CVE-2026-20010

highPriorität · verfolgen · 0EPSS 0.002 · 8. PerzentilDEEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.19% (8th) EPSS

CVSS 7.4 · high

Is it mine?

110 products

Prüfe deine Angriffsfläche

Who says so?

4 sources

cnnvd · enisa_euvd · cert_bund · cisco_csaf

EPSS · bewertet 2026-10-27

A vulnerability in the Link Layer Discovery Protocol (LLDP) feature of Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to cause the LLDP process to restart, which could cause an affected device to reload unexpectedly. This vulnerability is due to improper handling of specific fields in an LLDP frame. An attacker could exploit this vulnerability by sending a crafted LLDP packet to an interface of an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a denial of service (DoS) condition. Note: LLDP is a Layer 2 link protocol. To exploit this vulnerability, an attacker would need to be directly connected to an interface of an affected device, either physically or logically (for example, through a Layer 2 Tunnel configured to transport the LLDP protocol).

Behebungen

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

Ein Hersteller-Fix ist verfügbar.

Behoben4.3(4b)cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
Behoben4.3(4c)cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
Behoben4.3(4d)cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
Behoben4.3(4e)cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
Behoben4.3(4f)cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
Behoben4.3(5a)cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
Behoben4.3(5c)cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
Behoben4.3(5d)cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
Behoben4.3(5e)cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
Behoben4.3(6a)cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
Behoben4.3(6b)cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
Behoben4.3(6c)cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
Behoben4.3(6d)cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
BehobenCisco NX-OS Software 10.3(1) when installed on Cisco Nexus 3000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
BehobenCisco NX-OS Software 10.3(1) when installed on Cisco Nexus 9000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
BehobenCisco NX-OS Software 10.3(2) when installed on Cisco Nexus 3000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
BehobenCisco NX-OS Software 10.3(2) when installed on Cisco Nexus 9000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
BehobenCisco NX-OS Software 10.3(3) when installed on Cisco Nexus 3000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
BehobenCisco NX-OS Software 10.3(3) when installed on Cisco Nexus 9000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
BehobenCisco NX-OS Software 10.3(3o) when installed on Cisco Nexus 9000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
BehobenCisco NX-OS Software 10.3(3p) when installed on Cisco Nexus 9000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
BehobenCisco NX-OS Software 10.3(3q) when installed on Cisco Nexus 9000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
BehobenCisco NX-OS Software 10.3(3r) when installed on Cisco Nexus 9000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
BehobenCisco NX-OS Software 10.3(3w) when installed on Cisco Nexus 9000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
BehobenCisco NX-OS Software 10.3(3x) when installed on Cisco Nexus 9000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
BehobenCisco NX-OS Software 10.3(4) when installed on Cisco Nexus 3000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
BehobenCisco NX-OS Software 10.3(4) when installed on Cisco Nexus 9000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
BehobenCisco NX-OS Software 10.3(4a) when installed on Cisco Nexus 3000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
BehobenCisco NX-OS Software 10.3(4a) when installed on Cisco Nexus 9000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
BehobenCisco NX-OS Software 10.3(4g) when installed on Cisco Nexus 9000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
BehobenCisco NX-OS Software 10.3(4h) when installed on Cisco Nexus 9000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
BehobenCisco NX-OS Software 10.3(99w) when installed on Cisco Nexus 9000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
BehobenCisco NX-OS Software 10.3(99x) when installed on Cisco Nexus 9000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
BehobenCisco NX-OS Software 10.4(1) when installed on Cisco Nexus 3000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
BehobenCisco NX-OS Software 10.4(1) when installed on Cisco Nexus 9000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
BehobenCisco NX-OS Software 10.4(2) when installed on Cisco Nexus 3000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
BehobenCisco NX-OS Software 10.4(2) when installed on Cisco Nexus 9000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
BehobenCisco NX-OS System Software in ACI Mode 16.0(2h) when installed on Cisco Nexus 9000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
BehobenCisco NX-OS System Software in ACI Mode 16.0(2j) when installed on Cisco Nexus 9000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
BehobenCisco NX-OS System Software in ACI Mode 16.0(3d) when installed on Cisco Nexus 9000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
BehobenCisco NX-OS System Software in ACI Mode 16.0(3e) when installed on Cisco Nexus 9000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
BehobenCisco NX-OS System Software in ACI Mode 16.0(3g) when installed on Cisco Nexus 9000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
BehobenCisco NX-OS System Software in ACI Mode 16.0(4c) when installed on Cisco Nexus 9000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
BehobenCisco NX-OS System Software in ACI Mode 16.0(5h) when installed on Cisco Nexus 9000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
BehobenCisco NX-OS System Software in ACI Mode 16.0(5j) when installed on Cisco Nexus 9000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
BehobenCisco NX-OS System Software in ACI Mode 16.0(6c) when installed on Cisco Nexus 9000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
BehobenCisco NX-OS System Software in ACI Mode 16.0(6h) when installed on Cisco Nexus 9000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
BehobenCisco NX-OS System Software in ACI Mode 16.0(7e) when installed on Cisco Nexus 9000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
BehobenCisco NX-OS System Software in ACI Mode 16.0(8e) when installed on Cisco Nexus 9000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
BehobenCisco NX-OS System Software in ACI Mode 16.0(8f) when installed on Cisco Nexus 9000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
BehobenCisco NX-OS System Software in ACI Mode 16.0(8h) when installed on Cisco Nexus 9000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
BehobenCisco NX-OS System Software in ACI Mode 16.0(9c) when installed on Cisco Nexus 9000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
BehobenCisco NX-OS System Software in ACI Mode 16.0(9d) when installed on Cisco Nexus 9000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
BehobenCisco NX-OS System Software in ACI Mode 16.1(1f) when installed on Cisco Nexus 9000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
BehobenCisco NX-OS System Software in ACI Mode 16.1(2f) when installed on Cisco Nexus 9000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
BehobenCisco NX-OS System Software in ACI Mode 16.1(2g) when installed on Cisco Nexus 9000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
BehobenCisco NX-OS System Software in ACI Mode 16.1(3f) when installed on Cisco Nexus 9000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
BehobenCisco NX-OS System Software in ACI Mode 16.1(3g) when installed on Cisco Nexus 9000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com

cvss

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

7.4

010

Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen⚠ Quellen uneinig · medium–high · 6.8–7.4

v3.17.4highCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:Hsecondary · ENISA EU

v3.17.4highCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:Hsecondary · psirt@cisco.com USAusnutzbarkeit 2.8 · Auswirkung 4

v3.16.8mediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

v3.17.4highCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:Hsecondary · Cisco PSIRT US

SSVC

Eine Handlungsentscheidung — aus Ausnutzung und Auswirkung.

Trackcoordinatorcisa_ssvcUS

schwächen

Die CWE-Schwächeklassen, zu denen dies gehört.

CWE-805US

betroffene Produkte (110)

Betroffene Produkte und Versionsbereiche.

Cisco NX-OS Link Layer Discovery Protocolalle Versionencert_bundDEcpe:/o:cisco:nx-os:link_layer_discovery_protocol
Cisco NX-OS Software 10.3(1) when installed on Cisco Nexus 3000 Series Switchesalle Versionencisco_csafUS
Cisco NX-OS Software 10.3(1) when installed on Cisco Nexus 9000 Series Switchesalle Versionencisco_csafUS
Cisco NX-OS Software 10.3(2) when installed on Cisco Nexus 3000 Series Switchesalle Versionencisco_csafUS
Cisco NX-OS Software 10.3(2) when installed on Cisco Nexus 9000 Series Switchesalle Versionencisco_csafUS
Cisco NX-OS Software 10.3(3) when installed on Cisco Nexus 3000 Series Switchesalle Versionencisco_csafUS
Cisco NX-OS Software 10.3(3) when installed on Cisco Nexus 9000 Series Switchesalle Versionencisco_csafUS
Cisco NX-OS Software 10.3(3o) when installed on Cisco Nexus 9000 Series Switchesalle Versionencisco_csafUS
Cisco NX-OS Software 10.3(3p) when installed on Cisco Nexus 9000 Series Switchesalle Versionencisco_csafUS
Cisco NX-OS Software 10.3(3q) when installed on Cisco Nexus 9000 Series Switchesalle Versionencisco_csafUS
Cisco NX-OS Software 10.3(3r) when installed on Cisco Nexus 9000 Series Switchesalle Versionencisco_csafUS
Cisco NX-OS Software 10.3(3w) when installed on Cisco Nexus 9000 Series Switchesalle Versionencisco_csafUS
Cisco NX-OS Software 10.3(3x) when installed on Cisco Nexus 9000 Series Switchesalle Versionencisco_csafUS
Cisco NX-OS Software 10.3(4) when installed on Cisco Nexus 3000 Series Switchesalle Versionencisco_csafUS
Cisco NX-OS Software 10.3(4) when installed on Cisco Nexus 9000 Series Switchesalle Versionencisco_csafUS
Cisco NX-OS Software 10.3(4a) when installed on Cisco Nexus 3000 Series Switchesalle Versionencisco_csafUS
Cisco NX-OS Software 10.3(4a) when installed on Cisco Nexus 9000 Series Switchesalle Versionencisco_csafUS
Cisco NX-OS Software 10.3(4g) when installed on Cisco Nexus 9000 Series Switchesalle Versionencisco_csafUS
Cisco NX-OS Software 10.3(4h) when installed on Cisco Nexus 9000 Series Switchesalle Versionencisco_csafUS
Cisco NX-OS Software 10.3(99w) when installed on Cisco Nexus 9000 Series Switchesalle Versionencisco_csafUS

20 von 110 angezeigt

Advisories (2)

Hersteller- und Ökosystem-Meldungen dazu.

WID-SEC-W-2026-0521Cisco NX-OS Software Link Layer Discovery Protocol: Schwachstelle ermöglicht Denial of ServiceDeutsch2026-02-25csaf · cert_bundDE
Ein Angreifer aus einem angrenzenden Netzwerk kann eine Schwachstelle in Cisco NX-OS ausnutzen, um einen Denial of Service Angriff durchzuführen.
cisco-sa-n3kn9k_aci_lldp_dos-NdgRrrA3Cisco NX-OS Software Link Layer Discovery Protocol Denial of Service Vulnerability2026-02-25csaf · cisco_csafUS
A vulnerability in the Link Layer Discovery Protocol (LLDP) feature of Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to cause the LLDP process to restart, which could cause an affected device to reload unexpectedly. This vulnerability is due to improper handling of specific fields in an LLDP frame. An attacker could exploit this vulnerability by sending a crafted LLDP packet to an interface of an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a denial of service (DoS) condition. Note: LLDP is a Layer 2 link protocol. To exploit this vulnerability, an attacker would need to be directly connected to an interface of an affected device, either physically or logically (for example, through a Layer 2 Tunnel configured to transport the LLDP protocol). Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. This advisory is part of the February 2026 Cisco FXOS and NX-OS Software Security Advisory Bundled Publication. For a complete list of the advisories and links to them, see Cisco Event Response: February 2026 Semiannual Cisco FXOS and NX-OS Software Security Advisory Bundled Publication ["https://sec.cloudapps.cisco.com/security/center/viewErp.x?alertId=ERP-75740"].

auch bekannt als (3)

Weitere Namen und Kennungen dieser Entität.

quellen

Welche Quellen diesen Datensatz belegen und wann.

cnnvd enisa_euvd cert_bund cisco_csaf NVD CVE.org MITRE

veröffentlicht 2026-02-25geändert 2026-06-17

Referenzen (3)

Externe Belege — Patches, Meldungen, Analysen.

scry

Angreifer nutzen Schwachstellen wie diese gegen im Internet exponierte Dienste aus. Sehen Sie mit einem kostenlosen Passiv-Scan, was exponiert ist.

Kostenloser Scan