Cisco IP Phone 6800, 7800, 8800, and 9800 Series with Multiplatform Firmware Stored Cross-Site Scripting Vulnerability
Priority LOW 22CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
A vulnerability in the web UI of Cisco Desk Phone 9800 Series, Cisco IP Phone 6800, 7800, and 8800 Series, and Cisco Video Phone 8875 with Cisco Multiplatform Firmware could allow an authenticated, remote attacker to conduct stored cross-site scripting (XSS) attacks against users. This vulnerability exists because the web UI of an affected device does not properly validate user-supplied input. An attacker could exploit this vulnerability by injecting malicious code into specific pages of the interface. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected interface or access sensitive, browser-based information. Note: To exploit this vulnerability, Web Access must be enabled on the phone and the attacker must have Admin credentials on the device. Web Access is disabled by default.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00294 22nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Cisco | Cisco IP Phones with Multiplatform Firmware | 11.1.2; 11.2.1; 11.2.3; 11.2.2; 11.2.3 MSR1-1; 11.1.2 MSR1-1; 11.1.1; 11.1.2 MSR3-1; 11.0.0; 11.1.1 MSR1-1; 11.0.1; 11.1.1 MSR2-1; 11.2.4; 11.0.1 MSR1-1; 11.0.2; 11.3.1; 11.3.1 MSR1-3; 11.3.2; 11.3.1 MSR2-6; 11-3-1MSR2UPG; 4.7.1; 4.6 MSR1; 11.3.1 MSR3-3; 4.8.1; 11.3.3; 11.3.1 MSR4-1; 11.3.4; 4.8.1 SR1; 11.3.5; 11.3.3 MSR1; 5.0.1; 11.3.3 MSR2; 11.3.6; 11-3-1MPPSR4UPG; 11.3.6SR1; 11.3.7; 5.1.1; 11.3.7SR1; 12.0.1; 12.0.2; 11.3.7SR2; 12.0.3; 12.0.3SR1; 12.0.4; 12.0.4SR1; 12.0.5; 12.0.5SR1; 12.0.3SR2 | — | No fix listed | CNA |
| Cisco | Cisco Session Initiation Protocol (SIP) Software | 3.1(1); 3.0(1); 3.1(1)SR1 | — | No fix listed | CNA |
- Cisco IP Phones with Multiplatform Firmware VendorCisco Affected 11.1.2; 11.2.1; 11.2.3; 11.2.2; 11.2.3 MSR1-1; 11.1.2 MSR1-1; 11.1.1; 11.1.2 MSR3-1; 11.0.0; 11.1.1 MSR1-1; 11.0.1; 11.1.1 MSR2-1; 11.2.4; 11.0.1 MSR1-1; 11.0.2; 11.3.1; 11.3.1 MSR1-3; 11.3.2; 11.3.1 MSR2-6; 11-3-1MSR2UPG; 4.7.1; 4.6 MSR1; 11.3.1 MSR3-3; 4.8.1; 11.3.3; 11.3.1 MSR4-1; 11.3.4; 4.8.1 SR1; 11.3.5; 11.3.3 MSR1; 5.0.1; 11.3.3 MSR2; 11.3.6; 11-3-1MPPSR4UPG; 11.3.6SR1; 11.3.7; 5.1.1; 11.3.7SR1; 12.0.1; 12.0.2; 11.3.7SR2; 12.0.3; 12.0.3SR1; 12.0.4; 12.0.4SR1; 12.0.5; 12.0.5SR1; 12.0.3SR2 Fixed in — No fix listed CNA
- Cisco Session Initiation Protocol (SIP) Software VendorCisco Affected 3.1(1); 3.0(1); 3.1(1)SR1 Fixed in — No fix listed CNA
CPE configurations NVD · 52
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:cisco:desk_phone_9841_with_multiplatform_firmware:3.1\(1\):-:*:*:*:*:*:* | 3.1(1) | Vulnerable | Cisco |
| cpe:2.3:o:cisco:desk_phone_9841_with_multiplatform_firmware:3.1\(1\):sr1:*:*:*:*:*:* | 3.1(1) sr1 | Vulnerable | Cisco |
| cpe:2.3:h:cisco:desk_phone_9841:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:desk_phone_9851_with_multiplatform_firmware:3.1\(1\):-:*:*:*:*:*:* | 3.1(1) | Vulnerable | Cisco |
| cpe:2.3:o:cisco:desk_phone_9851_with_multiplatform_firmware:3.1\(1\):sr1:*:*:*:*:*:* | 3.1(1) sr1 | Vulnerable | Cisco |
| cpe:2.3:h:cisco:desk_phone_9851:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:desk_phone_9861_with_multiplatform_firmware:3.1\(1\):-:*:*:*:*:*:* | 3.1(1) | Vulnerable | Cisco |
| cpe:2.3:o:cisco:desk_phone_9861_with_multiplatform_firmware:3.1\(1\):sr1:*:*:*:*:*:* | 3.1(1) sr1 | Vulnerable | Cisco |
| cpe:2.3:h:cisco:desk_phone_9861:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:desk_phone_9871_with_multiplatform_firmware:3.1\(1\):-:*:*:*:*:*:* | 3.1(1) | Vulnerable | Cisco |
- cpe:2.3:o:cisco:desk_phone_9841_with_multiplatform_firmware:3.1\(1\):-:*:*:*:*:*:* Versions 3.1(1) Vulnerable ·Cisco
- cpe:2.3:o:cisco:desk_phone_9841_with_multiplatform_firmware:3.1\(1\):sr1:*:*:*:*:*:* Versions 3.1(1) sr1 Vulnerable ·Cisco
- cpe:2.3:h:cisco:desk_phone_9841:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:desk_phone_9851_with_multiplatform_firmware:3.1\(1\):-:*:*:*:*:*:* Versions 3.1(1) Vulnerable ·Cisco
- cpe:2.3:o:cisco:desk_phone_9851_with_multiplatform_firmware:3.1\(1\):sr1:*:*:*:*:*:* Versions 3.1(1) sr1 Vulnerable ·Cisco
- cpe:2.3:h:cisco:desk_phone_9851:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:desk_phone_9861_with_multiplatform_firmware:3.1\(1\):-:*:*:*:*:*:* Versions 3.1(1) Vulnerable ·Cisco
- cpe:2.3:o:cisco:desk_phone_9861_with_multiplatform_firmware:3.1\(1\):sr1:*:*:*:*:*:* Versions 3.1(1) sr1 Vulnerable ·Cisco
- cpe:2.3:h:cisco:desk_phone_9861:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:desk_phone_9871_with_multiplatform_firmware:3.1\(1\):-:*:*:*:*:*:* Versions 3.1(1) Vulnerable ·Cisco
Show 42 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:cisco:desk_phone_9871_with_multiplatform_firmware:3.1\(1\):sr1:*:*:*:*:*:* | 3.1(1) sr1 | Vulnerable | Cisco |
| cpe:2.3:h:cisco:desk_phone_9871:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:ip_phone_6821_with_multiplatform_firmware:12.0\(5\):sr1:*:*:*:*:*:* | 12.0(5) sr1 | Vulnerable | Cisco |
| cpe:2.3:h:cisco:ip_phone_6821:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:ip_phone_6841_with_multiplatform_firmware:12.0\(5\):sr1:*:*:*:*:*:* | 12.0(5) sr1 | Vulnerable | Cisco |
| cpe:2.3:h:cisco:ip_phone_6841:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:ip_phone_6851_with_multiplatform_firmware:12.0\(5\):sr1:*:*:*:*:*:* | 12.0(5) sr1 | Vulnerable | Cisco |
| cpe:2.3:h:cisco:ip_phone_6851:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:ip_phone_6861_with_multiplatform_firmware:12.0\(5\):sr1:*:*:*:*:*:* | 12.0(5) sr1 | Vulnerable | Cisco |
| cpe:2.3:h:cisco:ip_phone_6861:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:ip_phone_6871_with_multiplatform_firmware:12.0\(5\):sr1:*:*:*:*:*:* | 12.0(5) sr1 | Vulnerable | Cisco |
| cpe:2.3:h:cisco:ip_phone_6871:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:ip_phone_7811_with_multiplatform_firmware:12.0\(5\):sr1:*:*:*:*:*:* | 12.0(5) sr1 | Vulnerable | Cisco |
| cpe:2.3:h:cisco:ip_phone_7811:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:ip_phone_7821_with_multiplatform_firmware:12.0\(5\):sr1:*:*:*:*:*:* | 12.0(5) sr1 | Vulnerable | Cisco |
| cpe:2.3:h:cisco:ip_phone_7821:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:ip_phone_7832_with_multiplatform_firmware:12.0\(5\):sr1:*:*:*:*:*:* | 12.0(5) sr1 | Vulnerable | Cisco |
| cpe:2.3:h:cisco:ip_phone_7832:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:ip_phone_7841_with_multiplatform_firmware:12.0\(5\):sr1:*:*:*:*:*:* | 12.0(5) sr1 | Vulnerable | Cisco |
| cpe:2.3:h:cisco:ip_phone_7841:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:ip_phone_7861_with_multiplatform_firmware:12.0\(5\):sr1:*:*:*:*:*:* | 12.0(5) sr1 | Vulnerable | Cisco |
| cpe:2.3:h:cisco:ip_phone_7861:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:ip_phone_8811_with_multiplatform_firmware:12.0\(5\):sr1:*:*:*:*:*:* | 12.0(5) sr1 | Vulnerable | Cisco |
| cpe:2.3:h:cisco:ip_phone_8811:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:ip_phone_8832_with_multiplatform_firmware:12.0\(5\):sr1:*:*:*:*:*:* | 12.0(5) sr1 | Vulnerable | Cisco |
| cpe:2.3:h:cisco:ip_phone_8832:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:ip_phone_8841_with_multiplatform_firmware:12.0\(5\):sr1:*:*:*:*:*:* | 12.0(5) sr1 | Vulnerable | Cisco |
| cpe:2.3:h:cisco:ip_phone_8841:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:ip_phone_8845_with_multiplatform_firmware:12.0\(5\):sr1:*:*:*:*:*:* | 12.0(5) sr1 | Vulnerable | Cisco |
| cpe:2.3:h:cisco:ip_phone_8845:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:ip_phone_8851_with_multiplatform_firmware:12.0\(5\):sr1:*:*:*:*:*:* | 12.0(5) sr1 | Vulnerable | Cisco |
| cpe:2.3:h:cisco:ip_phone_8851:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:ip_phone_8861_with_multiplatform_firmware:12.0\(5\):sr1:*:*:*:*:*:* | 12.0(5) sr1 | Vulnerable | Cisco |
| cpe:2.3:h:cisco:ip_phone_8861:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:ip_phone_8865_with_multiplatform_firmware:12.0\(5\):sr1:*:*:*:*:*:* | 12.0(5) sr1 | Vulnerable | Cisco |
| cpe:2.3:h:cisco:ip_phone_8865:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:video_phone_8875_with_multiplatform_firmware:*:-:*:*:*:*:*:* | before 2.3\(1\) | Vulnerable | Cisco |
| cpe:2.3:o:cisco:video_phone_8875_with_multiplatform_firmware:2.3\(1\):-:*:*:*:*:*:* | 2.3(1) | Vulnerable | Cisco |
| cpe:2.3:o:cisco:video_phone_8875_with_multiplatform_firmware:2.3\(1\):sr1:*:*:*:*:*:* | 2.3(1) sr1 | Vulnerable | Cisco |
| cpe:2.3:h:cisco:video_phone_8875:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:ip_phone_8831_with_multiplatform_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Cisco |
| cpe:2.3:h:cisco:ip_phone_8831:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
- cpe:2.3:o:cisco:desk_phone_9871_with_multiplatform_firmware:3.1\(1\):sr1:*:*:*:*:*:* Versions 3.1(1) sr1 Vulnerable ·Cisco
- cpe:2.3:h:cisco:desk_phone_9871:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:ip_phone_6821_with_multiplatform_firmware:12.0\(5\):sr1:*:*:*:*:*:* Versions 12.0(5) sr1 Vulnerable ·Cisco
- cpe:2.3:h:cisco:ip_phone_6821:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:ip_phone_6841_with_multiplatform_firmware:12.0\(5\):sr1:*:*:*:*:*:* Versions 12.0(5) sr1 Vulnerable ·Cisco
- cpe:2.3:h:cisco:ip_phone_6841:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:ip_phone_6851_with_multiplatform_firmware:12.0\(5\):sr1:*:*:*:*:*:* Versions 12.0(5) sr1 Vulnerable ·Cisco
- cpe:2.3:h:cisco:ip_phone_6851:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:ip_phone_6861_with_multiplatform_firmware:12.0\(5\):sr1:*:*:*:*:*:* Versions 12.0(5) sr1 Vulnerable ·Cisco
- cpe:2.3:h:cisco:ip_phone_6861:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:ip_phone_6871_with_multiplatform_firmware:12.0\(5\):sr1:*:*:*:*:*:* Versions 12.0(5) sr1 Vulnerable ·Cisco
- cpe:2.3:h:cisco:ip_phone_6871:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:ip_phone_7811_with_multiplatform_firmware:12.0\(5\):sr1:*:*:*:*:*:* Versions 12.0(5) sr1 Vulnerable ·Cisco
- cpe:2.3:h:cisco:ip_phone_7811:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:ip_phone_7821_with_multiplatform_firmware:12.0\(5\):sr1:*:*:*:*:*:* Versions 12.0(5) sr1 Vulnerable ·Cisco
- cpe:2.3:h:cisco:ip_phone_7821:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:ip_phone_7832_with_multiplatform_firmware:12.0\(5\):sr1:*:*:*:*:*:* Versions 12.0(5) sr1 Vulnerable ·Cisco
- cpe:2.3:h:cisco:ip_phone_7832:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:ip_phone_7841_with_multiplatform_firmware:12.0\(5\):sr1:*:*:*:*:*:* Versions 12.0(5) sr1 Vulnerable ·Cisco
- cpe:2.3:h:cisco:ip_phone_7841:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:ip_phone_7861_with_multiplatform_firmware:12.0\(5\):sr1:*:*:*:*:*:* Versions 12.0(5) sr1 Vulnerable ·Cisco
- cpe:2.3:h:cisco:ip_phone_7861:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:ip_phone_8811_with_multiplatform_firmware:12.0\(5\):sr1:*:*:*:*:*:* Versions 12.0(5) sr1 Vulnerable ·Cisco
- cpe:2.3:h:cisco:ip_phone_8811:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:ip_phone_8832_with_multiplatform_firmware:12.0\(5\):sr1:*:*:*:*:*:* Versions 12.0(5) sr1 Vulnerable ·Cisco
- cpe:2.3:h:cisco:ip_phone_8832:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:ip_phone_8841_with_multiplatform_firmware:12.0\(5\):sr1:*:*:*:*:*:* Versions 12.0(5) sr1 Vulnerable ·Cisco
- cpe:2.3:h:cisco:ip_phone_8841:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:ip_phone_8845_with_multiplatform_firmware:12.0\(5\):sr1:*:*:*:*:*:* Versions 12.0(5) sr1 Vulnerable ·Cisco
- cpe:2.3:h:cisco:ip_phone_8845:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:ip_phone_8851_with_multiplatform_firmware:12.0\(5\):sr1:*:*:*:*:*:* Versions 12.0(5) sr1 Vulnerable ·Cisco
- cpe:2.3:h:cisco:ip_phone_8851:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:ip_phone_8861_with_multiplatform_firmware:12.0\(5\):sr1:*:*:*:*:*:* Versions 12.0(5) sr1 Vulnerable ·Cisco
- cpe:2.3:h:cisco:ip_phone_8861:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:ip_phone_8865_with_multiplatform_firmware:12.0\(5\):sr1:*:*:*:*:*:* Versions 12.0(5) sr1 Vulnerable ·Cisco
- cpe:2.3:h:cisco:ip_phone_8865:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:video_phone_8875_with_multiplatform_firmware:*:-:*:*:*:*:*:* Versions before 2.3\(1\) Vulnerable ·Cisco
- cpe:2.3:o:cisco:video_phone_8875_with_multiplatform_firmware:2.3\(1\):-:*:*:*:*:*:* Versions 2.3(1) Vulnerable ·Cisco
- cpe:2.3:o:cisco:video_phone_8875_with_multiplatform_firmware:2.3\(1\):sr1:*:*:*:*:*:* Versions 2.3(1) sr1 Vulnerable ·Cisco
- cpe:2.3:h:cisco:video_phone_8875:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:ip_phone_8831_with_multiplatform_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Cisco
- cpe:2.3:h:cisco:ip_phone_8831:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2024-20534
- 2026-10-03 Alias added: GHSA-47cf-pjqq-7626
References
Advisory 1
More Cisco Desk Phone 9841 With Multiplatform Firmware vulnerabilities
- TI-2024-13457 Cisco IP Phone 6800, 7800, 8800, and 9800 Series with Multiplatform Firmware Stored Cross-Site Scripting Vulnerabilities CVSS 3.1MEDIUM 4.8
Sources
- CVE-2024-20534 · CVE Program
- CVE-2024-20534 · NVD
- FIRST EPSS
- GHSA-47cf-pjqq-7626 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences