Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

CVE-2013-5543

Cisco IOS XE 3.4 before 3.4.2S and 3.5 before 3.5.1S on 1000 ASR devices allows remote attackers to cause a denial of service (device reload) via malformed ICMP error packets associated with a (1) TCP or (2) UDP session that is under inspection by the Zone-Based Firewall (ZBFW) component, aka Bug ID CSCtt26470.

Published

2013-10-31T21:55:02.830

Last Modified

2025-04-11T00:51:21.963

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 7.8 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: NONE
  • Integrity Impact: NONE
  • Availability Impact: COMPLETE
Exploitability Score

10.0

Impact Score

6.9

Weaknesses
  • Type: Primary
    CWE-20
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System cisco ios_xe 3.4.0as Yes
Operating System cisco ios_xe 3.4.0s Yes
Operating System cisco ios_xe 3.4.1s Yes
Hardware cisco asr_1001 - Yes
Hardware cisco asr_1002 - Yes
Hardware cisco asr_1002-x - Yes
Hardware cisco asr_1004 - Yes
Hardware cisco asr_1006 - Yes
Hardware cisco asr_1023_router - Yes
References