CVE-2025-20151 (GCVE-0-2025-20151)

Vulnerability from cvelistv5 – Published: 2025-05-07 17:18 – Updated: 2025-05-07 19:46
VLAI
Title
Cisco IOS and IOS XE Software SNMPv3 Configuration Restriction Vulnerability
Summary
A vulnerability in the implementation of the Simple Network Management Protocol Version 3 (SNMPv3) feature of Cisco IOS Software and Cisco IOS XE Software could allow an authenticated, remote attacker to poll an affected device using SNMP, even if the device is configured to deny SNMP traffic from an unauthorized source or the SNMPv3 username is removed from the configuration. This vulnerability exists because of the way that the SNMPv3 configuration is stored in the Cisco IOS Software and Cisco IOS XE Software startup configuration. An attacker could exploit this vulnerability by polling an affected device from a source address that should have been denied. A successful exploit could allow the attacker to perform SNMP operations from a source that should be denied. Note: The attacker has no control of the SNMPv3 configuration. To exploit this vulnerability, the attacker must have valid SNMPv3 user credentials. For more information, see the section of this advisory.
Severity
4.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
Vendor Product Version
Cisco Cisco IOS XE Catalyst SD-WAN Affected: 16.10.6
Affected: 16.12.3
Affected: 16.12.1
Affected: 16.12.1a
Affected: 16.12.4a
Affected: 16.12.2r
Affected: 16.12.1c
Affected: 16.10.4
Affected: 16.12.1b1
Affected: 16.10.5
Affected: 16.12.4
Affected: 16.10.3
Affected: 16.10.3a
Affected: 16.12.1b
Affected: 16.10.3b
Affected: 16.12.1d
Affected: 16.11.1s
Affected: 16.9.1
Affected: 16.11.1a
Affected: 16.11.1d
Affected: 16.9.2
Affected: 16.10.1
Affected: 16.11.1f
Affected: 16.9.4
Affected: 16.9.3
Affected: 16.10.2
Affected: 16.12.1e
Affected: 16.11.1b
Affected: 16.11.1
Affected: 16.12.5
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Advisory\"]}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2025-20151\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-05-07T18:56:21.184209Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-05-07T18:56:23.091Z\"}}], \"cna\": {\"title\": \"Cisco IOS and IOS XE Software SNMPv3 Configuration Restriction Vulnerability\", \"source\": {\"defects\": [\"CSCwi84832\"], \"advisory\": \"cisco-sa-snmpv3-qKEYvzsy\", \"discovery\": \"INTERNAL\"}, \"metrics\": [{\"format\": \"cvssV3_1\", \"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 4.3, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N\", \"integrityImpact\": \"LOW\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"NONE\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"NONE\"}}], \"affected\": [{\"vendor\": \"Cisco\", \"product\": \"Cisco IOS XE Catalyst SD-WAN\", \"versions\": [{\"status\": \"affected\", \"version\": \"16.10.6\"}, {\"status\": \"affected\", \"version\": \"16.12.3\"}, {\"status\": \"affected\", \"version\": \"16.12.1\"}, {\"status\": \"affected\", \"version\": \"16.12.1a\"}, {\"status\": \"affected\", \"version\": \"16.12.4a\"}, {\"status\": \"affected\", \"version\": \"16.12.2r\"}, {\"status\": \"affected\", \"version\": \"16.12.1c\"}, {\"status\": \"affected\", \"version\": \"16.10.4\"}, {\"status\": \"affected\", \"version\": \"16.12.1b1\"}, {\"status\": \"affected\", \"version\": \"16.10.5\"}, {\"status\": \"affected\", \"version\": \"16.12.4\"}, {\"status\": \"affected\", \"version\": \"16.10.3\"}, {\"status\": \"affected\", \"version\": \"16.10.3a\"}, {\"status\": \"affected\", \"version\": \"16.12.1b\"}, {\"status\": \"affected\", \"version\": \"16.10.3b\"}, {\"status\": \"affected\", \"version\": \"16.12.1d\"}, {\"status\": \"affected\", \"version\": \"16.11.1s\"}, {\"status\": \"affected\", \"version\": \"16.9.1\"}, {\"status\": \"affected\", \"version\": \"16.11.1a\"}, {\"status\": \"affected\", \"version\": \"16.11.1d\"}, {\"status\": \"affected\", \"version\": \"16.9.2\"}, {\"status\": \"affected\", \"version\": \"16.10.1\"}, {\"status\": \"affected\", \"version\": \"16.11.1f\"}, {\"status\": \"affected\", \"version\": \"16.9.4\"}, {\"status\": \"affected\", \"version\": \"16.9.3\"}, {\"status\": \"affected\", \"version\": \"16.10.2\"}, {\"status\": \"affected\", \"version\": \"16.12.1e\"}, {\"status\": \"affected\", \"version\": \"16.11.1b\"}, {\"status\": \"affected\", \"version\": \"16.11.1\"}, {\"status\": \"affected\", \"version\": \"16.12.5\"}], \"defaultStatus\": \"unknown\"}], \"exploits\": [{\"lang\": \"en\", \"value\": \"The Cisco Product Security Incident Response Team (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-snmpv3-qKEYvzsy\", \"name\": \"cisco-sa-snmpv3-qKEYvzsy\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"A vulnerability in the implementation of the Simple Network Management Protocol Version 3 (SNMPv3) feature of Cisco IOS Software and Cisco IOS XE Software could allow an authenticated, remote attacker to poll an affected device using SNMP, even if the device is configured to deny SNMP traffic from an unauthorized source or the SNMPv3 username is removed from the configuration.\\r\\n\\r\\nThis vulnerability exists because of the way that the SNMPv3 configuration is stored in the Cisco IOS Software and Cisco IOS XE Software startup configuration. An attacker could exploit this vulnerability by polling an affected device from a source address that should have been denied. A successful exploit could allow the attacker to perform SNMP operations from a source that should be denied.\\r\\nNote: The attacker has no control of the SNMPv3 configuration. To exploit this vulnerability, the attacker must have valid SNMPv3 user credentials.\\r\\nFor more information, see the  section of this advisory.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"cwe\", \"cweId\": \"CWE-16\", \"description\": \"Configuration\"}]}], \"providerMetadata\": {\"orgId\": \"d1c1063e-7a18-46af-9102-31f8928bc633\", \"shortName\": \"cisco\", \"dateUpdated\": \"2025-05-07T17:18:44.414Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2025-20151\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-05-07T19:46:24.894Z\", \"dateReserved\": \"2024-10-10T19:15:13.216Z\", \"assignerOrgId\": \"d1c1063e-7a18-46af-9102-31f8928bc633\", \"datePublished\": \"2025-05-07T17:18:44.414Z\", \"assignerShortName\": \"cisco\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

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.


Detection rules are retrieved from Rulezet.