CVE-2013-3461

Name: CVE-2013-3461
Creator: NVD / NIST
Published: 2013-08-25T03:27:32.673+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.35%

Last modified Jun 16, 2026

CVE-2013-3461 is a vulnerability of currently unknown severity. Cisco Unified Communications Manager (Unified CM) 8.5(x) and 8.6(x) before 8.6(2a)su3 and 9.x before 9.1(1) does not properly restrict the rate of SIP packets, which allows remote attackers to cause a denial of service (memory and CPU consumption, and service disruption) via a flood of UDP packets to port 5060, aka Bug ID CSCub35869.. EPSS estimates a 1.35% chance of exploitation in the next 30 days.

Description

Cisco Unified Communications Manager (Unified CM) 8.5(x) and 8.6(x) before 8.6(2a)su3 and 9.x before 9.1(1) does not properly restrict the rate of SIP packets, which allows remote attackers to cause a denial of service (memory and CPU consumption, and service disruption) via a flood of UDP packets to port 5060, aka Bug ID CSCub35869.

Metrics

EPSS Probability

1.35%

67.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-399

Affected Software

Vendor	Product	Versions
Cisco	Unified Communications Manager	9.0\(1\)
Cisco	Unified Communications Manager	8.5
Cisco	Unified Communications Manager	8.5\(1\)
Cisco	Unified Communications Manager	8.5\(1\)su1
Cisco	Unified Communications Manager	8.5\(1\)su2
Cisco	Unified Communications Manager	8.5\(1\)su3
Cisco	Unified Communications Manager	8.5\(1\)su4
Cisco	Unified Communications Manager	8.5\(1\)su5
Cisco	Unified Communications Manager	8.6
Cisco	Unified Communications Manager	8.6\(1\)
Cisco	Unified Communications Manager	8.6\(1a\)
Cisco	Unified Communications Manager	8.6\(2\)
Cisco	Unified Communications Manager	8.6\(2a\)
Cisco	Unified Communications Manager	8.6\(2a\)su1
Cisco	Unified Communications Manager	8.6\(2a\)su2

References

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20130821-cucmVendor Advisory
http://www.securitytracker.com/id/1028938Third Party Advisory, VDB Entry
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20130821-cucmVendor Advisory
http://www.securitytracker.com/id/1028938Third Party Advisory, VDB Entry

Timeline

Published: Aug 25, 2013
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2013-3461?

How severe is CVE-2013-3461?

Severity scoring for CVE-2013-3461 is pending analysis. The EPSS model estimates a 1.35% probability of exploitation in the next 30 days.

How do I fix CVE-2013-3461?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2013-3461?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST