CVE-2025-20336

HIGH EPSS 26.8%
Published Sep 3, 202510mo ago · Modified Jun 17, 20262w ago
7.5 CVSS 3.1
High
Find Similar
Published Sep 3, 2025 10mo ago
Last Modified Jun 17, 2026 2w ago

Description

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.

CVSS Details

Base Score
7.5
Exploitability
3.9
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity None
Availability None

Threat Intelligence

EPSS Exploit Probability
26.8% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-200 Exposure of Sensitive Information to an Unauthorized Actor Information Exposure

Affected Products 65

VendorProductVersionRange
ciscodesk_phone_9841_firmware*≥3.0\(1\)  –  <3.3\(1\)
ciscodesk_phone_9841*any
ciscodesk_phone_9851_firmware*≥3.0\(1\)  –  <3.3\(1\)
ciscodesk_phone_9851*any
ciscodesk_phone_9861_firmware*≥3.0\(1\)  –  <3.3\(1\)
ciscodesk_phone_9861*any
ciscodesk_phone_9871_firmware*≥3.0\(1\)  –  <3.3\(1\)
ciscodesk_phone_9871*any
ciscoip_phone_8841_firmware* <14.3\(1\)
ciscoip_phone_8841_firmware14.3\(1\)any
ciscoip_phone_8841_firmware14.3\(1\)any
ciscoip_phone_8841*any
ciscoip_phone_7811_firmware* <14.3\(1\)
ciscoip_phone_7811_firmware14.3\(1\)any
ciscoip_phone_7811_firmware14.3\(1\)any
ciscoip_phone_7811*any
ciscoip_phone_7821_firmware* <14.3\(1\)
ciscoip_phone_7821_firmware14.3\(1\)any
ciscoip_phone_7821_firmware14.3\(1\)any
ciscoip_phone_7821*any
ciscoip_phone_7841_firmware* <14.3\(1\)
ciscoip_phone_7841_firmware14.3\(1\)any
ciscoip_phone_7841_firmware14.3\(1\)any
ciscoip_phone_7841*any
ciscoip_phone_7861_firmware* <14.3\(1\)
ciscoip_phone_7861_firmware14.3\(1\)any
ciscoip_phone_7861_firmware14.3\(1\)any
ciscoip_phone_7861*any
ciscoip_phone_8811_firmware* <14.3\(1\)
ciscoip_phone_8811_firmware14.3\(1\)any
ciscoip_phone_8811_firmware14.3\(1\)any
ciscoip_phone_8811*any
ciscoip_phone_8845_firmware* <14.3\(1\)
ciscoip_phone_8845_firmware14.3\(1\)any
ciscoip_phone_8845_firmware14.3\(1\)any
ciscoip_phone_8845*any
ciscoip_phone_8851_firmware* <14.3\(1\)
ciscoip_phone_8851_firmware14.3\(1\)any
ciscoip_phone_8851_firmware14.3\(1\)any
ciscoip_phone_8851*any
ciscoip_phone_8851nr_firmware* <14.3\(1\)
ciscoip_phone_8851nr_firmware14.3\(1\)any
ciscoip_phone_8851nr_firmware14.3\(1\)any
ciscoip_phone_8851nr*any
ciscoip_phone_8861_firmware* <14.3\(1\)
ciscoip_phone_8861_firmware14.3\(1\)any
ciscoip_phone_8861_firmware14.3\(1\)any
ciscoip_phone_8861*any
ciscoip_phone_8865_firmware* <14.3\(1\)
ciscoip_phone_8865_firmware14.3\(1\)any
ciscoip_phone_8865_firmware14.3\(1\)any
ciscoip_phone_8865*any
ciscovideo_phone_8875_firmware* <2.3\(1\)
ciscovideo_phone_8875_firmware*≥3.0\(1\)  –  <3.3\(1\)
ciscovideo_phone_8875_firmware2.3\(1\)any
ciscovideo_phone_8875_firmware2.3\(1\)any
ciscovideo_phone_8875*any
ciscoip_phone_8821_firmware* <11.0\(6\)
ciscoip_phone_8821_firmware11.0\(6\)any
ciscoip_phone_8821_firmware11.0\(6\)any
ciscoip_phone_8821_firmware11.0\(6\)any
ciscoip_phone_8821_firmware11.0\(6\)any
ciscoip_phone_8821_firmware11.0\(6\)any
ciscoip_phone_8821_firmware11.0\(6\)any
ciscoip_phone_8821*any

References 1

  • sec.cloudapps.cisco.com https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-phone-write-g3kcC5Df
    Vendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.