CVE-2025-20336
published 2025-09-03CVE-2025-20336: A vulnerability in the directory permissions of Cisco Desk Phone 9800 Series, Cisco IP Phone 7800 and 8800 Series, and Cisco Video Phone 8875 could allow an…
PriorityP348high7.5CVSS 3.1
AVNACLPRNUINSUCHINAN
EPSS
0.35%
27.1th percentile
A vulnerability in the directory permissions of Cisco Desk Phone 9800 Series, Cisco IP Phone 7800 and 8800 Series, and Cisco Video Phone 8875 could allow an unauthenticated, remote attacker to access sensitive information on an affected device.
This vulnerability exists because the product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. An attacker could exploit this vulnerability by sending a crafted packet to the IP address of a device that has Web Access enabled. A successful exploit could allow the attacker to access sensitive information from the device.
Note: To exploit this vulnerability, Web Access must be enabled on the phone. Web Access is disabled by default.
Affected
104 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| cisco | cisco_session_initiation_protocol_software | — | — |
| cisco | cisco_session_initiation_protocol_software | — | — |
| cisco | cisco_session_initiation_protocol_software | — | — |
| cisco | cisco_session_initiation_protocol_software | — | — |
| cisco | cisco_session_initiation_protocol_software | — | — |
| cisco | cisco_session_initiation_protocol_software | — | — |
| cisco | cisco_session_initiation_protocol_software | — | — |
| cisco | cisco_session_initiation_protocol_software | — | — |
| cisco | cisco_session_initiation_protocol_software | — | — |
| cisco | cisco_session_initiation_protocol_software | — | — |
| cisco | cisco_session_initiation_protocol_software | — | — |
| cisco | cisco_session_initiation_protocol_software | — | — |
| cisco | cisco_session_initiation_protocol_software | — | — |
| cisco | cisco_session_initiation_protocol_software | — | — |
| cisco | cisco_session_initiation_protocol_software | — | — |
| cisco | cisco_session_initiation_protocol_software | — | — |
| cisco | cisco_session_initiation_protocol_software | — | — |
| cisco | cisco_session_initiation_protocol_software | — | — |
| cisco | cisco_session_initiation_protocol_software | — | — |
| cisco | cisco_session_initiation_protocol_software | — | — |
| cisco | cisco_session_initiation_protocol_software | — | — |
| cisco | cisco_session_initiation_protocol_software | — | — |
| cisco | cisco_session_initiation_protocol_software | — | — |
| cisco | cisco_session_initiation_protocol_software | — | — |
| cisco | cisco_session_initiation_protocol_software | — | — |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
vendor_cisco5.3MEDIUM
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Cisco
Cisco Desk Phone 9800 Series, IP Phone 7800 and 8800 Series, and Video Phone 8875 with SIP Software Vulnerabilities
vendor_cisco·2025-09-03·CVSS 5.3
CVE-2025-20335 [MEDIUM] CWE-200 Cisco Desk Phone 9800 Series, IP Phone 7800 and 8800 Series, and Video Phone 8875 with SIP Software Vulnerabilities
Cisco Desk Phone 9800 Series, IP Phone 7800 and 8800 Series, and Video Phone 8875 with SIP Software Vulnerabilities
Multiple vulnerabilities in the directory permissions of Cisco Desk Phone 9800 Series, Cisco IP Phone 7800 and 8800 Series, and Cisco Video Phone 8875 with Cisco Session Initiation Protocol (SIP) Software could allow an unauthenticated, remote attacker to conduct arbitrary file write and information disclosure attacks on an affected device.
Note: To exploit these vulnerabilities, Web Access must be enabled on the phone. Web Access is disabled by default.
For more information about these vulnerabilities, see the Details section of this advisory.
Cisco has released software updates that address these vulnerabilities. There are no workarounds that address these vulnerabilities.
Cisco
Cisco Desk Phone 9800 Series, IP Phone 7800 and 8800 Series, and Video Phone 8875 with SIP Software Vulnerabilities
vendor_cisco·CVSS 3.1
CVE-2025-20336 Cisco Desk Phone 9800 Series, IP Phone 7800 and 8800 Series, and Video Phone 8875 with SIP Software Vulnerabilities
CVE-2025-20336: Cisco Desk Phone 9800 Series, IP Phone 7800 and 8800 Series, and Video Phone 8875 with SIP Software Vulnerabilities
Multiple vulnerabilities in the directory permissions of Cisco Desk Phone 9800 Series, Cisco IP Phone 7800 and 8800 Series, and Cisco Video Phone 8875 with Cisco Session Initiation Protocol (SIP) Software could allow an unauthenticated, remote attacker to conduct arbitrary file write and information disclosure attacks on an affected device. Note: To exploit these vulnerabilities, Web Access must be enabled on the phone. Web Access is disabled by default. For more information about these vulnerabilities, see the
CVSS: 3.1
CWE: CWE-200, CWE-284, CWE-200, CWE-284
Bug IDs: CSCwn51677, CSCwn51679, CSCwn52909, CSCwn51677, CSCwn51679
GHSA
GHSA-mrpf-c78h-6xpw: A vulnerability in the directory permissions of Cisco Desk Phone 9800 Series, Cisco IP Phone 7800 and 8800 Series, and Cisco Video Phone 8875 could al
ghsa_unreviewed·2026-01-05
CVE-2025-20336 [HIGH] CWE-200 GHSA-mrpf-c78h-6xpw: A vulnerability in the directory permissions of Cisco Desk Phone 9800 Series, Cisco IP Phone 7800 and 8800 Series, and Cisco Video Phone 8875 could al
A vulnerability in the directory permissions of Cisco Desk Phone 9800 Series, Cisco IP Phone 7800 and 8800 Series, and Cisco Video Phone 8875 could allow an unauthenticated, remote attacker to access sensitive information on an affected device.
This vulnerability exists because the product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. An attacker could exploit this vulnerability by sending a crafted packet to the IP address of a device that has Web Access enabled. A successful exploit could allow the attacker to access sensitive information from the device.
Note: To exploit this vulnerability, Web Access must be enabled on the phone. Web Access is disabled by default.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2025-09-03
Published