",
"versions": [
{
"status": "affected",
"version": "7-202001"
},
{
"status": "affected",
"version": "8-202004"
},
{
"status": "affected",
"version": "8-202006"
},
{
"status": "affected",
"version": "8-202012"
},
{
"status": "affected",
"version": "8-202010"
},
{
"status": "affected",
"version": "8-202008"
},
{
"status": "affected",
"version": "9-202201"
},
{
"status": "affected",
"version": "8-202102"
},
{
"status": "affected",
"version": "8-202105"
},
{
"status": "affected",
"version": "8-202108"
},
{
"status": "affected",
"version": "8-202112"
},
{
"status": "affected",
"version": "8-202201"
},
{
"status": "affected",
"version": "8-202206"
},
{
"status": "affected",
"version": "8-202212"
},
{
"status": "affected",
"version": "8-202302"
},
{
"status": "affected",
"version": "8-202303"
},
{
"status": "affected",
"version": "8-202304"
},
{
"status": "affected",
"version": "8-202308"
},
{
"status": "affected",
"version": "8-202401"
},
{
"status": "affected",
"version": "8-202404"
},
{
"status": "affected",
"version": "9-202406"
},
{
"status": "affected",
"version": "9-202407"
},
{
"status": "affected",
"version": "9-202410"
},
{
"status": "affected",
"version": "9-202412"
},
{
"status": "affected",
"version": "9-202501"
},
{
"status": "affected",
"version": "9-202502"
},
{
"status": "affected",
"version": "9-202504"
},
{
"status": "affected",
"version": "9-202507"
},
{
"status": "affected",
"version": "9-202510"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "A vulnerability in the web interface of Cisco Smart Software Manager On-Prem (SSM On-Prem) could allow an authenticated, remote attacker to elevate privileges on an affected system.\r\n\r\nThis vulnerability is due to the improper transmission of sensitive user information. An attacker could exploit this vulnerability by sending a crafted message to an affected Cisco SSM On-Prem host and retrieving session credentials from subsequent status messages. A successful exploit could allow the attacker to elevate privileges on the affected system from low to administrative.\r\nTo exploit this vulnerability, the attacker must have valid credentials for a user account with at least the role of System User.\r\nNote: This vulnerability exposes information only about users who logged in to the Cisco SSM On-Prem host using the web interface and who are currently logged in. SSH sessions are not affected."
}
],
"exploits": [
{
"lang": "en",
"value": "The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.3,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N",
"version": "3.1"
},
"format": "cvssV3_1"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-201",
"description": "Insertion of Sensitive Information Into Sent Data",
"lang": "en",
"type": "cwe"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-04-01T16:29:13.496Z",
"orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
"shortName": "cisco"
},
"references": [
{
"name": "cisco-sa-cssm-priv-esc-xRAnOuO8",
"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cssm-priv-esc-xRAnOuO8"
}
],
"source": {
"advisory": "cisco-sa-cssm-priv-esc-xRAnOuO8",
"defects": [
"CSCwr86065"
],
"discovery": "INTERNAL"
},
"title": "Cisco Smart Software Manager On-Prem Privilege Escalation Vulnerability"
}
},
"cveMetadata": {
"assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
"assignerShortName": "cisco",
"cveId": "CVE-2026-20151",
"datePublished": "2026-04-01T16:29:13.496Z",
"dateReserved": "2025-10-08T11:59:15.385Z",
"dateUpdated": "2026-04-02T03:56:09.678Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"nvd": "{\"cve\":{\"id\":\"CVE-2026-20151\",\"sourceIdentifier\":\"psirt@cisco.com\",\"published\":\"2026-04-01T17:28:31.097\",\"lastModified\":\"2026-04-01T17:28:31.097\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"A vulnerability in the web interface of Cisco Smart Software Manager On-Prem (SSM On-Prem) could allow an authenticated, remote attacker to elevate privileges on an affected system.\\r\\n\\r\\nThis vulnerability is due to the improper transmission of sensitive user information. An attacker could exploit this vulnerability by sending a crafted message to an affected Cisco SSM On-Prem host and retrieving session credentials from subsequent status messages. A successful exploit could allow the attacker to elevate privileges on the affected system from low to administrative.\\r\\nTo exploit this vulnerability, the attacker must have valid credentials for a user account with at least the role of System User.\\r\\nNote: This vulnerability exposes information only about users who logged in to the Cisco SSM On-Prem host using the web interface and who are currently logged in. SSH sessions are not affected.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"psirt@cisco.com\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N\",\"baseScore\":7.3,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"REQUIRED\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":2.1,\"impactScore\":5.2}]},\"weaknesses\":[{\"source\":\"psirt@cisco.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-201\"}]}],\"references\":[{\"url\":\"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cssm-priv-esc-xRAnOuO8\",\"source\":\"psirt@cisco.com\"}]}}",
"vulnrichment": {
"containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-20151\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-04-01T18:10:22.544919Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-04-01T18:10:33.307Z\"}}], \"cna\": {\"title\": \"Cisco Smart Software Manager On-Prem Privilege Escalation Vulnerability\", \"source\": {\"defects\": [\"CSCwr86065\"], \"advisory\": \"cisco-sa-cssm-priv-esc-xRAnOuO8\", \"discovery\": \"INTERNAL\"}, \"metrics\": [{\"format\": \"cvssV3_1\", \"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 7.3, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"REQUIRED\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"NONE\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"HIGH\"}}], \"affected\": [{\"vendor\": \"Cisco\", \"product\": \"Cisco Smart Software Manager On-Prem\", \"versions\": [{\"status\": \"affected\", \"version\": \"7-202001\"}, {\"status\": \"affected\", \"version\": \"8-202004\"}, {\"status\": \"affected\", \"version\": \"8-202006\"}, {\"status\": \"affected\", \"version\": \"8-202012\"}, {\"status\": \"affected\", \"version\": \"8-202010\"}, {\"status\": \"affected\", \"version\": \"8-202008\"}, {\"status\": \"affected\", \"version\": \"9-202201\"}, {\"status\": \"affected\", \"version\": \"8-202102\"}, {\"status\": \"affected\", \"version\": \"8-202105\"}, {\"status\": \"affected\", \"version\": \"8-202108\"}, {\"status\": \"affected\", \"version\": \"8-202112\"}, {\"status\": \"affected\", \"version\": \"8-202201\"}, {\"status\": \"affected\", \"version\": \"8-202206\"}, {\"status\": \"affected\", \"version\": \"8-202212\"}, {\"status\": \"affected\", \"version\": \"8-202302\"}, {\"status\": \"affected\", \"version\": \"8-202303\"}, {\"status\": \"affected\", \"version\": \"8-202304\"}, {\"status\": \"affected\", \"version\": \"8-202308\"}, {\"status\": \"affected\", \"version\": \"8-202401\"}, {\"status\": \"affected\", \"version\": \"8-202404\"}, {\"status\": \"affected\", \"version\": \"9-202406\"}, {\"status\": \"affected\", \"version\": \"9-202407\"}, {\"status\": \"affected\", \"version\": \"9-202410\"}, {\"status\": \"affected\", \"version\": \"9-202412\"}, {\"status\": \"affected\", \"version\": \"9-202501\"}, {\"status\": \"affected\", \"version\": \"9-202502\"}, {\"status\": \"affected\", \"version\": \"9-202504\"}, {\"status\": \"affected\", \"version\": \"9-202507\"}, {\"status\": \"affected\", \"version\": \"9-202510\"}], \"defaultStatus\": \"unknown\"}], \"exploits\": [{\"lang\": \"en\", \"value\": \"The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.\"}], \"references\": [{\"url\": \"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cssm-priv-esc-xRAnOuO8\", \"name\": \"cisco-sa-cssm-priv-esc-xRAnOuO8\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"A vulnerability in the web interface of Cisco Smart Software Manager On-Prem (SSM On-Prem) could allow an authenticated, remote attacker to elevate privileges on an affected system.\\r\\n\\r\\nThis vulnerability is due to the improper transmission of sensitive user information. An attacker could exploit this vulnerability by sending a crafted message to an affected Cisco SSM On-Prem host and retrieving session credentials from subsequent status messages. A successful exploit could allow the attacker to elevate privileges on the affected system from low to administrative.\\r\\nTo exploit this vulnerability, the attacker must have valid credentials for a user account with at least the role of System User.\\r\\nNote: This vulnerability exposes information only about users who logged in to the Cisco SSM On-Prem host using the web interface and who are currently logged in. SSH sessions are not affected.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"cwe\", \"cweId\": \"CWE-201\", \"description\": \"Insertion of Sensitive Information Into Sent Data\"}]}], \"providerMetadata\": {\"orgId\": \"d1c1063e-7a18-46af-9102-31f8928bc633\", \"shortName\": \"cisco\", \"dateUpdated\": \"2026-04-01T16:29:13.496Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2026-20151\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-04-02T03:56:09.678Z\", \"dateReserved\": \"2025-10-08T11:59:15.385Z\", \"assignerOrgId\": \"d1c1063e-7a18-46af-9102-31f8928bc633\", \"datePublished\": \"2026-04-01T16:29:13.496Z\", \"assignerShortName\": \"cisco\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
Loading…
Loading…
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Loading…
Loading…