Unrated severityNVD Advisory· Published Oct 31, 2013· Updated Jun 16, 2026
CVE-2013-5543
CVE-2013-5543
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
10- cpe:2.3:h:cisco:asr_1001:-:*:*:*:*:*:*:*
- cpe:2.3:h:cisco:asr_1002:-:*:*:*:*:*:*:*
- cpe:2.3:h:cisco:asr_1002-x:-:*:*:*:*:*:*:*
- cpe:2.3:h:cisco:asr_1004:-:*:*:*:*:*:*:*
- cpe:2.3:h:cisco:asr_1006:-:*:*:*:*:*:*:*
- cpe:2.3:h:cisco:asr_1023_router:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.4.0as:*:*:*:*:*:*:*+ 3 more
- cpe:2.3:o:cisco:ios_xe:3.4.0as:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xe:3.4.0s:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xe:3.4.1s:*:*:*:*:*:*:*
- (no CPE)range: <3.4.2S, <3.5.1S
Patches
Vulnerability mechanics
References
1News mentions
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