NVD

CVE-2024-20357 Detail

Description

A vulnerability in the XML service of Cisco IP Phone firmware could allow an unauthenticated, remote attacker to initiate phone calls on an affected device. This vulnerability exists because bounds-checking does not occur while parsing XML requests. An attacker could exploit this vulnerability by sending a crafted XML request to an affected device. A successful exploit could allow the attacker to initiate calls or play sounds on the device.

Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.

CVSS 4.0 Severity and Vector Strings:

NIST: NVD

N/A

NVD assessment not yet provided.

CVSS 3.x Severity and Vector Strings:

NIST: NVD

Base Score: N/A

NVD assessment not yet provided.

Nist CVSS score does not match with CNA score

CNA: Cisco Systems, Inc.

Base Score: 5.9 MEDIUM

Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

CVSS 2.0 Severity and Vector Strings:

National Institute of Standards and Technology

NIST: NVD

Base Score: N/A

NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ipphone-multi-vulns-cXAhCvS	CVE, Cisco Systems, Inc.	Vendor Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-787	Out-of-bounds Write	Cisco Systems, Inc.

Known Affected Software Configurations Switch to CPE 2.2

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Change History

6 change records found show changes

CVE Modified by CISA-ADP 6/17/2026 3:06:48 AM

Action

Type

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Affected

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[{"vendor":"cisco","product":"ip_phone_6871_with_multiplatform_firmware","defaultStatus":"unknown","cpes":["cpe:2.3:a:cisco:ip_phone_6871_with_multiplatform_firmware:*:*:*:*:*:*:*:*"],"versions":[{"version":"0","lessThanOrEqual":"12.0.4","versionType":"custom","status":"affected"}]},{"vendor":"cisco","product":"ip_phone_6821_with_multiplatform_firmware","defaultStatus":"unknown","cpes":["cpe:2.3:a:cisco:ip_phone_6821_with_multiplatform_firmware:*:*:*:*:*:*:*:*"],"versions":[{"version":"0","lessThanOrEqual":"12.0.4","versionType":"custom","status":"affected"}]},{"vendor":"cisco","product":"ip_phone_6851_with_multiplatform_firmware","defaultStatus":"unknown","cpes":["cpe:2.3:a:cisco:ip_phone_6851_with_multiplatform_firmware:*:*:*:*:*:*:*:*"],"versions":[{"version":"0","lessThanOrEqual":"12.0.4","versionType":"custom","status":"affected"}]},{"vendor":"cisco","product":"ip_phone_7821_with_multiplatform_firmware","defaultStatus":"unknown","cpes":["cpe:2.3:a:cisco:ip_phone_7821_with_multiplatform_firmware:*:*:*:*:*:*:*:*"],"versions":[{"version":"0","lessThanOrEqual":"12.0.4","versionType":"custom","status":"affected"}]},{"vendor":"cisco","product":"ip_phone_6861_with_multiplatform_firmware","defaultStatus":"unknown","cpes":["cpe:2.3:a:cisco:ip_phone_6861_with_multiplatform_firmware:*:*:*:*:*:*:*:*"],"versions":[{"version":"0","lessThanOrEqual":"12.0.4","versionType":"custom","status":"affected"}]},{"vendor":"cisco","product":"ip_phone_6825_with_multiplatform_firmware","defaultStatus":"unknown","cpes":["cpe:2.3:a:cisco:ip_phone_6825_with_multiplatform_firmware:*:*:*:*:*:*:*:*"],"versions":[{"version":"0","lessThanOrEqual":"12.0.4","versionType":"custom","status":"affected"}]},{"vendor":"cisco","product":"ip_phone_6841_with_multiplatform_firmware","defaultStatus":"unknown","cpes":["cpe:2.3:a:cisco:ip_phone_6841_with_multiplatform_firmware:*:*:*:*:*:*:*:*"],"versions":[{"version":"0","lessThanOrEqual":"12.0.4","versionType":"custom","status":"affected"}]},{"vendor":"cisco","product":"ip_phone_7811_with_multiplatform_firm

Added

SSVC

{"timestamp":"2024-05-01T20:55:26.843678Z","id":"CVE-2024-20357","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}

CVE Modified by Cisco Systems, Inc. 6/17/2026 3:06:48 AM

Action

Type

Old Value

New Value

Added

Affected

Record truncated, showing 2048 of 2342 characters.
View Entire Change Record

[{"vendor":"Cisco","product":"Cisco IP Phones with Multiplatform Firmware","versions":[{"version":"11.3.1 MSR2-6","status":"affected"},{"version":"11.3.1 MSR3-3","status":"affected"},{"version":"11.3.2","status":"affected"},{"version":"11.3.3","status":"affected"},{"version":"11.3.1 MSR4-1","status":"affected"},{"version":"11.3.4","status":"affected"},{"version":"11.3.5","status":"affected"},{"version":"11.3.3 MSR2","status":"affected"},{"version":"11.3.3 MSR1","status":"affected"},{"version":"11.3.6","status":"affected"},{"version":"11-3-1MPPSR4UPG","status":"affected"},{"version":"11.3.7","status":"affected"},{"version":"11-3-1MSR2UPG","status":"affected"},{"version":"11.3.6SR1","status":"affected"},{"version":"11.3.7SR1","status":"affected"},{"version":"11.3.7SR2","status":"affected"},{"version":"11.0.0","status":"affected"},{"version":"11.0.1","status":"affected"},{"version":"11.0.1 MSR1-1","status":"affected"},{"version":"11.0.2","status":"affected"},{"version":"11.1.1","status":"affected"},{"version":"11.1.1 MSR1-1","status":"affected"},{"version":"11.1.1 MSR2-1","status":"affected"},{"version":"11.1.2","status":"affected"},{"version":"11.1.2 MSR1-1","status":"affected"},{"version":"11.1.2 MSR3-1","status":"affected"},{"version":"11.2.1","status":"affected"},{"version":"11.2.2","status":"affected"},{"version":"11.2.3","status":"affected"},{"version":"11.2.3 MSR1-1","status":"affected"},{"version":"11.2.4","status":"affected"},{"version":"11.3.1","status":"affected"},{"version":"11.3.1 MSR1-3","status":"affected"},{"version":"4.5","status":"affected"},{"version":"4.6 MSR1","status":"affected"},{"version":"4.7.1","status":"affected"},{"version":"4.8.1","status":"affected"},{"version":"4.8.1 SR1","status":"affected"},{"version":"5.0.1","status":"affected"},{"version":"12.0.1","status":"affected"},{"version":"12.0.2","status":"affected"},{"version":"12.0.3","status":"affected"},{"version":"12.0.3SR1","status":"affected"},{"version":"12.0.4","status":"affected"},{"version":"5.1.1","status":"affected"},{"version"

Initial Analysis by NIST 1/05/2026 9:57:54 AM

Action	Type	New Value
Added	CPE Configuration	AND OR cpe:2.3:o:cisco:ip_phone_6821_with_multiplatform_firmware::::::::* versions up to (including) 12.0.4 OR cpe:2.3:h:cisco:ip_phone_6821:-:::::::*
Added	CPE Configuration	AND OR cpe:2.3:o:cisco:ip_phone_6841_with_multiplatform_firmware::::::::* versions up to (including) 12.0.4 OR cpe:2.3:h:cisco:ip_phone_6841:-:::::::*
Added	CPE Configuration	AND OR cpe:2.3:o:cisco:ip_phone_6851_with_multiplatform_firmware::::::::* versions up to (including) 12.0.4 OR cpe:2.3:h:cisco:ip_phone_6851:-:::::::*
Added	CPE Configuration	AND OR cpe:2.3:o:cisco:ip_phone_6861_with_multiplatform_firmware::::::::* versions up to (including) 12.0.4 OR cpe:2.3:h:cisco:ip_phone_6861:-:::::::*
Added	CPE Configuration	AND OR cpe:2.3:o:cisco:ip_phone_6871_with_multiplatform_firmware::::::::* versions up to (including) 12.0.4 OR cpe:2.3:h:cisco:ip_phone_6871:-:::::::*
Added	CPE Configuration	AND OR cpe:2.3:o:cisco:ip_phone_7811_with_multiplatform_firmware::::::::* versions up to (including) 12.0.4 OR cpe:2.3:h:cisco:ip_phone_7811:-:::::::*
Added	CPE Configuration	AND OR cpe:2.3:o:cisco:ip_phone_7821_with_multiplatform_firmware::::::::* versions up to (including) 12.0.4 OR cpe:2.3:h:cisco:ip_phone_7821:-:::::::*
Added	CPE Configuration	AND OR cpe:2.3:o:cisco:ip_phone_7832_with_multiplatform_firmware::::::::* versions up to (including) 12.0.4 OR cpe:2.3:h:cisco:ip_phone_7832:-:::::::*
Added	CPE Configuration	AND OR cpe:2.3:o:cisco:ip_phone_7841_with_multiplatform_firmware::::::::* versions up to (including) 12.0.4 OR cpe:2.3:h:cisco:ip_phone_7841:-:::::::*
Added	CPE Configuration	AND OR cpe:2.3:o:cisco:ip_phone_7861_with_multiplatform_firmware::::::::* versions up to (including) 12.0.4 OR cpe:2.3:h:cisco:ip_phone_7861:-:::::::*
Added	CPE Configuration	AND OR cpe:2.3:o:cisco:ip_phone_8811_with_multiplatform_firmware::::::::* versions up to (including) 12.0.4 OR cpe:2.3:h:cisco:ip_phone_8811:-:::::::*
Added	CPE Configuration	AND OR cpe:2.3:o:cisco:ip_phone_8832_with_multiplatform_firmware::::::::* versions up to (including) 12.0.4 OR cpe:2.3:h:cisco:ip_phone_8832:-:::::::*
Added	CPE Configuration	AND OR cpe:2.3:o:cisco:ip_phone_8841_with_multiplatform_firmware::::::::* versions up to (including) 12.0.4 OR cpe:2.3:h:cisco:ip_phone_8841:-:::::::*
Added	CPE Configuration	AND OR cpe:2.3:o:cisco:ip_phone_8845_with_multiplatform_firmware::::::::* versions up to (including) 12.0.4 OR cpe:2.3:h:cisco:ip_phone_8845:-:::::::*
Added	CPE Configuration	AND OR cpe:2.3:o:cisco:ip_phone_8851_with_multiplatform_firmware::::::::* versions up to (including) 12.0.4 OR cpe:2.3:h:cisco:ip_phone_8851:-:::::::*
Added	CPE Configuration	AND OR cpe:2.3:o:cisco:ip_phone_8861_with_multiplatform_firmware::::::::* versions up to (including) 12.0.4 OR cpe:2.3:h:cisco:ip_phone_8861:-:::::::*
Added	CPE Configuration	AND OR cpe:2.3:o:cisco:ip_phone_8865_with_multiplatform_firmware::::::::* versions up to (including) 12.0.4 OR cpe:2.3:h:cisco:ip_phone_8865:-:::::::*
Added	CPE Configuration	AND OR cpe:2.3:o:cisco:video_phone_8875_firmware::::::::* versions up to (excluding) 2.3.1.0101 OR cpe:2.3:h:cisco:video_phone_8875:-:::::::*
Added	Reference Type	CVE: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ipphone-multi-vulns-cXAhCvS Types: Vendor Advisory
Added	Reference Type	Cisco Systems, Inc.: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ipphone-multi-vulns-cXAhCvS Types: Vendor Advisory

New CVE Received from Cisco Systems, Inc. 5/01/2024 1:15:28 PM

Action	Type	New Value
Added	Description	A vulnerability in the XML service of Cisco IP Phone firmware could allow an unauthenticated, remote attacker to initiate phone calls on an affected device. This vulnerability exists because bounds-checking does not occur while parsing XML requests. An attacker could exploit this vulnerability by sending a crafted XML request to an affected device. A successful exploit could allow the attacker to initiate calls or play sounds on the device.
Added	CVSS V3.1	Cisco Systems, Inc. AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
Added	CWE	Cisco Systems, Inc. CWE-787
Added	Reference	Cisco Systems, Inc. https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ipphone-multi-vulns-cXAhCvS [No types assigned]

Quick Info

CVE Dictionary Entry:
CVE-2024-20357
NVD Published Date:
05/01/2024
NVD Last Modified:
06/17/2026
Source:
Cisco Systems, Inc.

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Information Technology Laboratory

National Vulnerability Database

National Vulnerability Database

CVE-2024-20357 Detail

Description

Metrics

References to Advisories, Solutions, and Tools

Weakness Enumeration

Known Affected Software Configurations Switch to CPE 2.2

CPEs loading, please wait.

Change History

CVE Modified by CISA-ADP 6/17/2026 3:06:48 AM

CVE Modified by Cisco Systems, Inc. 6/17/2026 3:06:48 AM

Initial Analysis by NIST 1/05/2026 9:57:54 AM

CVE Modified by CVE 11/21/2024 3:52:27 AM

CVE Modified by Cisco Systems, Inc. 5/14/2024 10:51:05 AM

New CVE Received from Cisco Systems, Inc. 5/01/2024 1:15:28 PM

Quick Info