CVE-2020-3492

highPriorität · verfolgen · 34EPSS 0.014 · 72. PerzentilEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

1.37% (72nd) EPSS

CVSS 7.8 · high

Is it mine?

19 products

Prüfe deine Angriffsfläche

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · cisco_csaf

EPSS · bewertet 2026-10-27

A vulnerability in the Flexible NetFlow Version 9 packet processor of Cisco IOS XE Software for Cisco Catalyst 9800 Series Wireless Controllers and Cisco AireOS Software for Cisco Wireless LAN Controllers (WLC) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to insufficient validation of certain parameters in a Flexible NetFlow Version 9 record. An attacker could exploit this vulnerability by spoofing the address of an existing Access Point on the network and sending a Control and Provisioning of Wireless Access Points (CAPWAP) packet that includes a crafted Flexible NetFlow Version 9 record to an affected device. A successful exploit could allow the attacker to cause a process crash that would lead to a reload of the device.

Behebungen

Hersteller-Fix, Mitigation oder Workaround, wie von den Quellen veröffentlicht.

Ein Hersteller-Fix ist verfügbar.

Behoben16.10.1cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
Behoben16.10.1ecisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
Behoben16.10.1scisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
Behoben16.11.1cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
Behoben16.11.1acisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
Behoben16.11.1bcisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
Behoben16.11.1ccisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
Behoben16.12.1cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
Behoben16.12.1scisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
Behoben16.12.1tcisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
BehobenCisco Wireless LAN Controller (WLC) 8.10.105.0 when installed on Cisco 3500 Series Wireless Controllerscisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
BehobenCisco Wireless LAN Controller (WLC) 8.10.105.0 when installed on Cisco 5500 Series Wireless Controllerscisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
BehobenCisco Wireless LAN Controller (WLC) 8.10.105.0 when installed on Cisco 8500 Series Wireless Controllerscisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
BehobenCisco Wireless LAN Controller (WLC) 8.10.105.0 when installed on Cisco Virtual Wireless Controllercisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com

cvss

Technischer Schweregrad, 0–10. Eine Zeile je Quelle.

8.6

010

Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen

v2.07.8highAV:N/AC:L/Au:N/C:N/I:N/A:Cprimary · NVD / NIST USAusnutzbarkeit 10 · Auswirkung 6.9

v3.18.6highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:Hprimary · NVD / NIST USAusnutzbarkeit 3.9 · Auswirkung 4

v3.08.6highCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:Hsecondary · ENISA EU

v3.08.6highCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:Hsecondary · psirt@cisco.com USAusnutzbarkeit 3.9 · Auswirkung 4

v3.08.6highCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:Hsecondary · Cisco PSIRT US

v3.18.6highAV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:Hsecondary · FSTEC (BDU) RU

v3.17.9highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

SSVC

Eine Handlungsentscheidung — aus Ausnutzung und Auswirkung.

Exploitation: none · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS

schwächen

Die CWE-Schwächeklassen, zu denen dies gehört.

CWE-20USprimärCWE-20US

betroffene Produkte (19)

Betroffene Produkte und Versionsbereiche.

Cisco Wireless LAN Controller (WLC) 8.10.105.0 when installed on Cisco 3500 Series Wireless Controllersalle Versionencisco_csafUS
Cisco Wireless LAN Controller (WLC) 8.10.105.0 when installed on Cisco 5500 Series Wireless Controllersalle Versionencisco_csafUS
Cisco Wireless LAN Controller (WLC) 8.10.105.0 when installed on Cisco 8500 Series Wireless Controllersalle Versionencisco_csafUS
Cisco Wireless LAN Controller (WLC) 8.10.105.0 when installed on Cisco Virtual Wireless Controlleralle Versionencisco_csafUS
Cisco 16.10.1alle Versionencisco_csafUS
Cisco 16.10.1ealle Versionencisco_csafUS
Cisco 16.10.1salle Versionencisco_csafUS
Cisco 16.11.1alle Versionencisco_csafUS
Cisco 16.11.1aalle Versionencisco_csafUS
Cisco 16.11.1balle Versionencisco_csafUS
Cisco 16.11.1calle Versionencisco_csafUS
Cisco 16.12.1alle Versionencisco_csafUS
Cisco 16.12.1salle Versionencisco_csafUS
Cisco 16.12.1talle Versionencisco_csafUS
Cisco Cisco Wireless LAN Controller (WLC)≤ n/aenisa_euvdEU
Cisco Systems Inc. Cisco IOS XE≤ 16.12.1fstec_bduRU
Cisco Systems Inc. Cisco IOS XE≤ 16.11.1fstec_bduRU
Cisco Systems Inc. Cisco IOS XE≤ 16.10.1fstec_bduRU
cisco ios xe= 16.12.1nvdUScpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:*

Advisories (1)

Hersteller- und Ökosystem-Meldungen dazu.

cisco-sa-iosxe-wlc-fnfv9-EvrAQpNXCisco IOS XE Software for Catalyst 9800 Series and Cisco AireOS Software for Cisco WLC Flexible NetFlow Version 9 Denial of Service Vulnerability2020-09-24csaf · cisco_csafUS
A vulnerability in the Flexible NetFlow Version 9 packet processor of Cisco IOS XE Software for Cisco Catalyst 9800 Series Wireless Controllers and Cisco AireOS Software for Cisco Wireless LAN Controllers (WLC) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to insufficient validation of certain parameters in a Flexible NetFlow Version 9 record. An attacker could exploit this vulnerability by spoofing the address of an existing Access Point on the network and sending a Control and Provisioning of Wireless Access Points (CAPWAP) packet that includes a crafted Flexible NetFlow Version 9 record to an affected device. A successful exploit could allow the attacker to cause a process crash that would lead to a reload of the device. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. This advisory is part of the September 24, 2020, release of the Cisco IOS and IOS XE Software Security Advisory Bundled Publication, which includes 25 Cisco Security Advisories that describe 34 vulnerabilities. For a complete list of the advisories and links to them, see Cisco Event Response: September 2020 Semiannual Cisco IOS and IOS XE Software Security Advisory Bundled Publication ["https://sec.cloudapps.cisco.com/security/center/viewErp.x?alertId=ERP-74268"].

auch bekannt als (4)

Weitere Namen und Kennungen dieser Entität.

quellen

Welche Quellen diesen Datensatz belegen und wann.

cnnvd enisa_euvd fstec_bdu cisco_csaf nvd NVD CVE.org MITRE

veröffentlicht 2020-09-24geändert 2026-06-17

verwandt (25,176)

Verwandte Einträge.

ID	Schweregrad	EPSS	ausnutzbar	veröffentlicht
CVE-2026-88771US	critical9.8OT kritisch	82.2% (100th)	KEV	2026-09-27
Improper input validation vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway. This issue affects ADC: before 14.1-73.37, before 13.1-64.23, before 14.1-73.37 FIPS,…
CVE-2026-93952US	—OT kritisch	1.38% (72nd)	KEV	2026-09-22
VeloCloud Orchestrator (VCO) on-prem has a security issue where this issue may allow a remote attacker to access privileged internal functionality and impact the VCO host. Successf…
CVE-2026-12569US	critical9.8OT kritisch	46.0% (99th)	KEV	2026-06-18
A critical remote code execution (RCE) vulnerability has been reported in PTC Windchill PDMlink and PTC FlexPLM. The vulnerability may be exploited through the deserialization of u…
CVE-2026-34910US	—OT kritisch	90.0% (100th)	KEV	2026-05-22
A malicious actor with access to the network could exploit an Improper Input Validation vulnerability found in UniFi OS devices to execute a Command Injection.
CVE-2026-6973US	—OT kritisch	34.5% (98th)	KEV	2026-05-07
An Improper Input Validation in Ivanti EPMM before versions 12.6.1.1, 12.7.0.1, and 12.8.0.1 allows a remotely authenticated user with administrative access to achieve remote code…

+25171 weitere

Referenzen (7)

Externe Belege — Patches, Meldungen, Analysen.

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