Cisco Unified SIP 3905 phones allow remote attackers to cause a denial of service…
Priority LOW 38CWE-399Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · Complete
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-399 and the CVSS impact.
Summary
Cisco Unified SIP 3905 phones allow remote attackers to cause a denial of service (resource consumption and functionality loss) via a large amount of network traffic, aka Bug ID CSCuh51331.
Why it matters now
EPSS 0.01908 79th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 7
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:cisco:unified_sip_phone_3900_firmware:8.1\(1b\):*:*:*:*:*:*:* | 8.1(1b) | Vulnerable | Cisco |
| cpe:2.3:o:cisco:unified_sip_phone_3900_firmware:8.1\(2\):*:*:*:*:*:*:* | 8.1(2) | Vulnerable | Cisco |
| cpe:2.3:o:cisco:unified_sip_phone_3900_firmware:8.1\(2\)sr1:*:*:*:*:*:*:* | 8.1(2)sr1 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:unified_sip_phone_3900_firmware:8.1\(3\):*:*:*:*:*:*:* | 8.1(3) | Vulnerable | Cisco |
| cpe:2.3:o:cisco:unified_sip_phone_3900_firmware:8.1\(4\):*:*:*:*:*:*:* | 8.1(4) | Vulnerable | Cisco |
| cpe:2.3:o:cisco:unified_sip_phone_3900_firmware:9.2\(1\):*:*:*:*:*:*:* | 9.2(1) | Vulnerable | Cisco |
| cpe:2.3:o:cisco:unified_sip_phone_3900_firmware:9.2\(2\):*:*:*:*:*:*:* | 9.2(2) | Vulnerable | Cisco |
- cpe:2.3:o:cisco:unified_sip_phone_3900_firmware:8.1\(1b\):*:*:*:*:*:*:* Versions 8.1(1b) Vulnerable ·Cisco
- cpe:2.3:o:cisco:unified_sip_phone_3900_firmware:8.1\(2\):*:*:*:*:*:*:* Versions 8.1(2) Vulnerable ·Cisco
- cpe:2.3:o:cisco:unified_sip_phone_3900_firmware:8.1\(2\)sr1:*:*:*:*:*:*:* Versions 8.1(2)sr1 Vulnerable ·Cisco
- cpe:2.3:o:cisco:unified_sip_phone_3900_firmware:8.1\(3\):*:*:*:*:*:*:* Versions 8.1(3) Vulnerable ·Cisco
- cpe:2.3:o:cisco:unified_sip_phone_3900_firmware:8.1\(4\):*:*:*:*:*:*:* Versions 8.1(4) Vulnerable ·Cisco
- cpe:2.3:o:cisco:unified_sip_phone_3900_firmware:9.2\(1\):*:*:*:*:*:*:* Versions 9.2(1) Vulnerable ·Cisco
- cpe:2.3:o:cisco:unified_sip_phone_3900_firmware:9.2\(2\):*:*:*:*:*:*:* Versions 9.2(2) Vulnerable ·Cisco
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2015-6391
- 2026-10-03 Alias added: GHSA-wwmc-wc4p-qv47
References
Sources
- CVE-2015-6391 · CVE Program
- CVE-2015-6391 · NVD
- FIRST EPSS
- GHSA-wwmc-wc4p-qv47 · 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