CVE-2011-3279

Cisco Security Advisory 20110928-nat

Severity Score

7.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The provider-edge MPLS NAT implementation in Cisco IOS 12.1 through 12.4 and 15.0 through 15.1, and IOS XE 3.1.xSG, allows remote attackers to cause a denial of service (device reload) via a malformed SIP packet to UDP port 5060, aka Bug ID CSCti98219.

La implementación MPLS NAT en Cisco IOS v12.1 hasta v12.4 y v15.0 hasta v15.1, y IOS XE v3.1.xSG, permite a atacantes remotos provocar una denegación de servicio (reinicio del dispositivo) a través de paquetes SIP mal formados en el puesto UDP 5060, también conocido como Bug ID CSCti98219.

The Cisco IOS Software network address translation (NAT) feature contains multiple denial of service (DoS) vulnerabilities in the translation of multiple protocols. Cisco has released free software updates that address these vulnerabilities.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2011-08-29 CVE Reserved
2011-09-28 CVE Published
2024-08-06 CVE Updated
2025-06-03 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CAPEC

References (3)

URL	Tag	Source
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A13781	Signature

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
http://tools.cisco.com/security/center/viewAlert.x?alertId=24121	2022-06-02
http://www.cisco.com/en/US/products/products_security_advisory09186a0080b95d4d.shtml	2022-06-02

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				3.1.0sg Search vendor "Cisco" for product "Ios Xe" and version "3.1.0sg"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				3.1.1sg Search vendor "Cisco" for product "Ios Xe" and version "3.1.1sg"		-		Affected
Cisco Search vendor "Cisco"		Ios Search vendor "Cisco" for product "Ios"				>= 12.1 <= 12.4 Search vendor "Cisco" for product "Ios" and version " >= 12.1 <= 12.4"		-		Affected
Cisco Search vendor "Cisco"		Ios Search vendor "Cisco" for product "Ios"				>= 15.0 <= 15.1 Search vendor "Cisco" for product "Ios" and version " >= 15.0 <= 15.1"		-		Affected