CVE-2015-6391
Cisco Unified SIP 3905 phones allow remote attackers to cause a denial of service (resource...
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.
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2015-6391- CVSS 2.0
- 7.8 High
AV:N/AC:L/Au:N/C:N/I:N/A:C - Weakness
- CWE-399
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2015-6391- Updated
- 2026-11-02
EUVDEUVD-2015-6333 No score
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.
- Record
EUVD-2015-6333- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-wwmc-wc4p-qv47 No score
Cisco Unified SIP 3905 phones allow remote attackers to cause a denial of service (resource...
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.
- Record
GHSA-wwmc-wc4p-qv47- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2015-6391 is a high vulnerability (CVSS 7.8) in Cisco Unified Sip Phone 3900 Firmware, published December 5, 2015. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.91%, the 79th percentile. No source names a fixed version.