CVE-2026-20311 (GCVE-0-2026-20311)

Vulnerability from cvelistv5 – Published: 2026-08-05 16:32 – Updated: 2026-08-05 17:45
VLAI
Title
Cisco IOS XE Software Web UI Denial of Service Vulnerability
Summary
A vulnerability in the web-based management interface of Cisco IOS XE Software could allow an authenticated, remote attacker with low privileges to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to insufficient error handling in the web-based management interface. An attacker could exploit this vulnerability by authenticating with a malformed certificate. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
Impacted products
Vendor Product Version
Cisco Cisco IOS XE Software Affected: 17.3.1
Affected: 17.3.1a
Affected: 17.3.2a
Affected: 17.3.1w
Affected: 17.3.2
Affected: 17.4.1
Affected: 17.4.1a
Affected: 17.3.1x
Affected: 17.3.3
Affected: 17.5.1
Affected: 17.4.1b
Affected: 17.3.1z
Affected: 17.4.2
Affected: 17.3.3a
Affected: 17.3.5
Affected: 17.3.4
Affected: 17.5.1a
Affected: 17.6.1
Affected: 17.3.4a
Affected: 17.6.1a
Affected: 17.7.1
Affected: 17.6.1x
Affected: 17.6.2
Affected: 17.3.4c
Affected: 17.4.2a
Affected: 17.3.4b
Affected: 17.7.1a
Affected: 17.8.1a
Affected: 17.6.3a
Affected: 17.6.3
Affected: 17.7.2
Affected: 17.7.1b
Affected: 17.9.1w
Affected: 17.3.5a
Affected: 17.6.1z
Affected: 17.8.1
Affected: 17.9.1
Affected: 17.6.4
Affected: 17.3.5b
Affected: 17.9.1a
Affected: 17.3.6
Affected: 17.10.1
Affected: 17.6.1z1
Affected: 17.10.1a
Affected: 17.9.2
Affected: 17.6.5
Affected: 17.9.1x
Affected: 17.9.1y
Affected: 17.3.7
Affected: 17.9.2a
Affected: 17.9.3
Affected: 17.11.1
Affected: 17.10.1b
Affected: 17.6.6
Affected: 17.9.1x1
Affected: 17.11.1a
Affected: 17.9.3a
Affected: 17.12.1
Affected: 17.3.8
Affected: 17.9.4
Affected: 17.12.1w
Affected: 17.9.1y1
Affected: 17.12.1a
Affected: 17.9.5
Affected: 17.13.1
Affected: 17.12.1x
Affected: 17.12.2
Affected: 17.14.1
Affected: 17.9.4a
Affected: 17.3.8a
Affected: 17.6.6a
Affected: 17.6.5a
Affected: 17.6.7
Affected: 17.15.1
Affected: 17.13.1a
Affected: 17.12.2a
Affected: 17.12.3
Affected: 17.12.1y
Affected: 17.12.1z
Affected: 17.9.5a
Affected: 17.14.1a
Affected: 17.9.5b
Affected: 17.6.8
Affected: 17.12.4
Affected: 17.9.6
Affected: 17.17.1
Affected: 17.16.1
Affected: 17.15.1w
Affected: 17.12.3a
Affected: 17.9.5c
Affected: 17.15.1a
Affected: 17.12.1z1
Affected: 17.15.2
Affected: 17.15.1b
Affected: 17.9.5d
Affected: 17.15.1x
Affected: 17.9.6a
Affected: 17.12.1z2
Affected: 17.6.8a
Affected: 17.16.1a
Affected: 17.15.3
Affected: 17.9.7
Affected: 17.12.5
Affected: 17.15.1y
Affected: 17.9.5e
Affected: 17.12.4a
Affected: 17.15.2a
Affected: 17.15.2c
Affected: 17.15.2b
Affected: 17.12.1z3
Affected: 17.9.5f
Affected: 17.12.4b
Affected: 17.12.5a
Affected: 17.18.1
Affected: 17.12.6
Affected: 17.12.1z4
Affected: 17.9.8
Affected: 17.9.7a
Affected: 17.15.3a
Affected: 17.15.4
Affected: 17.12.5b
Affected: 17.15.3b
Affected: 17.18.1z
Affected: 17.9.7b
Affected: 17.12.5c
Affected: 26.1.1
Affected: 17.18.1a
Affected: 17.15.4a
Affected: 17.18.2
Affected: 17.18.1w
Affected: 17.15.4b
Affected: 17.12.6a
Affected: 17.12.7
Affected: 17.15.4c
Affected: 17.9.9
Affected: 17.12.5d
Affected: 17.15.4s1
Affected: 17.15.5
Affected: 17.12.1z5
Affected: 17.18.1x
Affected: 17.12.1z6
Affected: 17.15.4d
Affected: 17.12.6b
Affected: 17.4.1c
Affected: 17.15.5a
Affected: 17.18.1y
Affected: 17.12.7a
Affected: 17.18.3
Affected: 17.12.7b
Affected: 17.18.3a
Affected: 26.1.1a
Affected: 26.2.1ea
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    "nvd": "{\"cve\":{\"id\":\"CVE-2026-20311\",\"sourceIdentifier\":\"psirt@cisco.com\",\"published\":\"2026-08-05T17:16:51.893\",\"lastModified\":\"2026-08-06T15:44:56.043\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"A vulnerability in the web-based management interface of Cisco IOS XE Software could allow an authenticated, remote attacker with low privileges to cause a denial of service (DoS) condition on an affected device.\\r\\n\\r\\nThis vulnerability is due to insufficient error handling in the web-based management interface. An attacker could exploit this vulnerability by authenticating with a malformed certificate. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition.\"}],\"affected\":[{\"source\":\"psirt@cisco.com\",\"affectedData\":[{\"vendor\":\"Cisco\",\"product\":\"Cisco IOS XE Software\",\"defaultStatus\":\"unknown\",\"versions\":[{\"version\":\"17.3.1\",\"status\":\"affected\"},{\"version\":\"17.3.1a\",\"status\":\"affected\"},{\"version\":\"17.3.2a\",\"status\":\"affected\"},{\"version\":\"17.3.1w\",\"status\":\"affected\"},{\"version\":\"17.3.2\",\"status\":\"affected\"},{\"version\":\"17.4.1\",\"status\":\"affected\"},{\"version\":\"17.4.1a\",\"status\":\"affected\"},{\"version\":\"17.3.1x\",\"status\":\"affected\"},{\"version\":\"17.3.3\",\"status\":\"affected\"},{\"version\":\"17.5.1\",\"status\":\"affected\"},{\"version\":\"17.4.1b\",\"status\":\"affected\"},{\"version\":\"17.3.1z\",\"status\":\"affected\"},{\"version\":\"17.4.2\",\"status\":\"affected\"},{\"version\":\"17.3.3a\",\"status\":\"affected\"},{\"version\":\"17.3.5\",\"status\":\"affected\"},{\"version\":\"17.3.4\",\"status\":\"affected\"},{\"version\":\"17.5.1a\",\"status\":\"affected\"},{\"version\":\"17.6.1\",\"status\":\"affected\"},{\"version\":\"17.3.4a\",\"status\":\"affected\"},{\"version\":\"17.6.1a\",\"status\":\"affected\"},{\"version\":\"17.7.1\",\"status\":\"affected\"},{\"version\":\"17.6.1x\",\"status\":\"affected\"},{\"version\":\"17.6.2\",\"status\":\"affected\"},{\"version\":\"17.3.4c\",\"status\":\"affected\"},{\"version\":\"17.4.2a\",\"status\":\"affected\"},{\"version\":\"17.3.4b\",\"status\":\"affected\"},{\"version\":\"17.7.1a\",\"status\":\"affected\"},{\"version\":\"17.8.1a\",\"status\":\"affected\"},{\"version\":\"17.6.3a\",\"status\":\"affected\"},{\"version\":\"17.6.3\",\"status\":\"affected\"},{\"version\":\"17.7.2\",\"status\":\"affected\"},{\"version\":\"17.7.1b\",\"status\":\"affected\"},{\"version\":\"17.9.1w\",\"status\":\"affected\"},{\"version\":\"17.3.5a\",\"status\":\"affected\"},{\"version\":\"17.6.1z\",\"status\":\"affected\"},{\"version\":\"17.8.1\",\"status\":\"affected\"},{\"version\":\"17.9.1\",\"status\":\"affected\"},{\"version\":\"17.6.4\",\"status\":\"affected\"},{\"version\":\"17.3.5b\",\"status\":\"affected\"},{\"version\":\"17.9.1a\",\"status\":\"affected\"},{\"version\":\"17.3.6\",\"status\":\"affected\"},{\"version\":\"17.10.1\",\"status\":\"affected\"},{\"version\":\"17.6.1z1\",\"status\":\"affected\"},{\"version\":\"17.10.1a\",\"status\":\"affected\"},{\"version\":\"17.9.2\",\"status\":\"affected\"},{\"version\":\"17.6.5\",\"status\":\"affected\"},{\"version\":\"17.9.1x\",\"status\":\"affected\"},{\"version\":\"17.9.1y\",\"status\":\"affected\"},{\"version\":\"17.3.7\",\"status\":\"affected\"},{\"version\":\"17.9.2a\",\"status\":\"affected\"},{\"version\":\"17.9.3\",\"status\":\"affected\"},{\"version\":\"17.11.1\",\"status\":\"affected\"},{\"version\":\"17.10.1b\",\"status\":\"affected\"},{\"version\":\"17.6.6\",\"status\":\"affected\"},{\"version\":\"17.9.1x1\",\"status\":\"affected\"},{\"version\":\"17.11.1a\",\"status\":\"affected\"},{\"version\":\"17.9.3a\",\"status\":\"affected\"},{\"version\":\"17.12.1\",\"status\":\"affected\"},{\"version\":\"17.3.8\",\"status\":\"affected\"},{\"version\":\"17.9.4\",\"status\":\"affected\"},{\"version\":\"17.12.1w\",\"status\":\"affected\"},{\"version\":\"17.9.1y1\",\"status\":\"affected\"},{\"version\":\"17.12.1a\",\"status\":\"affected\"},{\"version\":\"17.9.5\",\"status\":\"affected\"},{\"version\":\"17.13.1\",\"status\":\"affected\"},{\"version\":\"17.12.1x\",\"status\":\"affected\"},{\"version\":\"17.12.2\",\"status\":\"affected\"},{\"version\":\"17.14.1\",\"status\":\"affected\"},{\"version\":\"17.9.4a\",\"status\":\"affected\"},{\"version\":\"17.3.8a\",\"status\":\"affected\"},{\"version\":\"17.6.6a\",\"status\":\"affected\"},{\"version\":\"17.6.5a\",\"status\":\"affected\"},{\"version\":\"17.6.7\",\"status\":\"affected\"},{\"version\":\"17.15.1\",\"status\":\"affected\"},{\"version\":\"17.13.1a\",\"status\":\"affected\"},{\"version\":\"17.12.2a\",\"status\":\"affected\"},{\"version\":\"17.12.3\",\"status\":\"affected\"},{\"version\":\"17.12.1y\",\"status\":\"affected\"},{\"version\":\"17.12.1z\",\"status\":\"affected\"},{\"version\":\"17.9.5a\",\"status\":\"affected\"},{\"version\":\"17.14.1a\",\"status\":\"affected\"},{\"version\":\"17.9.5b\",\"status\":\"affected\"},{\"version\":\"17.6.8\",\"status\":\"affected\"},{\"version\":\"17.12.4\",\"status\":\"affected\"},{\"version\":\"17.9.6\",\"status\":\"affected\"},{\"version\":\"17.17.1\",\"status\":\"affected\"},{\"version\":\"17.16.1\",\"status\":\"affected\"},{\"version\":\"17.15.1w\",\"status\":\"affected\"},{\"version\":\"17.12.3a\",\"status\":\"affected\"},{\"version\":\"17.9.5c\",\"status\":\"affected\"},{\"version\":\"17.15.1a\",\"status\":\"affected\"},{\"version\":\"17.12.1z1\",\"status\":\"affected\"},{\"version\":\"17.15.2\",\"status\":\"affected\"},{\"version\":\"17.15.1b\",\"status\":\"affected\"},{\"version\":\"17.9.5d\",\"status\":\"affected\"},{\"version\":\"17.15.1x\",\"status\":\"affected\"},{\"version\":\"17.9.6a\",\"status\":\"affected\"},{\"version\":\"17.12.1z2\",\"status\":\"affected\"},{\"version\":\"17.6.8a\",\"status\":\"affected\"},{\"version\":\"17.16.1a\",\"status\":\"affected\"},{\"version\":\"17.15.3\",\"status\":\"affected\"},{\"version\":\"17.9.7\",\"status\":\"affected\"},{\"version\":\"17.12.5\",\"status\":\"affected\"},{\"version\":\"17.15.1y\",\"status\":\"affected\"},{\"version\":\"17.9.5e\",\"status\":\"affected\"},{\"version\":\"17.12.4a\",\"status\":\"affected\"},{\"version\":\"17.15.2a\",\"status\":\"affected\"},{\"version\":\"17.15.2c\",\"status\":\"affected\"},{\"version\":\"17.15.2b\",\"status\":\"affected\"},{\"version\":\"17.12.1z3\",\"status\":\"affected\"},{\"version\":\"17.9.5f\",\"status\":\"affected\"},{\"version\":\"17.12.4b\",\"status\":\"affected\"},{\"version\":\"17.12.5a\",\"status\":\"affected\"},{\"version\":\"17.18.1\",\"status\":\"affected\"},{\"version\":\"17.12.6\",\"status\":\"affected\"},{\"version\":\"17.12.1z4\",\"status\":\"affected\"},{\"version\":\"17.9.8\",\"status\":\"affected\"},{\"version\":\"17.9.7a\",\"status\":\"affected\"},{\"version\":\"17.15.3a\",\"status\":\"affected\"},{\"version\":\"17.15.4\",\"status\":\"affected\"},{\"version\":\"17.12.5b\",\"status\":\"affected\"},{\"version\":\"17.15.3b\",\"status\":\"affected\"},{\"version\":\"17.18.1z\",\"status\":\"affected\"},{\"version\":\"17.9.7b\",\"status\":\"affected\"},{\"version\":\"17.12.5c\",\"status\":\"affected\"},{\"version\":\"26.1.1\",\"status\":\"affected\"},{\"version\":\"17.18.1a\",\"status\":\"affected\"},{\"version\":\"17.15.4a\",\"status\":\"affected\"},{\"version\":\"17.18.2\",\"status\":\"affected\"},{\"version\":\"17.18.1w\",\"status\":\"affected\"},{\"version\":\"17.15.4b\",\"status\":\"affected\"},{\"version\":\"17.12.6a\",\"status\":\"affected\"},{\"version\":\"17.12.7\",\"status\":\"affected\"},{\"version\":\"17.15.4c\",\"status\":\"affected\"},{\"version\":\"17.9.9\",\"status\":\"affected\"},{\"version\":\"17.12.5d\",\"status\":\"affected\"},{\"version\":\"17.15.4s1\",\"status\":\"affected\"},{\"version\":\"17.15.5\",\"status\":\"affected\"},{\"version\":\"17.12.1z5\",\"status\":\"affected\"},{\"version\":\"17.18.1x\",\"status\":\"affected\"},{\"version\":\"17.12.1z6\",\"status\":\"affected\"},{\"version\":\"17.15.4d\",\"status\":\"affected\"},{\"version\":\"17.12.6b\",\"status\":\"affected\"},{\"version\":\"17.4.1c\",\"status\":\"affected\"},{\"version\":\"17.15.5a\",\"status\":\"affected\"},{\"version\":\"17.18.1y\",\"status\":\"affected\"},{\"version\":\"17.12.7a\",\"status\":\"affected\"},{\"version\":\"17.18.3\",\"status\":\"affected\"},{\"version\":\"17.12.7b\",\"status\":\"affected\"},{\"version\":\"17.18.3a\",\"status\":\"affected\"},{\"version\":\"26.1.1a\",\"status\":\"affected\"},{\"version\":\"26.2.1ea\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"psirt@cisco.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H\",\"baseScore\":6.3,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":4.0}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2026-08-05T17:35:57.539429Z\",\"id\":\"CVE-2026-20311\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"psirt@cisco.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-126\"}]}],\"references\":[{\"url\":\"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-xe-webui-dos-PtAODAWW\",\"source\":\"psirt@cisco.com\"}]}}",
    "vulnrichment": {
      "containers": "{\"cna\": {\"title\": \"Cisco IOS XE Software Web UI Denial of Service Vulnerability\", \"metrics\": [{\"format\": \"cvssV3_1\", \"cvssV3_1\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H\", \"baseScore\": 6.3, \"baseSeverity\": \"MEDIUM\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"userInteraction\": \"NONE\", \"scope\": \"CHANGED\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"HIGH\"}}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"A vulnerability in the web-based management interface of Cisco IOS XE Software could allow an authenticated, remote attacker with low privileges to cause a denial of service (DoS) condition on an affected device.\\r\\n\\r\\nThis vulnerability is due to insufficient error handling in the web-based management interface. An attacker could exploit this vulnerability by authenticating with a malformed certificate. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition.\"}], \"references\": [{\"url\": \"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-xe-webui-dos-PtAODAWW\", \"name\": \"cisco-sa-xe-webui-dos-PtAODAWW\"}], \"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-xe-webui-dos-PtAODAWW\", \"discovery\": \"INTERNAL\", \"defects\": [\"CSCwu25287\"]}, \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"description\": \"Buffer Over-read\", \"type\": \"cwe\", \"cweId\": \"CWE-126\"}]}], \"affected\": [{\"vendor\": \"Cisco\", \"product\": \"Cisco IOS XE Software\", \"versions\": [{\"version\": \"17.3.1\", \"status\": \"affected\"}, {\"version\": \"17.3.1a\", \"status\": \"affected\"}, {\"version\": \"17.3.2a\", \"status\": \"affected\"}, {\"version\": \"17.3.1w\", \"status\": \"affected\"}, {\"version\": \"17.3.2\", \"status\": \"affected\"}, {\"version\": \"17.4.1\", \"status\": \"affected\"}, {\"version\": \"17.4.1a\", \"status\": \"affected\"}, {\"version\": \"17.3.1x\", \"status\": \"affected\"}, {\"version\": \"17.3.3\", \"status\": \"affected\"}, {\"version\": \"17.5.1\", \"status\": \"affected\"}, {\"version\": \"17.4.1b\", \"status\": \"affected\"}, {\"version\": \"17.3.1z\", \"status\": \"affected\"}, {\"version\": \"17.4.2\", \"status\": \"affected\"}, {\"version\": \"17.3.3a\", \"status\": \"affected\"}, {\"version\": \"17.3.5\", \"status\": \"affected\"}, {\"version\": \"17.3.4\", \"status\": \"affected\"}, {\"version\": \"17.5.1a\", \"status\": \"affected\"}, {\"version\": \"17.6.1\", \"status\": \"affected\"}, {\"version\": \"17.3.4a\", \"status\": \"affected\"}, {\"version\": \"17.6.1a\", \"status\": \"affected\"}, {\"version\": \"17.7.1\", \"status\": \"affected\"}, {\"version\": \"17.6.1x\", \"status\": \"affected\"}, {\"version\": \"17.6.2\", \"status\": \"affected\"}, {\"version\": \"17.3.4c\", \"status\": \"affected\"}, {\"version\": \"17.4.2a\", \"status\": \"affected\"}, {\"version\": \"17.3.4b\", \"status\": \"affected\"}, {\"version\": \"17.7.1a\", \"status\": \"affected\"}, {\"version\": \"17.8.1a\", \"status\": \"affected\"}, {\"version\": \"17.6.3a\", \"status\": \"affected\"}, {\"version\": \"17.6.3\", \"status\": \"affected\"}, {\"version\": \"17.7.2\", \"status\": \"affected\"}, {\"version\": \"17.7.1b\", \"status\": \"affected\"}, {\"version\": \"17.9.1w\", \"status\": \"affected\"}, {\"version\": \"17.3.5a\", \"status\": \"affected\"}, {\"version\": \"17.6.1z\", \"status\": \"affected\"}, {\"version\": \"17.8.1\", \"status\": \"affected\"}, {\"version\": \"17.9.1\", \"status\": \"affected\"}, {\"version\": \"17.6.4\", \"status\": \"affected\"}, {\"version\": \"17.3.5b\", \"status\": \"affected\"}, {\"version\": \"17.9.1a\", \"status\": \"affected\"}, {\"version\": \"17.3.6\", \"status\": \"affected\"}, {\"version\": \"17.10.1\", \"status\": \"affected\"}, {\"version\": \"17.6.1z1\", \"status\": \"affected\"}, {\"version\": \"17.10.1a\", \"status\": \"affected\"}, {\"version\": \"17.9.2\", \"status\": \"affected\"}, {\"version\": \"17.6.5\", \"status\": \"affected\"}, {\"version\": \"17.9.1x\", \"status\": \"affected\"}, {\"version\": \"17.9.1y\", \"status\": \"affected\"}, {\"version\": \"17.3.7\", \"status\": \"affected\"}, {\"version\": \"17.9.2a\", \"status\": \"affected\"}, {\"version\": \"17.9.3\", \"status\": \"affected\"}, {\"version\": \"17.11.1\", \"status\": \"affected\"}, {\"version\": \"17.10.1b\", \"status\": \"affected\"}, {\"version\": \"17.6.6\", \"status\": \"affected\"}, {\"version\": \"17.9.1x1\", \"status\": \"affected\"}, {\"version\": \"17.11.1a\", \"status\": \"affected\"}, {\"version\": \"17.9.3a\", \"status\": \"affected\"}, {\"version\": \"17.12.1\", \"status\": \"affected\"}, {\"version\": \"17.3.8\", \"status\": \"affected\"}, {\"version\": \"17.9.4\", \"status\": \"affected\"}, {\"version\": \"17.12.1w\", \"status\": \"affected\"}, {\"version\": \"17.9.1y1\", \"status\": \"affected\"}, {\"version\": \"17.12.1a\", \"status\": \"affected\"}, {\"version\": \"17.9.5\", \"status\": \"affected\"}, {\"version\": \"17.13.1\", \"status\": \"affected\"}, {\"version\": \"17.12.1x\", \"status\": \"affected\"}, {\"version\": \"17.12.2\", \"status\": \"affected\"}, {\"version\": \"17.14.1\", \"status\": \"affected\"}, {\"version\": \"17.9.4a\", \"status\": \"affected\"}, {\"version\": \"17.3.8a\", \"status\": \"affected\"}, {\"version\": \"17.6.6a\", \"status\": \"affected\"}, {\"version\": \"17.6.5a\", \"status\": \"affected\"}, {\"version\": \"17.6.7\", \"status\": \"affected\"}, {\"version\": \"17.15.1\", \"status\": \"affected\"}, {\"version\": \"17.13.1a\", \"status\": \"affected\"}, {\"version\": \"17.12.2a\", \"status\": \"affected\"}, {\"version\": \"17.12.3\", \"status\": \"affected\"}, {\"version\": \"17.12.1y\", \"status\": \"affected\"}, {\"version\": \"17.12.1z\", \"status\": \"affected\"}, {\"version\": \"17.9.5a\", \"status\": \"affected\"}, {\"version\": \"17.14.1a\", \"status\": \"affected\"}, {\"version\": \"17.9.5b\", \"status\": \"affected\"}, {\"version\": \"17.6.8\", \"status\": \"affected\"}, {\"version\": \"17.12.4\", \"status\": \"affected\"}, {\"version\": \"17.9.6\", \"status\": \"affected\"}, {\"version\": \"17.17.1\", \"status\": \"affected\"}, {\"version\": \"17.16.1\", \"status\": \"affected\"}, {\"version\": \"17.15.1w\", \"status\": \"affected\"}, {\"version\": \"17.12.3a\", \"status\": \"affected\"}, {\"version\": \"17.9.5c\", \"status\": \"affected\"}, {\"version\": \"17.15.1a\", \"status\": \"affected\"}, {\"version\": \"17.12.1z1\", \"status\": \"affected\"}, {\"version\": \"17.15.2\", \"status\": \"affected\"}, {\"version\": \"17.15.1b\", \"status\": \"affected\"}, {\"version\": \"17.9.5d\", \"status\": \"affected\"}, {\"version\": \"17.15.1x\", \"status\": \"affected\"}, {\"version\": \"17.9.6a\", \"status\": \"affected\"}, {\"version\": \"17.12.1z2\", \"status\": \"affected\"}, {\"version\": \"17.6.8a\", \"status\": \"affected\"}, {\"version\": \"17.16.1a\", \"status\": \"affected\"}, {\"version\": \"17.15.3\", \"status\": \"affected\"}, {\"version\": \"17.9.7\", \"status\": \"affected\"}, {\"version\": \"17.12.5\", \"status\": \"affected\"}, {\"version\": \"17.15.1y\", \"status\": \"affected\"}, {\"version\": \"17.9.5e\", \"status\": \"affected\"}, {\"version\": \"17.12.4a\", \"status\": \"affected\"}, {\"version\": \"17.15.2a\", \"status\": \"affected\"}, {\"version\": \"17.15.2c\", \"status\": \"affected\"}, {\"version\": \"17.15.2b\", \"status\": \"affected\"}, {\"version\": \"17.12.1z3\", \"status\": \"affected\"}, {\"version\": \"17.9.5f\", \"status\": \"affected\"}, {\"version\": \"17.12.4b\", \"status\": \"affected\"}, {\"version\": \"17.12.5a\", \"status\": \"affected\"}, {\"version\": \"17.18.1\", \"status\": \"affected\"}, {\"version\": \"17.12.6\", \"status\": \"affected\"}, {\"version\": \"17.12.1z4\", \"status\": \"affected\"}, {\"version\": \"17.9.8\", \"status\": \"affected\"}, {\"version\": \"17.9.7a\", \"status\": \"affected\"}, {\"version\": \"17.15.3a\", \"status\": \"affected\"}, {\"version\": \"17.15.4\", \"status\": \"affected\"}, {\"version\": \"17.12.5b\", \"status\": \"affected\"}, {\"version\": \"17.15.3b\", \"status\": \"affected\"}, {\"version\": \"17.18.1z\", \"status\": \"affected\"}, {\"version\": \"17.9.7b\", \"status\": \"affected\"}, {\"version\": \"17.12.5c\", \"status\": \"affected\"}, {\"version\": \"26.1.1\", \"status\": \"affected\"}, {\"version\": \"17.18.1a\", \"status\": \"affected\"}, {\"version\": \"17.15.4a\", \"status\": \"affected\"}, {\"version\": \"17.18.2\", \"status\": \"affected\"}, {\"version\": \"17.18.1w\", \"status\": \"affected\"}, {\"version\": \"17.15.4b\", \"status\": \"affected\"}, {\"version\": \"17.12.6a\", \"status\": \"affected\"}, {\"version\": \"17.12.7\", \"status\": \"affected\"}, {\"version\": \"17.15.4c\", \"status\": \"affected\"}, {\"version\": \"17.9.9\", \"status\": \"affected\"}, {\"version\": \"17.12.5d\", \"status\": \"affected\"}, {\"version\": \"17.15.4s1\", \"status\": \"affected\"}, {\"version\": \"17.15.5\", \"status\": \"affected\"}, {\"version\": \"17.12.1z5\", \"status\": \"affected\"}, {\"version\": \"17.18.1x\", \"status\": \"affected\"}, {\"version\": \"17.12.1z6\", \"status\": \"affected\"}, {\"version\": \"17.15.4d\", \"status\": \"affected\"}, {\"version\": \"17.12.6b\", \"status\": \"affected\"}, {\"version\": \"17.4.1c\", \"status\": \"affected\"}, {\"version\": \"17.15.5a\", \"status\": \"affected\"}, {\"version\": \"17.18.1y\", \"status\": \"affected\"}, {\"version\": \"17.12.7a\", \"status\": \"affected\"}, {\"version\": \"17.18.3\", \"status\": \"affected\"}, {\"version\": \"17.12.7b\", \"status\": \"affected\"}, {\"version\": \"17.18.3a\", \"status\": \"affected\"}, {\"version\": \"26.1.1a\", \"status\": \"affected\"}, {\"version\": \"26.2.1ea\", \"status\": \"affected\"}], \"defaultStatus\": \"unknown\"}], \"providerMetadata\": {\"orgId\": \"d1c1063e-7a18-46af-9102-31f8928bc633\", \"shortName\": \"cisco\", \"dateUpdated\": \"2026-08-05T16:32:36.347Z\"}}, \"adp\": [{\"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-20311\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-08-05T17:35:57.539429Z\"}}}], \"providerMetadata\": {\"shortName\": \"CISA-ADP\", \"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"dateUpdated\": \"2026-08-05T17:38:47.311Z\"}, \"title\": \"CISA ADP Vulnrichment\"}]}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-20311\", \"assignerOrgId\": \"d1c1063e-7a18-46af-9102-31f8928bc633\", \"state\": \"PUBLISHED\", \"assignerShortName\": \"cisco\", \"dateReserved\": \"2025-10-08T11:59:15.409Z\", \"datePublished\": \"2026-08-05T16:32:36.347Z\", \"dateUpdated\": \"2026-08-05T16:32:36.347Z\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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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.

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Detection rules are retrieved from Rulezet.

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