Information disclosure in Cisco Session Initiation Protocol (Sip) Software
CVE-2025-20158
A vulnerability in the debug shell of Cisco Video Phone 8875 and Cisco Desk Phone 9800 Series could allow an authenticated, local attacker to access sensitive information on an affected device. To exploit this vulnerability, the attacker must have valid administrative credentials with SSH access on the affected device. SSH access is disabled by default. This vulnerability is due to insufficient validation of user-supplied input by the debug shell of an affected device. An attacker could exploit this vulnerability by sending a crafted SSH client command to the CLI. A successful exploit could allow the attacker to access sensitive information on the underlying operating system.
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.4 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.002 (4.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 4th percentile — 4.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- Cisco Session Initiation Protocol (Sip) Software — versions 3.1(1), 3.0(1), 2.3(1)
- Cisco Desk Phone 9841
- Cisco Desk Phone 9841 Firmware
- Cisco Desk Phone 9851
- Cisco Desk Phone 9851 Firmware
- Cisco Desk Phone 9861
- Cisco Desk Phone 9861 Firmware
- Cisco Desk Phone 9871
- Cisco Desk Phone 9871 Firmware
- Cisco Video Phone 8875
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2025-20158?
- CVE-2025-20158 is a medium-severity vulnerability in Cisco Session Initiation Protocol (Sip) Software, classified under Information Disclosure. CVSS score: 4.4/10. Published 2025-02-19.
- How severe is CVE-2025-20158?
- Medium severity. CVSS v3 base score is 4.4 out of 10.