CVE Tools
Sign in

CVE-2015-4226

Published: Jun 30, 2015Updated: May 6, 2026 Sources: CVE List NVDCWE-399
7.1HIGH
NVD MITRE
EPSS Score
2.8%
Top 15.5%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
Not available

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:MAu:NC:NI:NA:C
Exploitability
AV:NAccess Vector
Network
AC:MAccess Complexity
Medium
Au:NAuthentication
None
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:CAvailability
Complete
Open in CVSS calculator →

Weaknesses

CWE-399

Affected Products

cisco
commercial·USaka cisco systems, cisco systems inc.
unified ip phones 9900 series firmware
Networking Infrastructure
and 1 more affected products View all →

Exploitability

Official Patch Available
Is your org exposed to CVE-2015-4226?We can run the check for you — a free external exposure review, no install. Check my exposure

References

http://tools.cisco.com/security/center/viewAlert.x?alertId=39554
tools.cisco.com
http://www.securitytracker.com/id/1032748
securitytracker.com
http://www.securityfocus.com/bid/75471
securityfocus.com
News mentions
Could not load news mentions.

Unlock Complete Vulnerability Intelligence

Get the full picture for CVE-2015-4226 and every CVE in our database. Create a free account — no credit card required.

Create Free Account
Plain-language analysis
Impact assessment and exploitation scenario in plain English
Attack graph visualization
Interactive attack path and kill chain mapping
Exploit details & PoC links
ExploitDB, Metasploit, GitHub PoCs with direct links
Nuclei scanner templates
Ready-to-use vulnerability scanner templates
Full remediation guide
Patch instructions, workarounds, and compliance impact
Interactive AI chat
Ask questions about this vulnerability in natural language
Related vulnerabilities
Semantically similar CVEs and attack patterns
REST API & MCP access
Integrate vulnerability data into your workflows