Cisco Desk Phone 9800 Series, IP Phone 7800 and 8800 Series, and Video Phone 8875 with SIP Firmware Denial of Service Vulnerability (Cisco Cisco Session Initiation Protocol (SIP) Software)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.48 % · percentile 41 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- cisco
- NVD status
- Analyzed
Description
A vulnerability in the web UI of Cisco Desk Phone 9800 Series, Cisco IP Phone 7800 and 8800 Series, and Cisco Video Phone 8875 running Cisco SIP Software could allow an unauthenticated, remote attacker to cause a DoS condition on an affected device. This vulnerability is due to a buffer overflow when an affected device processes HTTP packets. An attacker could exploit this vulnerability by sending crafted HTTP input to the device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition. Note: To exploit this vulnerability, the phone must be registered to Cisco Unified Communications Manager and have Web Access enabled. Web Access is disabled by default.
Weaknesses (CWE)
- CWE-121 — Stack-based Buffer Overflow
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | cisco |
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | NVD · psirt@cisco.com (Secondary) |
European references
- ENISA EUVD · EUVD-2025-34667
- GCVE · GCVE-0-2025-20350
CERT-FR advisories
- CERTFR-2025-AVI-0884 — Multiples vulnérabilités dans les produits Cisco · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:cisco:desk_phone_9871_firmware:*:*:*:*:*:*:*:*≥ 3.0\(1\) ≤ 3.2\(1\)cpe:2.3:o:cisco:desk_phone_9841_firmware:*:*:*:*:*:*:*:*≥ 3.0\(1\) ≤ 3.2\(1\)cpe:2.3:o:cisco:desk_phone_9851_firmware:*:*:*:*:*:*:*:*≥ 3.0\(1\) ≤ 3.2\(1\)cpe:2.3:o:cisco:desk_phone_9861_firmware:*:*:*:*:*:*:*:*≥ 3.0\(1\) ≤ 3.2\(1\)cpe:2.3:o:cisco:ip_phone_8865_firmware:*:*:*:*:*:*:*:*< 14.3\(1\)cpe:2.3:o:cisco:ip_phone_8865_firmware:14.3\(1\):*:*:*:*:*:*:*cpe:2.3:o:cisco:ip_phone_8865_firmware:14.3\(1\):sr1:*:*:*:*:*:*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_8832_firmware:*:*:*:*:*:*:*:*< 14.3\(1\)cpe:2.3:o:cisco:ip_phone_8832_firmware:14.3\(1\):*:*:*:*:*:*:*cpe:2.3:o:cisco:ip_phone_8832_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_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:video_phone_8875_firmware:*:*:*:*:*:*:*:*< 2.3\(1\)cpe:2.3:o:cisco:video_phone_8875_firmware:*:*:*:*:*:*:*:*≥ 3.0\(1\) ≤ 3.2\(1\)cpe:2.3:o:cisco:video_phone_8875_firmware:2.3\(1\):*:*:*:*:*:*:*- +28 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 |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| 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 |