Logo
-

Byte Open Security

(ByteOS Network)

Log In

Sign Up

ByteOS

Security
Vulnerability Details
Registries
Custom Views
Weaknesses
Attack Patterns
Filters & Tools
NVD Vulnerability Details :
CVE-2025-20336
Analyzed
More InfoOfficial Page
Source-psirt@cisco.com
View Known Exploited Vulnerability (KEV) details
Published At-03 Sep, 2025 | 18:15
Updated At-05 Jan, 2026 | 14:49

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.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary3.15.3MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Primary3.17.5HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Type: Secondary
Version: 3.1
Base score: 5.3
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Type: Primary
Version: 3.1
Base score: 7.5
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CPE Matches

Cisco Systems, Inc.
cisco
>>desk_phone_9841_firmware>>Versions from 3.0\(1\)(inclusive) to 3.3\(1\)(exclusive)
cpe:2.3:o:cisco:desk_phone_9841_firmware:*:*:*:*:*:*:*:*
Cisco Systems, Inc.
cisco
>>desk_phone_9841>>-
cpe:2.3:h:cisco:desk_phone_9841:-:*:*:*:*:*:*:*
Cisco Systems, Inc.
cisco
>>desk_phone_9851_firmware>>Versions from 3.0\(1\)(inclusive) to 3.3\(1\)(exclusive)
cpe:2.3:o:cisco:desk_phone_9851_firmware:*:*:*:*:*:*:*:*
Cisco Systems, Inc.
cisco
>>desk_phone_9851>>-
cpe:2.3:h:cisco:desk_phone_9851:-:*:*:*:*:*:*:*
Cisco Systems, Inc.
cisco
>>desk_phone_9861_firmware>>Versions from 3.0\(1\)(inclusive) to 3.3\(1\)(exclusive)
cpe:2.3:o:cisco:desk_phone_9861_firmware:*:*:*:*:*:*:*:*
Cisco Systems, Inc.
cisco
>>desk_phone_9861>>-
cpe:2.3:h:cisco:desk_phone_9861:-:*:*:*:*:*:*:*
Cisco Systems, Inc.
cisco
>>desk_phone_9871_firmware>>Versions from 3.0\(1\)(inclusive) to 3.3\(1\)(exclusive)
cpe:2.3:o:cisco:desk_phone_9871_firmware:*:*:*:*:*:*:*:*
Cisco Systems, Inc.
cisco
>>desk_phone_9871>>-
cpe:2.3:h:cisco:desk_phone_9871:-:*:*:*:*:*:*:*
Cisco Systems, Inc.
cisco
>>ip_phone_8841_firmware>>Versions before 14.3\(1\)(exclusive)
cpe:2.3:o:cisco:ip_phone_8841_firmware:*:*:*:*:*:*:*:*
Cisco Systems, Inc.
cisco
>>ip_phone_8841_firmware>>14.3\(1\)
cpe:2.3:o:cisco:ip_phone_8841_firmware:14.3\(1\):-:*:*:*:*:*:*
Cisco Systems, Inc.
cisco
>>ip_phone_8841_firmware>>14.3\(1\)
cpe:2.3:o:cisco:ip_phone_8841_firmware:14.3\(1\):sr1:*:*:*:*:*:*
Cisco Systems, Inc.
cisco
>>ip_phone_8841>>-
cpe:2.3:h:cisco:ip_phone_8841:-:*:*:*:*:*:*:*
Cisco Systems, Inc.
cisco
>>ip_phone_7811_firmware>>Versions before 14.3\(1\)(exclusive)
cpe:2.3:o:cisco:ip_phone_7811_firmware:*:*:*:*:*:*:*:*
Cisco Systems, Inc.
cisco
>>ip_phone_7811_firmware>>14.3\(1\)
cpe:2.3:o:cisco:ip_phone_7811_firmware:14.3\(1\):-:*:*:*:*:*:*
Cisco Systems, Inc.
cisco
>>ip_phone_7811_firmware>>14.3\(1\)
cpe:2.3:o:cisco:ip_phone_7811_firmware:14.3\(1\):sr1:*:*:*:*:*:*
Cisco Systems, Inc.
cisco
>>ip_phone_7811>>-
cpe:2.3:h:cisco:ip_phone_7811:-:*:*:*:*:*:*:*
Cisco Systems, Inc.
cisco
>>ip_phone_7821_firmware>>Versions before 14.3\(1\)(exclusive)
cpe:2.3:o:cisco:ip_phone_7821_firmware:*:*:*:*:*:*:*:*
Cisco Systems, Inc.
cisco
>>ip_phone_7821_firmware>>14.3\(1\)
cpe:2.3:o:cisco:ip_phone_7821_firmware:14.3\(1\):-:*:*:*:*:*:*
Cisco Systems, Inc.
cisco
>>ip_phone_7821_firmware>>14.3\(1\)
cpe:2.3:o:cisco:ip_phone_7821_firmware:14.3\(1\):sr1:*:*:*:*:*:*
Cisco Systems, Inc.
cisco
>>ip_phone_7821>>-
cpe:2.3:h:cisco:ip_phone_7821:-:*:*:*:*:*:*:*
Cisco Systems, Inc.
cisco
>>ip_phone_7841_firmware>>Versions before 14.3\(1\)(exclusive)
cpe:2.3:o:cisco:ip_phone_7841_firmware:*:*:*:*:*:*:*:*
Cisco Systems, Inc.
cisco
>>ip_phone_7841_firmware>>14.3\(1\)
cpe:2.3:o:cisco:ip_phone_7841_firmware:14.3\(1\):-:*:*:*:*:*:*
Cisco Systems, Inc.
cisco
>>ip_phone_7841_firmware>>14.3\(1\)
cpe:2.3:o:cisco:ip_phone_7841_firmware:14.3\(1\):sr1:*:*:*:*:*:*
Cisco Systems, Inc.
cisco
>>ip_phone_7841>>-
cpe:2.3:h:cisco:ip_phone_7841:-:*:*:*:*:*:*:*
Cisco Systems, Inc.
cisco
>>ip_phone_7861_firmware>>Versions before 14.3\(1\)(exclusive)
cpe:2.3:o:cisco:ip_phone_7861_firmware:*:*:*:*:*:*:*:*
Cisco Systems, Inc.
cisco
>>ip_phone_7861_firmware>>14.3\(1\)
cpe:2.3:o:cisco:ip_phone_7861_firmware:14.3\(1\):-:*:*:*:*:*:*
Cisco Systems, Inc.
cisco
>>ip_phone_7861_firmware>>14.3\(1\)
cpe:2.3:o:cisco:ip_phone_7861_firmware:14.3\(1\):sr1:*:*:*:*:*:*
Cisco Systems, Inc.
cisco
>>ip_phone_7861>>-
cpe:2.3:h:cisco:ip_phone_7861:-:*:*:*:*:*:*:*
Cisco Systems, Inc.
cisco
>>ip_phone_8811_firmware>>Versions before 14.3\(1\)(exclusive)
cpe:2.3:o:cisco:ip_phone_8811_firmware:*:*:*:*:*:*:*:*
Cisco Systems, Inc.
cisco
>>ip_phone_8811_firmware>>14.3\(1\)
cpe:2.3:o:cisco:ip_phone_8811_firmware:14.3\(1\):-:*:*:*:*:*:*
Cisco Systems, Inc.
cisco
>>ip_phone_8811_firmware>>14.3\(1\)
cpe:2.3:o:cisco:ip_phone_8811_firmware:14.3\(1\):sr1:*:*:*:*:*:*
Cisco Systems, Inc.
cisco
>>ip_phone_8811>>-
cpe:2.3:h:cisco:ip_phone_8811:-:*:*:*:*:*:*:*
Cisco Systems, Inc.
cisco
>>ip_phone_8845_firmware>>Versions before 14.3\(1\)(exclusive)
cpe:2.3:o:cisco:ip_phone_8845_firmware:*:*:*:*:*:*:*:*
Cisco Systems, Inc.
cisco
>>ip_phone_8845_firmware>>14.3\(1\)
cpe:2.3:o:cisco:ip_phone_8845_firmware:14.3\(1\):-:*:*:*:*:*:*
Cisco Systems, Inc.
cisco
>>ip_phone_8845_firmware>>14.3\(1\)
cpe:2.3:o:cisco:ip_phone_8845_firmware:14.3\(1\):sr1:*:*:*:*:*:*
Cisco Systems, Inc.
cisco
>>ip_phone_8845>>-
cpe:2.3:h:cisco:ip_phone_8845:-:*:*:*:*:*:*:*
Cisco Systems, Inc.
cisco
>>ip_phone_8851_firmware>>Versions before 14.3\(1\)(exclusive)
cpe:2.3:o:cisco:ip_phone_8851_firmware:*:*:*:*:*:*:*:*
Cisco Systems, Inc.
cisco
>>ip_phone_8851_firmware>>14.3\(1\)
cpe:2.3:o:cisco:ip_phone_8851_firmware:14.3\(1\):-:*:*:*:*:*:*
Cisco Systems, Inc.
cisco
>>ip_phone_8851_firmware>>14.3\(1\)
cpe:2.3:o:cisco:ip_phone_8851_firmware:14.3\(1\):sr1:*:*:*:*:*:*
Cisco Systems, Inc.
cisco
>>ip_phone_8851>>-
cpe:2.3:h:cisco:ip_phone_8851:-:*:*:*:*:*:*:*
Cisco Systems, Inc.
cisco
>>ip_phone_8851nr_firmware>>Versions before 14.3\(1\)(exclusive)
cpe:2.3:o:cisco:ip_phone_8851nr_firmware:*:*:*:*:*:*:*:*
Cisco Systems, Inc.
cisco
>>ip_phone_8851nr_firmware>>14.3\(1\)
cpe:2.3:o:cisco:ip_phone_8851nr_firmware:14.3\(1\):-:*:*:*:*:*:*
Cisco Systems, Inc.
cisco
>>ip_phone_8851nr_firmware>>14.3\(1\)
cpe:2.3:o:cisco:ip_phone_8851nr_firmware:14.3\(1\):sr1:*:*:*:*:*:*
Cisco Systems, Inc.
cisco
>>ip_phone_8851nr>>-
cpe:2.3:h:cisco:ip_phone_8851nr:-:*:*:*:*:*:*:*
Cisco Systems, Inc.
cisco
>>ip_phone_8861_firmware>>Versions before 14.3\(1\)(exclusive)
cpe:2.3:o:cisco:ip_phone_8861_firmware:*:*:*:*:*:*:*:*
Cisco Systems, Inc.
cisco
>>ip_phone_8861_firmware>>14.3\(1\)
cpe:2.3:o:cisco:ip_phone_8861_firmware:14.3\(1\):-:*:*:*:*:*:*
Cisco Systems, Inc.
cisco
>>ip_phone_8861_firmware>>14.3\(1\)
cpe:2.3:o:cisco:ip_phone_8861_firmware:14.3\(1\):sr1:*:*:*:*:*:*
Cisco Systems, Inc.
cisco
>>ip_phone_8861>>-
cpe:2.3:h:cisco:ip_phone_8861:-:*:*:*:*:*:*:*
Cisco Systems, Inc.
cisco
>>ip_phone_8865_firmware>>Versions before 14.3\(1\)(exclusive)
cpe:2.3:o:cisco:ip_phone_8865_firmware:*:*:*:*:*:*:*:*
Cisco Systems, Inc.
cisco
>>ip_phone_8865_firmware>>14.3\(1\)
cpe:2.3:o:cisco:ip_phone_8865_firmware:14.3\(1\):-:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-200Secondarypsirt@cisco.com
CWE ID: CWE-200
Type: Secondary
Source: psirt@cisco.com
Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References
HyperlinkSourceResource
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-phone-write-g3kcC5Dfpsirt@cisco.com
Vendor Advisory
Hyperlink: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-phone-write-g3kcC5Df
Source: psirt@cisco.com
Resource:
Vendor Advisory
Change History
0Changes found

Details not found