CVE-2025-20158 json
Cisco Video Phone 8875 and Desk Phone 9800 Series Information Disclosure Vulnerability
published 2025-02-19 20 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-4670
- cvss
- 4.4
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 4%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- cisco video_phone_8875_firmware 3.3\(1\)
- cisco desk_phone_9871_firmware 3.3\(1\)
- cisco desk_phone_9841_firmware 3.3\(1\)
- cisco desk_phone_9851_firmware 3.3\(1\)
- cisco desk_phone_9861_firmware 3.3\(1\)
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 20 mo ago
Exploit prediction
0.16% chance of exploitation in the next 30 days, higher than 4% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 4.4 | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N |
Affected products
- Cisco Cisco Session Initiation Protocol (SIP) Software
Classification
- Weakness
-
- CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
References
Sources
- CVE List CVE-2025-20158
- NVD CVE-2025-20158
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