CVE-2025-20140 (GCVE-0-2025-20140)

Vulnerability from cvelistv5 – Published: 2025-05-07 17:36 – Updated: 2025-05-07 17:51
VLAI?
Summary
A vulnerability in the Wireless Network Control daemon (wncd) of Cisco IOS XE Software for Wireless LAN Controllers (WLCs) could allow an unauthenticated, adjacent wireless attacker to cause a denial of service (DoS) condition. This vulnerability is due to improper memory management. An attacker could exploit this vulnerability by sending a series of IPv6 network requests from an associated wireless IPv6 client to an affected device. To associate a client to a device, an attacker may first need to authenticate to the network, or associate freely in the case of a configured open network. A successful exploit could allow the attacker to cause the wncd process to consume available memory and eventually cause the device to stop responding, resulting in a DoS condition.
Severity ?
7.4 (High)
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
CWE
  • CWE-789 - Uncontrolled Memory Allocation
Assigner
References
Impacted products
Vendor Product Version
Cisco Cisco IOS XE Software Affected: 16.4.1
Affected: 16.4.2
Affected: 16.4.3
Affected: 16.5.1
Affected: 16.5.1a
Affected: 16.5.1b
Affected: 16.5.2
Affected: 16.5.3
Affected: 16.6.1
Affected: 16.6.2
Affected: 16.6.3
Affected: 16.6.4
Affected: 16.6.5
Affected: 16.6.4a
Affected: 16.6.5a
Affected: 16.6.6
Affected: 16.6.7
Affected: 16.6.8
Affected: 16.6.9
Affected: 16.6.10
Affected: 16.7.1
Affected: 16.7.1a
Affected: 16.7.1b
Affected: 16.7.2
Affected: 16.7.3
Affected: 16.7.4
Affected: 16.8.1
Affected: 16.8.1a
Affected: 16.8.1b
Affected: 16.8.1s
Affected: 16.8.1c
Affected: 16.8.1d
Affected: 16.8.2
Affected: 16.8.1e
Affected: 16.8.3
Affected: 16.9.1
Affected: 16.9.2
Affected: 16.9.1a
Affected: 16.9.1b
Affected: 16.9.1s
Affected: 16.9.3
Affected: 16.9.4
Affected: 16.9.3a
Affected: 16.9.5
Affected: 16.9.5f
Affected: 16.9.6
Affected: 16.9.7
Affected: 16.9.8
Affected: 16.10.1
Affected: 16.10.1a
Affected: 16.10.1b
Affected: 16.10.1s
Affected: 16.10.1c
Affected: 16.10.1e
Affected: 16.10.1d
Affected: 16.10.2
Affected: 16.10.1f
Affected: 16.10.1g
Affected: 16.10.3
Affected: 16.11.1
Affected: 16.11.1a
Affected: 16.11.1b
Affected: 16.11.2
Affected: 16.11.1s
Affected: 16.12.1
Affected: 16.12.1s
Affected: 16.12.1a
Affected: 16.12.1c
Affected: 16.12.1w
Affected: 16.12.2
Affected: 16.12.1y
Affected: 16.12.2a
Affected: 16.12.3
Affected: 16.12.8
Affected: 16.12.2s
Affected: 16.12.1x
Affected: 16.12.1t
Affected: 16.12.4
Affected: 16.12.3s
Affected: 16.12.3a
Affected: 16.12.4a
Affected: 16.12.5
Affected: 16.12.6
Affected: 16.12.1z1
Affected: 16.12.5a
Affected: 16.12.5b
Affected: 16.12.1z2
Affected: 16.12.6a
Affected: 16.12.7
Affected: 16.12.9
Affected: 16.12.10
Affected: 16.12.10a
Affected: 16.12.11
Affected: 16.12.12
Affected: 17.1.1
Affected: 17.1.1a
Affected: 17.1.1s
Affected: 17.1.1t
Affected: 17.1.3
Affected: 17.2.1
Affected: 17.2.1r
Affected: 17.2.1a
Affected: 17.2.1v
Affected: 17.2.2
Affected: 17.2.3
Affected: 17.3.1
Affected: 17.3.2
Affected: 17.3.3
Affected: 17.3.1a
Affected: 17.3.1w
Affected: 17.3.2a
Affected: 17.3.1x
Affected: 17.3.1z
Affected: 17.3.4
Affected: 17.3.5
Affected: 17.3.4a
Affected: 17.3.6
Affected: 17.3.4b
Affected: 17.3.4c
Affected: 17.3.5a
Affected: 17.3.5b
Affected: 17.3.7
Affected: 17.3.8
Affected: 17.3.8a
Affected: 17.4.1
Affected: 17.4.2
Affected: 17.4.1a
Affected: 17.4.1b
Affected: 17.4.2a
Affected: 17.5.1
Affected: 17.5.1a
Affected: 17.6.1
Affected: 17.6.2
Affected: 17.6.1w
Affected: 17.6.1a
Affected: 17.6.1x
Affected: 17.6.3
Affected: 17.6.1y
Affected: 17.6.1z
Affected: 17.6.3a
Affected: 17.6.4
Affected: 17.6.1z1
Affected: 17.6.5
Affected: 17.6.6
Affected: 17.6.6a
Affected: 17.6.5a
Affected: 17.6.7
Affected: 17.6.8
Affected: 17.6.8a
Affected: 17.7.1
Affected: 17.7.1a
Affected: 17.7.1b
Affected: 17.7.2
Affected: 17.10.1
Affected: 17.10.1a
Affected: 17.10.1b
Affected: 17.8.1
Affected: 17.8.1a
Affected: 17.9.1
Affected: 17.9.1w
Affected: 17.9.2
Affected: 17.9.1a
Affected: 17.9.1x
Affected: 17.9.1y
Affected: 17.9.3
Affected: 17.9.2a
Affected: 17.9.1x1
Affected: 17.9.3a
Affected: 17.9.4
Affected: 17.9.1y1
Affected: 17.9.5
Affected: 17.9.4a
Affected: 17.9.5a
Affected: 17.9.5b
Affected: 17.9.5e
Affected: 17.9.5f
Affected: 17.11.1
Affected: 17.11.1a
Affected: 17.12.1
Affected: 17.12.1w
Affected: 17.12.1a
Affected: 17.12.1x
Affected: 17.12.2
Affected: 17.12.3
Affected: 17.12.2a
Affected: 17.12.1y
Affected: 17.12.1z
Affected: 17.12.3a
Affected: 17.12.1z1
Affected: 17.13.1
Affected: 17.13.1a
Affected: 17.14.1
Affected: 17.14.1a
Affected: 17.11.99SW
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{\"version\": \"16.12.6a\", \"status\": \"affected\"}, {\"version\": \"16.12.7\", \"status\": \"affected\"}, {\"version\": \"16.12.9\", \"status\": \"affected\"}, {\"version\": \"16.12.10\", \"status\": \"affected\"}, {\"version\": \"16.12.10a\", \"status\": \"affected\"}, {\"version\": \"16.12.11\", \"status\": \"affected\"}, {\"version\": \"16.12.12\", \"status\": \"affected\"}, {\"version\": \"17.1.1\", \"status\": \"affected\"}, {\"version\": \"17.1.1a\", \"status\": \"affected\"}, {\"version\": \"17.1.1s\", \"status\": \"affected\"}, {\"version\": \"17.1.1t\", \"status\": \"affected\"}, {\"version\": \"17.1.3\", \"status\": \"affected\"}, {\"version\": \"17.2.1\", \"status\": \"affected\"}, {\"version\": \"17.2.1r\", \"status\": \"affected\"}, {\"version\": \"17.2.1a\", \"status\": \"affected\"}, {\"version\": \"17.2.1v\", \"status\": \"affected\"}, {\"version\": \"17.2.2\", \"status\": \"affected\"}, {\"version\": \"17.2.3\", \"status\": \"affected\"}, {\"version\": \"17.3.1\", \"status\": \"affected\"}, {\"version\": \"17.3.2\", \"status\": \"affected\"}, {\"version\": \"17.3.3\", \"status\": \"affected\"}, {\"version\": \"17.3.1a\", \"status\": \"affected\"}, {\"version\": \"17.3.1w\", \"status\": \"affected\"}, {\"version\": \"17.3.2a\", \"status\": \"affected\"}, {\"version\": \"17.3.1x\", \"status\": \"affected\"}, {\"version\": \"17.3.1z\", \"status\": \"affected\"}, {\"version\": \"17.3.4\", \"status\": \"affected\"}, {\"version\": \"17.3.5\", \"status\": \"affected\"}, {\"version\": \"17.3.4a\", \"status\": \"affected\"}, {\"version\": \"17.3.6\", \"status\": \"affected\"}, {\"version\": \"17.3.4b\", \"status\": \"affected\"}, {\"version\": \"17.3.4c\", \"status\": \"affected\"}, {\"version\": \"17.3.5a\", \"status\": \"affected\"}, {\"version\": \"17.3.5b\", \"status\": \"affected\"}, {\"version\": \"17.3.7\", \"status\": \"affected\"}, {\"version\": \"17.3.8\", \"status\": \"affected\"}, {\"version\": \"17.3.8a\", \"status\": \"affected\"}, {\"version\": \"17.4.1\", \"status\": \"affected\"}, {\"version\": \"17.4.2\", \"status\": \"affected\"}, {\"version\": \"17.4.1a\", \"status\": \"affected\"}, {\"version\": \"17.4.1b\", \"status\": \"affected\"}, {\"version\": \"17.4.2a\", \"status\": \"affected\"}, {\"version\": \"17.5.1\", \"status\": \"affected\"}, {\"version\": \"17.5.1a\", \"status\": \"affected\"}, {\"version\": \"17.6.1\", \"status\": \"affected\"}, {\"version\": \"17.6.2\", \"status\": \"affected\"}, {\"version\": \"17.6.1w\", \"status\": \"affected\"}, {\"version\": \"17.6.1a\", \"status\": \"affected\"}, {\"version\": \"17.6.1x\", \"status\": \"affected\"}, {\"version\": \"17.6.3\", \"status\": \"affected\"}, {\"version\": \"17.6.1y\", \"status\": \"affected\"}, {\"version\": \"17.6.1z\", \"status\": \"affected\"}, {\"version\": \"17.6.3a\", \"status\": \"affected\"}, {\"version\": \"17.6.4\", \"status\": \"affected\"}, {\"version\": \"17.6.1z1\", \"status\": \"affected\"}, {\"version\": \"17.6.5\", \"status\": \"affected\"}, {\"version\": \"17.6.6\", \"status\": \"affected\"}, {\"version\": \"17.6.6a\", \"status\": \"affected\"}, {\"version\": \"17.6.5a\", \"status\": \"affected\"}, {\"version\": \"17.6.7\", \"status\": \"affected\"}, {\"version\": \"17.6.8\", \"status\": \"affected\"}, {\"version\": \"17.6.8a\", \"status\": \"affected\"}, {\"version\": \"17.7.1\", \"status\": \"affected\"}, {\"version\": \"17.7.1a\", \"status\": \"affected\"}, {\"version\": \"17.7.1b\", \"status\": \"affected\"}, {\"version\": \"17.7.2\", \"status\": \"affected\"}, {\"version\": \"17.10.1\", \"status\": \"affected\"}, {\"version\": \"17.10.1a\", \"status\": \"affected\"}, {\"version\": \"17.10.1b\", \"status\": \"affected\"}, {\"version\": \"17.8.1\", \"status\": \"affected\"}, {\"version\": \"17.8.1a\", \"status\": \"affected\"}, {\"version\": \"17.9.1\", \"status\": \"affected\"}, {\"version\": \"17.9.1w\", \"status\": \"affected\"}, {\"version\": \"17.9.2\", \"status\": \"affected\"}, {\"version\": \"17.9.1a\", \"status\": \"affected\"}, {\"version\": \"17.9.1x\", \"status\": \"affected\"}, {\"version\": \"17.9.1y\", \"status\": \"affected\"}, {\"version\": \"17.9.3\", \"status\": \"affected\"}, {\"version\": \"17.9.2a\", \"status\": \"affected\"}, {\"version\": \"17.9.1x1\", \"status\": \"affected\"}, {\"version\": \"17.9.3a\", \"status\": \"affected\"}, {\"version\": \"17.9.4\", \"status\": \"affected\"}, {\"version\": \"17.9.1y1\", \"status\": \"affected\"}, {\"version\": \"17.9.5\", \"status\": \"affected\"}, {\"version\": \"17.9.4a\", \"status\": \"affected\"}, {\"version\": \"17.9.5a\", \"status\": \"affected\"}, {\"version\": \"17.9.5b\", \"status\": \"affected\"}, {\"version\": \"17.9.5e\", \"status\": \"affected\"}, {\"version\": \"17.9.5f\", \"status\": \"affected\"}, {\"version\": \"17.11.1\", \"status\": \"affected\"}, {\"version\": \"17.11.1a\", \"status\": \"affected\"}, {\"version\": \"17.12.1\", \"status\": \"affected\"}, {\"version\": \"17.12.1w\", \"status\": \"affected\"}, {\"version\": \"17.12.1a\", \"status\": \"affected\"}, {\"version\": \"17.12.1x\", \"status\": \"affected\"}, {\"version\": \"17.12.2\", \"status\": \"affected\"}, {\"version\": \"17.12.3\", \"status\": \"affected\"}, {\"version\": \"17.12.2a\", \"status\": \"affected\"}, {\"version\": \"17.12.1y\", \"status\": \"affected\"}, {\"version\": \"17.12.1z\", \"status\": \"affected\"}, {\"version\": \"17.12.3a\", \"status\": \"affected\"}, {\"version\": \"17.12.1z1\", \"status\": \"affected\"}, {\"version\": \"17.13.1\", \"status\": \"affected\"}, {\"version\": \"17.13.1a\", \"status\": \"affected\"}, {\"version\": \"17.14.1\", \"status\": \"affected\"}, {\"version\": \"17.14.1a\", \"status\": \"affected\"}, {\"version\": \"17.11.99SW\", \"status\": \"affected\"}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"description\": \"Uncontrolled Memory Allocation\", \"type\": \"cwe\", \"cweId\": \"CWE-789\"}]}], \"references\": [{\"url\": \"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wlc-wncd-p6Gvt6HL\", \"name\": \"cisco-sa-wlc-wncd-p6Gvt6HL\"}], \"metrics\": [{\"format\": \"cvssV3_1\", \"cvssV3_1\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H\", \"baseScore\": 7.4, \"baseSeverity\": \"HIGH\", \"attackVector\": \"ADJACENT_NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"scope\": \"CHANGED\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"HIGH\"}}], \"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.\"}], \"source\": {\"advisory\": \"cisco-sa-wlc-wncd-p6Gvt6HL\", \"discovery\": \"EXTERNAL\", \"defects\": [\"CSCwj16556\"]}}, \"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2025-20140\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-05-07T17:51:06.503225Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-05-07T17:51:20.362Z\"}}]}",
      "cveMetadata": "{\"cveId\": \"CVE-2025-20140\", \"assignerOrgId\": \"d1c1063e-7a18-46af-9102-31f8928bc633\", \"state\": \"PUBLISHED\", \"assignerShortName\": \"cisco\", \"dateReserved\": \"2024-10-10T19:15:13.214Z\", \"datePublished\": \"2025-05-07T17:36:49.207Z\", \"dateUpdated\": \"2025-05-07T17:51:42.769Z\"}",
      "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.