#VU104102 Information disclosure in Cisco Systems, Inc products - CVE-2025-20158

Vulnerability identifier: #VU104102

Vulnerability risk: Low

CVSSv4.0: 4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2025-20158

CWE-ID: CWE-200

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Video Phone 8875
Hardware solutions / Office equipment, IP-phones, print servers
Desk Phone 9800 Series
Hardware solutions / Office equipment, IP-phones, print servers
SIP IP Phone Software
Other software / Other software solutions

Vendor: Cisco Systems, Inc

Description

The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists due to insufficient validation of user-supplied input in the debug shell. A local administrator can send a specially crafted SSH client command and gain unauthorized access to sensitive information on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Video Phone 8875: All versions

Desk Phone 9800 Series: All versions

SIP IP Phone Software: 3.2(1)

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External links
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-phone-info-disc-YyxsWStK

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.