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Cisco Security

Cisco Security Advisories, Responses, and Notices

Addressing security issues in Cisco products is the responsibility of the Cisco Product Security Incident Response Team (PSIRT). The Cisco PSIRT is a dedicated, global team that manages the receipt, investigation, and public reporting of security vulnerability information that is related to Cisco products and networks.


Please make a note of the Security Vulnerability Policy. This document also contains instructions for Receiving Security Vulnerability Information from Cisco.

Cisco Security Advisories

Cisco Security Advisories are published for significant security issues that directly involve Cisco products and require an upgrade, fix, or other customer action. In all security publications, Cisco discloses the minimum amount of information required for an end-user to assess the impact of a vulnerability and any potential steps needed to protect their environment. Cisco does not provide vulnerability details that could enable someone to craft an exploit. All security advisories on Cisco.com are displayed in chronological order, with the most recently updated advisory appearing at the top of the page.

Cisco Security Advisories are also available in CVRF format in the CVRF repository.

Cisco Security Advisories pertaining to Cisco IOS Software are also available in OVAL Definition schema in the OVAL repository.


Keyword: Enter keyword(s) on which to search.
Date Range: Select a date range to restrict search to a specific time period.

Title Version First Published  Last Updated Sorted Descending
Related Resources
GNU Bash Environment Variable Command Injection Vulnerability  Updated 1.23 2014 September 26
01:00 GMT
2014 November 20
22:32 GMT
    View related Applied Mitigation Bulletin View related Blog View related Event Response 6 Alerts
        View 4 related Snort rules 
Apache HTTPd Range Header Denial of Service Vulnerability  Updated 1.9 2011 August 30
16:00 GMT
2014 November 20
16:35 GMT
           
         
Multiple Vulnerabilities in Cisco Small Business RV Series Routers  Updated 1.1 2014 November 05
16:00 GMT
2014 November 20
14:41 GMT
  View 2 related IPS Signatures        3 Alerts
         
SSL Padding Oracle On Downgraded Legacy Encryption (POODLE) Vulnerability  Updated 1.10 2014 October 15
18:30 GMT
2014 November 13
17:10 GMT
           
         
Multiple Vulnerabilities in OpenSSL Affecting Cisco Products  Updated 1.23 2014 June 05
22:40 GMT
2014 November 12
22:11 GMT
           
         
Cisco IronPort Appliances Telnet Remote Code Execution Vulnerability  Updated 2.0 2012 January 26
17:00 GMT
2014 November 12
16:06 GMT
  View related IPS Signature View related Applied Mitigation Bulletin      
         
Cisco Unified IP Phone Local Kernel System Call Input Validation Vulnerability   1.4 2013 January 09
16:00 GMT
2014 November 03
21:48 GMT
    View related Applied Mitigation Bulletin     View related Alert 
View related Security Notice        
OpenSSL Heartbeat Extension Vulnerability in Multiple Cisco Products   1.26 2014 April 09
03:00 GMT
2014 October 29
16:11 GMT
  View 5 related IPS Signatures    View 3 related Blogs View related Event Response View related Alert 
         
Multiple Vulnerabilities in Cisco ASA Software   1.1 2014 October 08
16:00 GMT
2014 October 24
15:44 GMT
  View 3 related IPS Signatures        10 Alerts
        View 10 related Snort rules 
TCP Vulnerabilities in Multiple Non-IOS Cisco Products   2.10 2004 April 20
21:00 GMT
2014 October 23
12:53 GMT
  View 10 related IPS Signatures         
         
Cisco TelePresence MCU Software Memory Exhaustion Vulnerability   1.0 2014 October 15
16:00 GMT
2014 October 15
16:00 GMT
          View related Alert 
         
Multiple Vulnerabilities in Cisco TelePresence Video Communication Server and Cisco Expressway Software   1.0 2014 October 15
16:00 GMT
2014 October 15
16:00 GMT
  View related IPS Signature       3 Alerts
         
Multiple Vulnerabilities in Cisco Unified Communications Domain Manager   3.0 2014 July 02
16:00 GMT
2014 October 13
15:55 GMT
  View related IPS Signature View related Applied Mitigation Bulletin     3 Alerts
         
Cisco IOS Software RSVP Vulnerability   1.1 2014 September 24
16:00 GMT
2014 September 26
19:15 GMT
      View related Blog View related Event Response View related Alert 
         
Cisco IOS Software DHCP Version 6 Denial of Service Vulnerability   1.0 2014 September 24
16:00 GMT
2014 September 24
16:00 GMT
  View related IPS Signature   View related Blog View related Event Response View related Alert 
         
Multiple Vulnerabilities in Cisco IOS Software Multicast Domain Name System   1.0 2014 September 24
16:00 GMT
2014 September 24
16:00 GMT
  View 2 related IPS Signatures  View related Applied Mitigation Bulletin View related Blog View related Event Response 2 Alerts
         
Cisco IOS Software Metadata Vulnerabilities   1.0 2014 September 24
16:00 GMT
2014 September 24
16:00 GMT
  View related IPS Signature   View related Blog View related Event Response 2 Alerts
         
Cisco IOS Software Network Address Translation Denial of Service Vulnerability   1.0 2014 September 24
16:00 GMT
2014 September 24
16:00 GMT
  View 3 related IPS Signatures    View related Blog View related Event Response View related Alert 
         
Cisco IOS Software Session Initiation Protocol Denial of Service Vulnerability   1.0 2014 September 24
16:00 GMT
2014 September 24
16:00 GMT
  View related IPS Signature View related Applied Mitigation Bulletin View related Blog View related Event Response View related Alert 
         
Cisco Unified Computing System E-Series Blade Servers Cisco Integrated Management Controller SSH Denial of Service Vulnerability   1.0 2014 September 08
16:00 GMT
2014 September 08
16:00 GMT
    View related Applied Mitigation Bulletin     View related Alert 
View related Security Notice        
Items Per Page:
Showing 1-20 of 600 | < Previous Next >
These advisories are provided on an "as is" basis and do not imply any kind of guarantee or warranty. Your use of the information in the advisories or material linked from the advisories is at your own risk. Cisco reserves the right to change or update the advisories without notice at any time.

Cisco Security Responses

Cisco Security Responses are published to address less severe problems that affect network security or issues that require a response to information posted to a public discussion forum. They are normally published if a third party makes a public statement about a Cisco product vulnerability that Cisco has previously addressed through our standard disclosure process or when the nature of the issue does not warrant the visibility of a Cisco Security Advisory.


Keyword: Enter keyword(s) on which to search.
Date Range: Select a date range to restrict search to a specific time period.

Title Version First Published  Last Updated Sorted Descending
Related Resources
Distance Vector Multicast Routing Protocol Misuse   1.0 2014 October 06
22:00 GMT
2014 October 06
22:00 GMT
           
         
Rootkits on Cisco IOS Devices   3.4 2008 May 16
16:00 GMT
2014 April 09
12:43 GMT
           
         
Der Spiegel Article on Networking Equipment Infiltration   2.0 2013 December 29
19:17 GMT
2014 March 13
18:56 GMT
           
         
Use of Dual_EC_DRBG in Cisco Products   1.0 2013 October 16
16:00 GMT
2013 October 16
16:37 GMT
           
         
Cisco IOS and Cisco IOS XE Type 4 Passwords Issue   1.1 2013 March 18
16:00 GMT
2013 March 22
18:47 GMT
          View related Alert 
         
Cisco Nexus 1000V Series Switch Software Release 4.2(1)SV1(5.2) Virtual Security Gateway Bypass Issue   1.0 2012 November 07
16:00 GMT
2012 November 07
16:00 GMT
          View related Alert 
         
Multiple Vulnerabilities in OpenSSL Library   1.9 2006 November 08
16:00 GMT
2012 October 15
13:20 GMT
           
         
NACATTACK Presentation   2.0 2007 March 30
16:45 GMT
2012 May 09
17:33 GMT
           
         
Wi-Fi Protected Setup PIN Brute Force Vulnerability   4.0 2012 January 11
16:00 GMT
2012 February 29
20:15 GMT
           
         
Internet Key Exchange Resource Exhaustion Attack   2.4 2006 July 26
16:00 GMT
2011 October 18
14:39 GMT
           
         
Infected Cisco Information Packet and Warranty CDs   1.1 2011 August 03
16:00 GMT
2011 August 03
16:00 GMT
           
         
Cisco IOS Software Denial of Service Vulnerabilities   1.1 2011 April 05
16:00 GMT
2011 April 05
16:00 GMT
           
         
Cisco IPSec VPN Implementation Group Name Enumeration Vulnerability   1.1 2010 November 24
17:00 GMT
2010 November 24
17:00 GMT
           
         
Cisco IronPort Desktop Flag Plug-in for Outlook Information Disclosure   1.1 2010 May 11
16:00 GMT
2010 May 11
16:00 GMT
           
         
Unmatched Request Discloses Client Internal IP Address   1.0 2009 September 25
16:00 GMT
2009 September 25
16:00 GMT
           
         
Cisco IOS Cross-Site Scripting Vulnerabilities   3.1 2009 June 19
16:00 GMT
2009 June 19
16:00 GMT
           
         
Cisco Unified MeetingPlace Stored Cross-Site Scripting Vulnerability   1.0 2009 February 26
12:00 GMT
2009 February 26
12:00 GMT
           
         
MD5 Hashes May Allow for Certificate Spoofing   1.0 2009 January 15
16:00 GMT
2009 January 15
16:00 GMT
           
         
Cisco Response to TKIP Encryption Weakness   1.0 2008 November 21
16:00 GMT
2008 November 21
16:00 GMT
           
         
Cisco VLAN Trunking Protocol Vulnerability   1.3 2008 November 05
16:00 GMT
2008 November 05
16:00 GMT
           
         
Items Per Page:
Showing 1-20 of 67 | < Previous Next >
These advisories are provided on an "as is" basis and do not imply any kind of guarantee or warranty. Your use of the information in the advisories or material linked from the advisories is at your own risk. Cisco reserves the right to change or update the advisories without notice at any time.

Cisco Security Notices

Cisco Security Notices document low- and medium-severity security issues that directly involve Cisco products but do not warrant the visibility of a Cisco Security Advisory. Cisco Security Notices are organized by Common Vulnerabilities and Exposures (CVE) Identifier to facilitate correlation of security issues across Cisco products. All Security Notices on Cisco.com are displayed in chronological order, with the most recently updated Security Notice appearing at the top of the page.


Keyword: Enter keyword(s) on which to search.
Date Range: Select a date range to restrict search to a specific time period.

Title First Published  Last Updated Sorted Descending
Related Resources
Cisco Unified Communications Manager IM and Presence Service Enumeration Vulnerability  Updated 2014 November 19
00:27 GMT
2014 November 19
17:06 GMT
          View related Alert 
         
Cisco IOS DLSw Information Disclosure Vulnerability  Updated 2014 November 17
17:58 GMT
2014 November 18
19:13 GMT
          View related Alert 
         
Cisco Integrated Management Controller Cross-Site Request Forgery Vulnerability  New 2014 November 18
16:32 GMT
2014 November 18
16:32 GMT
          View related Alert 
         
Cisco Aironet DHCP Denial of Service Vulnerability  Updated 2014 November 14
20:22 GMT
2014 November 17
19:22 GMT
          View related Alert 
         
Cisco Aironet EAP Debugging Denial of Service Vulnerability  Updated 2014 November 14
21:21 GMT
2014 November 17
18:47 GMT
          View related Alert 
         
Cisco IOS and IOS XE Software Ethernet Connectivity Fault Management Vulnerability  Updated 2014 October 24
12:06 GMT
2014 November 17
17:24 GMT
           
         
Cisco IOS XE Challenge/Response Bypass Vulnerability  Updated 2014 November 06
16:29 GMT
2014 November 13
15:53 GMT
          View related Alert 
         
Cisco Unified Communications Manager Remote Mobile Access Subsystem Vulnerability  Updated 2014 November 10
21:24 GMT
2014 November 11
15:49 GMT
          View related Alert 
         
Cisco Unified Computing System B-Series Servers Privilege Escalation Vulnerability  New 2014 November 06
16:21 GMT
2014 November 06
16:21 GMT
          View related Alert 
         
Cisco Unity Connection Information Disclosure Vulnerability   2014 November 05
17:16 GMT
2014 November 05
20:22 GMT
          View related Alert 
         
Cisco Unified IP Phones Local Kernel System Call Input Validation Vulnerability   2013 January 09
16:00 GMT
2014 November 04
15:35 GMT
          View related Alert 
         
Cisco Unified Communications Manager Service Interface Reflected Cross-Site Scripting Vulnerability   2014 October 30
21:12 GMT
2014 November 03
20:21 GMT
          View related Alert 
         
Cisco Unified Communications Manager Admin Interface Reflected Cross-Site Scripting Vulnerability   2014 October 30
21:09 GMT
2014 November 03
18:30 GMT
          View related Alert 
         
Cisco Unified Communications Manager DNA Interface Reflected Cross-Site Scripting Vulnerability   2014 October 30
21:07 GMT
2014 November 03
18:17 GMT
          View related Alert 
         
Cisco Unified Communications Manager SQL Injection Vulnerability   2014 October 30
21:03 GMT
2014 November 03
18:13 GMT
          View related Alert 
         
Cisco Unified Communications Manager Reports Interface Reflected Cross-Site Scripting Vulnerability   2014 October 30
20:57 GMT
2014 November 03
18:01 GMT
          View related Alert 
         
Cisco IOS Software Sup2T Denial of Service Vulnerability   2014 March 19
12:54 GMT
2014 November 03
14:03 GMT
          View related Alert 
         
Cisco Unity Connection Reflected Cross-Site Scripting Vulnerability  New 2014 October 30
20:42 GMT
2014 October 30
20:42 GMT
           
         
Cisco ASR901 Crafted IPv4 Packet Denial of Service Vulnerability  New 2014 October 27
10:43 GMT
2014 October 27
10:43 GMT
          View related Alert 
         
Cisco Prime Optical Cross-Site Scripting Vulnerability   2014 October 15
15:28 GMT
2014 October 15
21:18 GMT
          View related Alert 
         
Items Per Page:
Showing 1-20 of 571 | < Previous Next >
These advisories are provided on an "as is" basis and do not imply any kind of guarantee or warranty. Your use of the information in the advisories or material linked from the advisories is at your own risk. Cisco reserves the right to change or update the advisories without notice at any time.

Latest News

March 14, 2014

In February 2014, Cisco announced details of an industry-wide issue with memory components manufactured by a single supplier between 2005 and 2010. Although the majority of Cisco products that use these components are experiencing field failure rates below expected levels, a device reload or power cycle could expose component failures.


While there are no known security implications associated with this issue, a subset of the affected products may experience a memory component failure during the software upgrade process. Cisco recommends customers review the related information and product-specific field notices at www.cisco.com/go/memory before making upgrade decisions. Each Field Notice indicates whether the product could experience the memory component failure during a software upgrade.