CVE-2015-4226
The packet-storing feature on Cisco 9900 phones with firmware 9.3(2) does not properly support the RTP protocol, which allows remote attackers to cause a denial of service (device hang) by sending malformed RTP packets after a call is answered, aka Bug…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.77%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
The packet-storing feature on Cisco 9900 phones with firmware 9.3(2) does not properly support the RTP protocol, which allows remote attackers to cause a denial of service (device hang) by sending malformed RTP packets after a call is answered, aka Bug ID CSCur39976.
- CVSS 2.0
- 7.1 HIGHAV:N/AC:M/Au:N/C:N/I:N/A:C
- EPSS
- 2.77% probability · 86th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-399
- Affected
- cisco/unified ip phones 9900 series firmware
- Source
- psirt@cisco.com
References
- http://tools.cisco.com/security/center/viewAlert.x?alertId=39554Vendor Advisory
- http://www.securityfocus.com/bid/75471Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1032748Third Party Advisory, VDB Entry
- http://tools.cisco.com/security/center/viewAlert.x?alertId=39554Vendor Advisory
- http://www.securityfocus.com/bid/75471Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1032748Third Party Advisory, VDB Entry
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.