CVE-2015-4226

no score yetEPSS 2.8%

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.

EPSS: 2.8% chance of exploitation in the next 30 days; higher than 86% of CVEs (scores of 2026-10-31)
CWE: CWE-399
Published: 2015-06-30
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

cisco:unified_ip_phones_9900_series_firmware

References

http://tools.cisco.com/security/center/viewAlert.x?alertId=39554
http://www.securityfocus.com/bid/75471
http://www.securitytracker.com/id/1032748
http://tools.cisco.com/security/center/viewAlert.x?alertId=39554
http://www.securityfocus.com/bid/75471

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