Stack-based buffer overflow in Cisco Session Initiation Protocol Software
Priority LOW 39CWE-121Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-121 and the CVSS impact.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00478 41st 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
- Yes
- 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 Session Initiation Protocol (SIP) Software | 12.1(1)SR1; 11.5(1); 10.3(2); 10.2(2); 10.3(1); 10.3(1)SR4; 11.0(1); 10.4(1)SR2 3rd Party; 11.7(1); 12.1(1); 11.0(0.7) MPP; 9.3(4) 3rd Party; 12.5(1)SR2; 10.2(1)SR1; 9.3(4)SR3 3rd Party; 10.2(1); 12.5(1); 10.3(1)SR2; 11-0-1MSR1-1; 10.4(1) 3rd Party; 12.5(1)SR1; 11.5(1)SR1; 10.1(1)SR2; 12.0(1)SR2; 12.6(1); 10.3(1.11) 3rd Party; 12.0(1); 12.0(1)SR1; 9.3(3); 12.5(1)SR3; 10.3(1)SR4b; 9.3(4)SR1 3rd Party; 10.3(1)SR5; 10.1(1.9); 10.3(1.9) 3rd Party; 9.3(4)SR2 3rd Party; 10.3(1)SR1; 10.3(1)SR3; 10.1(1)SR1; 12.0(1)SR3; 12.6(1)SR1; 12.7(1); 10.3(1)SR6; 12.8(1); 12.7(1)SR1; 11.0(2)SR1; 11.0(4); 11.0(2); 11.0(4)SR3; 11.0(5); 11.0(3)SR2; 11.0(3)SR4; 11.0(3)SR3; 11.0(2)SR2; 11.0(4)SR1; 11.0(5)SR3; 11.0(3); 11.0(5)SR2; 11.0(3)SR6; 11.0(5)SR1; 11.0(4)SR2; 11.0(3)SR1; 11.0(3)SR5; 11.0(6); 12.8(1)SR1; 12.8(1)SR2; 14.0(1); 14.0(1)SR1; 11.0(6)SR1; 10.3(1)SR7; 14.0(1)SR2; 14.1(1); 14.0(1)SR3; 11.0(6)SR2; 14.1(1)SR1; 14.1(1)SR2; 11.0(6)SR4; 14.2(1); 14.2(1)SR1; 11.0(6)SR5; 14.1(1)SR3; 14.2(1)SR2; 3.1(1); 3.0(1); 2.3(1); 2.3(1)SR1; 2.2(1); 2.1(1); 2.0(1); 14.2(1)SR3; 3.1(1)SR1; 14.3(1); 3.2(1); 14.3(1)SR1; 14.2(1)SR4; 11.0(6)SR6 | — | No fix listed | CNA |
- Cisco Session Initiation Protocol (SIP) Software VendorCisco Affected 12.1(1)SR1; 11.5(1); 10.3(2); 10.2(2); 10.3(1); 10.3(1)SR4; 11.0(1); 10.4(1)SR2 3rd Party; 11.7(1); 12.1(1); 11.0(0.7) MPP; 9.3(4) 3rd Party; 12.5(1)SR2; 10.2(1)SR1; 9.3(4)SR3 3rd Party; 10.2(1); 12.5(1); 10.3(1)SR2; 11-0-1MSR1-1; 10.4(1) 3rd Party; 12.5(1)SR1; 11.5(1)SR1; 10.1(1)SR2; 12.0(1)SR2; 12.6(1); 10.3(1.11) 3rd Party; 12.0(1); 12.0(1)SR1; 9.3(3); 12.5(1)SR3; 10.3(1)SR4b; 9.3(4)SR1 3rd Party; 10.3(1)SR5; 10.1(1.9); 10.3(1.9) 3rd Party; 9.3(4)SR2 3rd Party; 10.3(1)SR1; 10.3(1)SR3; 10.1(1)SR1; 12.0(1)SR3; 12.6(1)SR1; 12.7(1); 10.3(1)SR6; 12.8(1); 12.7(1)SR1; 11.0(2)SR1; 11.0(4); 11.0(2); 11.0(4)SR3; 11.0(5); 11.0(3)SR2; 11.0(3)SR4; 11.0(3)SR3; 11.0(2)SR2; 11.0(4)SR1; 11.0(5)SR3; 11.0(3); 11.0(5)SR2; 11.0(3)SR6; 11.0(5)SR1; 11.0(4)SR2; 11.0(3)SR1; 11.0(3)SR5; 11.0(6); 12.8(1)SR1; 12.8(1)SR2; 14.0(1); 14.0(1)SR1; 11.0(6)SR1; 10.3(1)SR7; 14.0(1)SR2; 14.1(1); 14.0(1)SR3; 11.0(6)SR2; 14.1(1)SR1; 14.1(1)SR2; 11.0(6)SR4; 14.2(1); 14.2(1)SR1; 11.0(6)SR5; 14.1(1)SR3; 14.2(1)SR2; 3.1(1); 3.0(1); 2.3(1); 2.3(1)SR1; 2.2(1); 2.1(1); 2.0(1); 14.2(1)SR3; 3.1(1)SR1; 14.3(1); 3.2(1); 14.3(1)SR1; 14.2(1)SR4; 11.0(6)SR6 Fixed in — No fix listed CNA
CPE configurations NVD · 84
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:cisco:desk_phone_9871_firmware:*:*:*:*:*:*:*:* | 3.0\(1\) – 3.2\(1\) | Vulnerable | Cisco |
| cpe:2.3:h:cisco:desk_phone_9871:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:desk_phone_9841_firmware:*:*:*:*:*:*:*:* | 3.0\(1\) – 3.2\(1\) | 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_firmware:*:*:*:*:*:*:*:* | 3.0\(1\) – 3.2\(1\) | 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_firmware:*:*:*:*:*:*:*:* | 3.0\(1\) – 3.2\(1\) | Vulnerable | Cisco |
| cpe:2.3:h:cisco:desk_phone_9861:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:ip_phone_8865_firmware:*:*:*:*:*:*:*:* | before 14.3\(1\) | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ip_phone_8865_firmware:14.3\(1\):*:*:*:*:*:*:* | 14.3(1) | Vulnerable | Cisco |
- cpe:2.3:o:cisco:desk_phone_9871_firmware:*:*:*:*:*:*:*:* Versions 3.0\(1\) – 3.2\(1\) Vulnerable ·Cisco
- cpe:2.3:h:cisco:desk_phone_9871:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:desk_phone_9841_firmware:*:*:*:*:*:*:*:* Versions 3.0\(1\) – 3.2\(1\) 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_firmware:*:*:*:*:*:*:*:* Versions 3.0\(1\) – 3.2\(1\) 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_firmware:*:*:*:*:*:*:*:* Versions 3.0\(1\) – 3.2\(1\) Vulnerable ·Cisco
- cpe:2.3:h:cisco:desk_phone_9861:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:ip_phone_8865_firmware:*:*:*:*:*:*:*:* Versions before 14.3\(1\) Vulnerable ·Cisco
- cpe:2.3:o:cisco:ip_phone_8865_firmware:14.3\(1\):*:*:*:*:*:*:* Versions 14.3(1) Vulnerable ·Cisco
Show 74 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:cisco:ip_phone_8865_firmware:14.3\(1\):sr1:*:*:*:*:*:* | 14.3(1) sr1 | Vulnerable | Cisco |
| cpe:2.3:h:cisco:ip_phone_8865:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:ip_phone_7811_firmware:*:*:*:*:*:*:*:* | before 14.3\(1\) | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ip_phone_7811_firmware:14.3\(1\):*:*:*:*:*:*:* | 14.3(1) | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ip_phone_7811_firmware:14.3\(1\):sr1:*:*:*:*:*:* | 14.3(1) 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_firmware:*:*:*:*:*:*:*:* | before 14.3\(1\) | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ip_phone_7821_firmware:14.3\(1\):*:*:*:*:*:*:* | 14.3(1) | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ip_phone_7821_firmware:14.3\(1\):sr1:*:*:*:*:*:* | 14.3(1) 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_7841_firmware:*:*:*:*:*:*:*:* | before 14.3\(1\) | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ip_phone_7841_firmware:14.3\(1\):*:*:*:*:*:*:* | 14.3(1) | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ip_phone_7841_firmware:14.3\(1\):sr1:*:*:*:*:*:* | 14.3(1) 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_firmware:*:*:*:*:*:*:*:* | before 14.3\(1\) | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ip_phone_7861_firmware:14.3\(1\):*:*:*:*:*:*:* | 14.3(1) | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ip_phone_7861_firmware:14.3\(1\):sr1:*:*:*:*:*:* | 14.3(1) 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_firmware:*:*:*:*:*:*:*:* | before 14.3\(1\) | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ip_phone_8811_firmware:14.3\(1\):*:*:*:*:*:*:* | 14.3(1) | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ip_phone_8811_firmware:14.3\(1\):sr1:*:*:*:*:*:* | 14.3(1) 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_firmware:*:*:*:*:*:*:*:* | before 14.3\(1\) | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ip_phone_8832_firmware:14.3\(1\):*:*:*:*:*:*:* | 14.3(1) | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ip_phone_8832_firmware:14.3\(1\):sr1:*:*:*:*:*:* | 14.3(1) 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_firmware:*:*:*:*:*:*:*:* | before 14.3\(1\) | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ip_phone_8841_firmware:14.3\(1\):*:*:*:*:*:*:* | 14.3(1) | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ip_phone_8841_firmware:14.3\(1\):sr1:*:*:*:*:*:* | 14.3(1) 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_firmware:*:*:*:*:*:*:*:* | before 14.3\(1\) | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ip_phone_8845_firmware:14.3\(1\):*:*:*:*:*:*:* | 14.3(1) | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ip_phone_8845_firmware:14.3\(1\):sr1:*:*:*:*:*:* | 14.3(1) 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_firmware:*:*:*:*:*:*:*:* | before 14.3\(1\) | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ip_phone_8851_firmware:14.3\(1\):*:*:*:*:*:*:* | 14.3(1) | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ip_phone_8851_firmware:14.3\(1\):sr1:*:*:*:*:*:* | 14.3(1) 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_firmware:*:*:*:*:*:*:*:* | before 14.3\(1\) | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ip_phone_8861_firmware:14.3\(1\):*:*:*:*:*:*:* | 14.3(1) | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ip_phone_8861_firmware:14.3\(1\):sr1:*:*:*:*:*:* | 14.3(1) sr1 | Vulnerable | Cisco |
| cpe:2.3:h:cisco:ip_phone_8861:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:video_phone_8875_firmware:*:*:*:*:*:*:*:* | before 2.3\(1\); 3.0\(1\) – 3.2\(1\) | Vulnerable | Cisco |
| cpe:2.3:o:cisco:video_phone_8875_firmware:2.3\(1\):*:*:*:*:*:*:* | 2.3(1) | Vulnerable | Cisco |
| cpe:2.3:o:cisco:video_phone_8875_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_8821_firmware:*:*:*:*:*:*:*:* | before 11.0\(1\) | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ip_phone_8821_firmware:11.0\(0.7\):mpp:*:*:*:*:*:* | 11.0(0.7) mpp | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ip_phone_8821_firmware:11.0\(1\):*:*:*:*:*:*:* | 11.0(1) | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ip_phone_8821_firmware:11.0\(2\):*:*:*:*:*:*:* | 11.0(2) | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ip_phone_8821_firmware:11.0\(2\):sr1:*:*:*:*:*:* | 11.0(2) sr1 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ip_phone_8821_firmware:11.0\(2\):sr2:*:*:*:*:*:* | 11.0(2) sr2 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ip_phone_8821_firmware:11.0\(3\):*:*:*:*:*:*:* | 11.0(3) | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ip_phone_8821_firmware:11.0\(3\):sr1:*:*:*:*:*:* | 11.0(3) sr1 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ip_phone_8821_firmware:11.0\(3\):sr2:*:*:*:*:*:* | 11.0(3) sr2 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ip_phone_8821_firmware:11.0\(3\):sr3:*:*:*:*:*:* | 11.0(3) sr3 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ip_phone_8821_firmware:11.0\(3\):sr4:*:*:*:*:*:* | 11.0(3) sr4 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ip_phone_8821_firmware:11.0\(3\):sr5:*:*:*:*:*:* | 11.0(3) sr5 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ip_phone_8821_firmware:11.0\(3\):sr6:*:*:*:*:*:* | 11.0(3) sr6 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ip_phone_8821_firmware:11.0\(4\):*:*:*:*:*:*:* | 11.0(4) | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ip_phone_8821_firmware:11.0\(4\):sr1:*:*:*:*:*:* | 11.0(4) sr1 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ip_phone_8821_firmware:11.0\(4\):sr2:*:*:*:*:*:* | 11.0(4) sr2 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ip_phone_8821_firmware:11.0\(4\):sr3:*:*:*:*:*:* | 11.0(4) sr3 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ip_phone_8821_firmware:11.0\(5\):*:*:*:*:*:*:* | 11.0(5) | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ip_phone_8821_firmware:11.0\(5\):sr1:*:*:*:*:*:* | 11.0(5) sr1 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ip_phone_8821_firmware:11.0\(5\):sr2:*:*:*:*:*:* | 11.0(5) sr2 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ip_phone_8821_firmware:11.0\(5\):sr3:*:*:*:*:*:* | 11.0(5) sr3 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ip_phone_8821_firmware:11.0\(6\):*:*:*:*:*:*:* | 11.0(6) | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ip_phone_8821_firmware:11.0\(6\):sr1:*:*:*:*:*:* | 11.0(6) sr1 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ip_phone_8821_firmware:11.0\(6\):sr2:*:*:*:*:*:* | 11.0(6) sr2 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ip_phone_8821_firmware:11.0\(6\):sr4:*:*:*:*:*:* | 11.0(6) sr4 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ip_phone_8821_firmware:11.0\(6\):sr5:*:*:*:*:*:* | 11.0(6) sr5 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ip_phone_8821_firmware:11.0\(6\):sr6:*:*:*:*:*:* | 11.0(6) sr6 | Vulnerable | Cisco |
| cpe:2.3:h:cisco:ip_phone_8821:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
- cpe:2.3:o:cisco:ip_phone_8865_firmware:14.3\(1\):sr1:*:*:*:*:*:* Versions 14.3(1) sr1 Vulnerable ·Cisco
- cpe:2.3:h:cisco:ip_phone_8865:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:ip_phone_7811_firmware:*:*:*:*:*:*:*:* Versions before 14.3\(1\) Vulnerable ·Cisco
- cpe:2.3:o:cisco:ip_phone_7811_firmware:14.3\(1\):*:*:*:*:*:*:* Versions 14.3(1) Vulnerable ·Cisco
- cpe:2.3:o:cisco:ip_phone_7811_firmware:14.3\(1\):sr1:*:*:*:*:*:* Versions 14.3(1) 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_firmware:*:*:*:*:*:*:*:* Versions before 14.3\(1\) Vulnerable ·Cisco
- cpe:2.3:o:cisco:ip_phone_7821_firmware:14.3\(1\):*:*:*:*:*:*:* Versions 14.3(1) Vulnerable ·Cisco
- cpe:2.3:o:cisco:ip_phone_7821_firmware:14.3\(1\):sr1:*:*:*:*:*:* Versions 14.3(1) 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_7841_firmware:*:*:*:*:*:*:*:* Versions before 14.3\(1\) Vulnerable ·Cisco
- cpe:2.3:o:cisco:ip_phone_7841_firmware:14.3\(1\):*:*:*:*:*:*:* Versions 14.3(1) Vulnerable ·Cisco
- cpe:2.3:o:cisco:ip_phone_7841_firmware:14.3\(1\):sr1:*:*:*:*:*:* Versions 14.3(1) 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_firmware:*:*:*:*:*:*:*:* Versions before 14.3\(1\) Vulnerable ·Cisco
- cpe:2.3:o:cisco:ip_phone_7861_firmware:14.3\(1\):*:*:*:*:*:*:* Versions 14.3(1) Vulnerable ·Cisco
- cpe:2.3:o:cisco:ip_phone_7861_firmware:14.3\(1\):sr1:*:*:*:*:*:* Versions 14.3(1) 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_firmware:*:*:*:*:*:*:*:* Versions before 14.3\(1\) Vulnerable ·Cisco
- cpe:2.3:o:cisco:ip_phone_8811_firmware:14.3\(1\):*:*:*:*:*:*:* Versions 14.3(1) Vulnerable ·Cisco
- cpe:2.3:o:cisco:ip_phone_8811_firmware:14.3\(1\):sr1:*:*:*:*:*:* Versions 14.3(1) 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_firmware:*:*:*:*:*:*:*:* Versions before 14.3\(1\) Vulnerable ·Cisco
- cpe:2.3:o:cisco:ip_phone_8832_firmware:14.3\(1\):*:*:*:*:*:*:* Versions 14.3(1) Vulnerable ·Cisco
- cpe:2.3:o:cisco:ip_phone_8832_firmware:14.3\(1\):sr1:*:*:*:*:*:* Versions 14.3(1) 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_firmware:*:*:*:*:*:*:*:* Versions before 14.3\(1\) Vulnerable ·Cisco
- cpe:2.3:o:cisco:ip_phone_8841_firmware:14.3\(1\):*:*:*:*:*:*:* Versions 14.3(1) Vulnerable ·Cisco
- cpe:2.3:o:cisco:ip_phone_8841_firmware:14.3\(1\):sr1:*:*:*:*:*:* Versions 14.3(1) 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_firmware:*:*:*:*:*:*:*:* Versions before 14.3\(1\) Vulnerable ·Cisco
- cpe:2.3:o:cisco:ip_phone_8845_firmware:14.3\(1\):*:*:*:*:*:*:* Versions 14.3(1) Vulnerable ·Cisco
- cpe:2.3:o:cisco:ip_phone_8845_firmware:14.3\(1\):sr1:*:*:*:*:*:* Versions 14.3(1) 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_firmware:*:*:*:*:*:*:*:* Versions before 14.3\(1\) Vulnerable ·Cisco
- cpe:2.3:o:cisco:ip_phone_8851_firmware:14.3\(1\):*:*:*:*:*:*:* Versions 14.3(1) Vulnerable ·Cisco
- cpe:2.3:o:cisco:ip_phone_8851_firmware:14.3\(1\):sr1:*:*:*:*:*:* Versions 14.3(1) 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_firmware:*:*:*:*:*:*:*:* Versions before 14.3\(1\) Vulnerable ·Cisco
- cpe:2.3:o:cisco:ip_phone_8861_firmware:14.3\(1\):*:*:*:*:*:*:* Versions 14.3(1) Vulnerable ·Cisco
- cpe:2.3:o:cisco:ip_phone_8861_firmware:14.3\(1\):sr1:*:*:*:*:*:* Versions 14.3(1) sr1 Vulnerable ·Cisco
- cpe:2.3:h:cisco:ip_phone_8861:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:video_phone_8875_firmware:*:*:*:*:*:*:*:* Versions before 2.3\(1\); 3.0\(1\) – 3.2\(1\) Vulnerable ·Cisco
- cpe:2.3:o:cisco:video_phone_8875_firmware:2.3\(1\):*:*:*:*:*:*:* Versions 2.3(1) Vulnerable ·Cisco
- cpe:2.3:o:cisco:video_phone_8875_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_8821_firmware:*:*:*:*:*:*:*:* Versions before 11.0\(1\) Vulnerable ·Cisco
- cpe:2.3:o:cisco:ip_phone_8821_firmware:11.0\(0.7\):mpp:*:*:*:*:*:* Versions 11.0(0.7) mpp Vulnerable ·Cisco
- cpe:2.3:o:cisco:ip_phone_8821_firmware:11.0\(1\):*:*:*:*:*:*:* Versions 11.0(1) Vulnerable ·Cisco
- cpe:2.3:o:cisco:ip_phone_8821_firmware:11.0\(2\):*:*:*:*:*:*:* Versions 11.0(2) Vulnerable ·Cisco
- cpe:2.3:o:cisco:ip_phone_8821_firmware:11.0\(2\):sr1:*:*:*:*:*:* Versions 11.0(2) sr1 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ip_phone_8821_firmware:11.0\(2\):sr2:*:*:*:*:*:* Versions 11.0(2) sr2 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ip_phone_8821_firmware:11.0\(3\):*:*:*:*:*:*:* Versions 11.0(3) Vulnerable ·Cisco
- cpe:2.3:o:cisco:ip_phone_8821_firmware:11.0\(3\):sr1:*:*:*:*:*:* Versions 11.0(3) sr1 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ip_phone_8821_firmware:11.0\(3\):sr2:*:*:*:*:*:* Versions 11.0(3) sr2 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ip_phone_8821_firmware:11.0\(3\):sr3:*:*:*:*:*:* Versions 11.0(3) sr3 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ip_phone_8821_firmware:11.0\(3\):sr4:*:*:*:*:*:* Versions 11.0(3) sr4 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ip_phone_8821_firmware:11.0\(3\):sr5:*:*:*:*:*:* Versions 11.0(3) sr5 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ip_phone_8821_firmware:11.0\(3\):sr6:*:*:*:*:*:* Versions 11.0(3) sr6 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ip_phone_8821_firmware:11.0\(4\):*:*:*:*:*:*:* Versions 11.0(4) Vulnerable ·Cisco
- cpe:2.3:o:cisco:ip_phone_8821_firmware:11.0\(4\):sr1:*:*:*:*:*:* Versions 11.0(4) sr1 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ip_phone_8821_firmware:11.0\(4\):sr2:*:*:*:*:*:* Versions 11.0(4) sr2 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ip_phone_8821_firmware:11.0\(4\):sr3:*:*:*:*:*:* Versions 11.0(4) sr3 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ip_phone_8821_firmware:11.0\(5\):*:*:*:*:*:*:* Versions 11.0(5) Vulnerable ·Cisco
- cpe:2.3:o:cisco:ip_phone_8821_firmware:11.0\(5\):sr1:*:*:*:*:*:* Versions 11.0(5) sr1 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ip_phone_8821_firmware:11.0\(5\):sr2:*:*:*:*:*:* Versions 11.0(5) sr2 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ip_phone_8821_firmware:11.0\(5\):sr3:*:*:*:*:*:* Versions 11.0(5) sr3 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ip_phone_8821_firmware:11.0\(6\):*:*:*:*:*:*:* Versions 11.0(6) Vulnerable ·Cisco
- cpe:2.3:o:cisco:ip_phone_8821_firmware:11.0\(6\):sr1:*:*:*:*:*:* Versions 11.0(6) sr1 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ip_phone_8821_firmware:11.0\(6\):sr2:*:*:*:*:*:* Versions 11.0(6) sr2 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ip_phone_8821_firmware:11.0\(6\):sr4:*:*:*:*:*:* Versions 11.0(6) sr4 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ip_phone_8821_firmware:11.0\(6\):sr5:*:*:*:*:*:* Versions 11.0(6) sr5 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ip_phone_8821_firmware:11.0\(6\):sr6:*:*:*:*:*:* Versions 11.0(6) sr6 Vulnerable ·Cisco
- cpe:2.3:h:cisco:ip_phone_8821:-:*:*:*:*:*:*:* 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-2025-20350
- 2026-10-03 Alias added: GHSA-c6wg-233f-cjj6
References
Advisory 1
More Cisco Desk Phone 9841 Firmware vulnerabilities
- TI-2025-14631 Information disclosure in Cisco Session Initiation Protocol Software CVSS 3.1HIGH 7.5
- TI-2025-14646 Cross-site scripting in Cisco Session Initiation Protocol Software CVSS 3.1MEDIUM 6.1
- TI-2025-14630 Improper access control in Cisco Session Initiation Protocol Software CVSS 3.1MEDIUM 5.3
- TI-2024-13373 Cisco IP Phone 7800, 8800, and 9800 Series Information Disclosure Vulnerability CVSS 3.1MEDIUM 5.3
- TI-2025-14458 Cisco Video Phone 8875 and Desk Phone 9800 Series Information Disclosure Vulnerability CVSS 3.1MEDIUM 4.4
Sources
- CVE-2025-20350 · CVE Program
- CVE-2025-20350 · NVD
- FIRST EPSS
- GHSA-c6wg-233f-cjj6 · 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