CVE-2023-20047

mediumPriorität · verfolgen · 26EPSS 0.003 · 22. PerzentilDEEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.30% (22nd) EPSS

CVSS 6.5 · medium

Is it mine?

10 products

Prüfe deine Angriffsfläche

Who says so?

6 sources

cnnvd · enisa_euvd · fstec_bdu · cisco_csaf

EPSS · bewertet 2026-10-27

A vulnerability in the Link Layer Discovery Protocol (LLDP) feature of Cisco Webex Room Phone and Cisco Webex Share devices could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to insufficient resource allocation. An attacker could exploit this vulnerability by sending crafted LLDP traffic to an affected device. A successful exploit could allow the attacker to exhaust the memory resources of the affected device, resulting in a crash of the LLDP process. If the affected device is configured to support LLDP only, this could cause an interruption to inbound and outbound calling. By default, these devices are configured to support both Cisco Discovery Protocol and LLDP. To recover operational state, the affected device needs a manual restart.

Behebungen

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

Ein Hersteller-Fix ist verfügbar.

BehobenCisco Webex Room Phonecisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com

cvss

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

6.5

010

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

v3.16.5mediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USAusnutzbarkeit 2.8 · Auswirkung 3.6

v3.16.5mediumAV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · FSTEC (BDU) RU

v3.16.5mediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · ENISA EU

v3.16.5mediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · psirt@cisco.com USAusnutzbarkeit 2.8 · Auswirkung 3.6

v3.16mediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

v3.16.5mediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · Cisco PSIRT US

schwächen

Die CWE-Schwächeklassen, zu denen dies gehört.

CWE-770USprimärCWE-400USCWE-401USCWE-404US

betroffene Produkte (10)

Betroffene Produkte und Versionsbereiche.

Cisco Cisco Webex Room Phonealle Versionencisco_csafUS
Cisco Cisco Webex Room Phone≤ RoomPhone 1.2.0SR2enisa_euvdEU
Cisco Cisco Webex Room Phone≤ RoomPhone 1.2.0SR1enisa_euvdEU
Cisco Cisco Webex Room Phone≤ RoomPhone 1.1.0enisa_euvdEU
Cisco Cisco Webex Room Phone≤ RoomPhone 1.2.0enisa_euvdEU
Cisco Systems Inc. Webex Room Phone≤ 1.2.0fstec_bduRU
Cisco Systems Inc. Webex Share≤ 1.2.0fstec_bduRU
cisco sip ip phone software≤ 1.2.0nvdUScpe:2.3:a:cisco:sip_ip_phone_software:*:*:*:*:*:*:*:*
cisco webex room phone firmware≤ 1.2.0nvdUScpe:2.3:o:cisco:webex_room_phone_firmware:*:*:*:*:*:*:*:*
cisco webex share firmware≤ 1.2.0nvdUScpe:2.3:o:cisco:webex_share_firmware:*:*:*:*:*:*:*:*

Advisories (2)

Hersteller- und Ökosystem-Meldungen dazu.

WID-SEC-W-2023-0077Cisco WebEx: Schwachstelle ermöglicht Offenlegung von InformationenDeutsch2023-01-11csaf · cert_bundDE
Ein Angreifer kann eine Schwachstelle in Cisco WebEx ausnutzen, um Informationen offenzulegen.
cisco-sa-lldp-memlk-McOecPTCisco Webex Room Phone and Cisco Webex Share Link Layer Discovery Protocol Memory Leak Vulnerability2023-01-11csaf · cisco_csafUS
A vulnerability in the Link Layer Discovery Protocol (LLDP) feature of Cisco Webex Room Phone and Cisco Webex Share devices could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to insufficient resource allocation. An attacker could exploit this vulnerability by sending crafted LLDP traffic to an affected device. A successful exploit could allow the attacker to exhaust the memory resources of the affected device, resulting in a crash of the LLDP process. If the affected device is configured to support LLDP only, this could cause an interruption to inbound and outbound calling. By default, these devices are configured to support both Cisco Discovery Protocol and LLDP. To recover operational state, the affected device needs a manual restart. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

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 cert_bund NVD CVE.org MITRE

veröffentlicht 2023-01-20geändert 2026-06-17

verwandt (3,270)

Verwandte Einträge.

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A vulnerability in the Distance Vector Multicast Routing Protocol (DVMRP) feature of Cisco IOS XR Software could allow an unauthenticated, remote attacker to exhaust process memory…
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+3265 weitere

Referenzen (5)

Externe Belege — Patches, Meldungen, Analysen.

scry

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