Cisco Desk Phone 9800 Series, IP Phone 7800 and 8800 Series, and Video Phone 8875 with SIP Firmware Information Arbitrary File Write Vulnerability (Cisco Cisco Session Initiation Protocol (SIP) Software)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.35 % · percentile 29 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- cisco
- NVD status
- Analyzed
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 write arbitrary files on an affected device. This vulnerability is due to a lack of proper authentication controls. An attacker could exploit this vulnerability by sending a crafted request to an affected device. A successful exploit could allow the attacker to perform arbitrary file writes to specific directories in the underlying operating system. Note: To exploit this vulnerability, Web Access must be enabled on the phone. Web Access is disabled by default.
Weaknesses (CWE)
- CWE-284 — Improper Access Control
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N | cisco |
| CVSS 3.1 | MEDIUM 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N | NVD · psirt@cisco.com (Secondary) |
European references
- ENISA EUVD · EUVD-2025-26614
- GCVE · GCVE-0-2025-20335
Affected configurations (NVD CPE)
cpe:2.3:o:cisco:desk_phone_9841_firmware:*:*:*:*:*:*:*:*≥ 3.0\(1\) < 3.3\(1\)cpe:2.3:o:cisco:desk_phone_9851_firmware:*:*:*:*:*:*:*:*≥ 3.0\(1\) < 3.3\(1\)cpe:2.3:o:cisco:desk_phone_9861_firmware:*:*:*:*:*:*:*:*≥ 3.0\(1\) < 3.3\(1\)cpe:2.3:o:cisco:desk_phone_9871_firmware:*:*:*:*:*:*:*:*≥ 3.0\(1\) < 3.3\(1\)cpe:2.3:o:cisco:ip_phone_7811_firmware:*:*:*:*:*:*:*:*< 14.3\(1\)cpe:2.3:o:cisco:ip_phone_7811_firmware:14.3\(1\):-:*:*:*:*:*:*cpe:2.3:o:cisco:ip_phone_7811_firmware:14.3\(1\):sr1:*:*:*:*:*:*cpe:2.3:o:cisco:ip_phone_7821_firmware:*:*:*:*:*:*:*:*< 14.3\(1\)cpe:2.3:o:cisco:ip_phone_7821_firmware:14.3\(1\):-:*:*:*:*:*:*cpe:2.3:o:cisco:ip_phone_7821_firmware:14.3\(1\):sr1:*:*:*:*:*:*cpe:2.3:o:cisco:ip_phone_7841_firmware:*:*:*:*:*:*:*:*< 14.3\(1\)cpe:2.3:o:cisco:ip_phone_7841_firmware:14.3\(1\):-:*:*:*:*:*:*cpe:2.3:o:cisco:ip_phone_7841_firmware:14.3\(1\):sr1:*:*:*:*:*:*cpe:2.3:o:cisco:ip_phone_7861_firmware:*:*:*:*:*:*:*:*< 14.3\(1\)cpe:2.3:o:cisco:ip_phone_7861_firmware:14.3\(1\):-:*:*:*:*:*:*cpe:2.3:o:cisco:ip_phone_7861_firmware:14.3\(1\):sr1:*:*:*:*:*:*cpe:2.3:o:cisco:ip_phone_8811_firmware:*:*:*:*:*:*:*:*< 14.3\(1\)cpe:2.3:o:cisco:ip_phone_8811_firmware:14.3\(1\):-:*:*:*:*:*:*cpe:2.3:o:cisco:ip_phone_8811_firmware:14.3\(1\):sr1:*:*:*:*:*:*cpe:2.3:o:cisco:ip_phone_8841_firmware:*:*:*:*:*:*:*:*< 14.3\(1\)cpe:2.3:o:cisco:ip_phone_8841_firmware:14.3\(1\):-:*:*:*:*:*:*cpe:2.3:o:cisco:ip_phone_8841_firmware:14.3\(1\):sr1:*:*:*:*:*:*cpe:2.3:o:cisco:ip_phone_8845_firmware:*:*:*:*:*:*:*:*< 14.3\(1\)cpe:2.3:o:cisco:ip_phone_8845_firmware:14.3\(1\):-:*:*:*:*:*:*cpe:2.3:o:cisco:ip_phone_8845_firmware:14.3\(1\):sr1:*:*:*:*:*:*cpe:2.3:o:cisco:ip_phone_8851_firmware:*:*:*:*:*:*:*:*< 14.3\(1\)cpe:2.3:o:cisco:ip_phone_8851_firmware:14.3\(1\):-:*:*:*:*:*:*cpe:2.3:o:cisco:ip_phone_8851_firmware:14.3\(1\):sr1:*:*:*:*:*:*cpe:2.3:o:cisco:ip_phone_8851nr_firmware:*:*:*:*:*:*:*:*< 14.3\(1\)cpe:2.3:o:cisco:ip_phone_8851nr_firmware:14.3\(1\):-:*:*:*:*:*:*cpe:2.3:o:cisco:ip_phone_8851nr_firmware:14.3\(1\):sr1:*:*:*:*:*:*cpe:2.3:o:cisco:ip_phone_8861_firmware:*:*:*:*:*:*:*:*< 14.3\(1\)cpe:2.3:o:cisco:ip_phone_8861_firmware:14.3\(1\):-:*:*:*:*:*:*cpe:2.3:o:cisco:ip_phone_8861_firmware:14.3\(1\):sr1:*:*:*:*:*:*cpe:2.3:o:cisco:ip_phone_8865_firmware:*:*:*:*:*:*:*:*< 14.3\(1\)cpe:2.3:o:cisco:ip_phone_8865_firmware:14.3\(1\):-:*:*:*:*:*:*cpe:2.3:o:cisco:ip_phone_8865_firmware:14.3\(1\):sr1:*:*:*:*:*:*cpe:2.3:o:cisco:video_phone_8875_firmware:*:*:*:*:*:*:*:*< 2.3\(1\)cpe:2.3:o:cisco:video_phone_8875_firmware:*:*:*:*:*:*:*:*≥ 3.0\(1\) < 3.3\(1\)cpe:2.3:o:cisco:video_phone_8875_firmware:2.3\(1\):-:*:*:*:*:*:*- +8 more
Affected products
| Product | Versions |
|---|---|
| Cisco · Cisco Session Initiation Protocol (SIP) Software | affected 12.1(1)SR1 ; affected 11.5(1) ; affected 10.3(2) ; affected 10.2(2) ; affected 10.3(1) ; affected 10.3(1)SR4 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |