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High severity7.5NVD Advisory· Published Mar 28, 2019· Updated Jun 17, 2026

CVE-2019-1741

CVE-2019-1741

Description

A vulnerability in the Cisco Encrypted Traffic Analytics (ETA) feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. The vulnerability is due to a logic error that exists when handling a malformed incoming packet, leading to access to an internal data structure after it has been freed. An attacker could exploit this vulnerability by sending crafted, malformed IP packets to an affected device. A successful exploit could allow the attacker to cause an affected device to reload, resulting in a DoS condition.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

17
  • Cisco Systems, Inc./iOS Xe14 versions
    cpe:2.3:o:cisco:ios_xe:16.6.1:*:*:*:*:*:*:*+ 13 more
    • cpe:2.3:o:cisco:ios_xe:16.6.1:*:*:*:*:*:*:*
    • cpe:2.3:o:cisco:ios_xe:16.6.2:*:*:*:*:*:*:*
    • cpe:2.3:o:cisco:ios_xe:16.6.3:*:*:*:*:*:*:*
    • cpe:2.3:o:cisco:ios_xe:16.7.1:*:*:*:*:*:*:*
    • cpe:2.3:o:cisco:ios_xe:16.7.1a:*:*:*:*:*:*:*
    • cpe:2.3:o:cisco:ios_xe:16.7.1b:*:*:*:*:*:*:*
    • cpe:2.3:o:cisco:ios_xe:16.8.1:*:*:*:*:*:*:*
    • cpe:2.3:o:cisco:ios_xe:16.8.1a:*:*:*:*:*:*:*
    • cpe:2.3:o:cisco:ios_xe:16.8.1b:*:*:*:*:*:*:*
    • cpe:2.3:o:cisco:ios_xe:16.8.1c:*:*:*:*:*:*:*
    • cpe:2.3:o:cisco:ios_xe:16.8.1d:*:*:*:*:*:*:*
    • cpe:2.3:o:cisco:ios_xe:16.8.1e:*:*:*:*:*:*:*
    • cpe:2.3:o:cisco:ios_xe:16.8.1s:*:*:*:*:*:*:*
    • cpe:2.3:o:cisco:ios_xe:3.2.0ja:*:*:*:*:*:*:*
  • Cisco Systems, Inc./Encrypted Traffic Analyticsllm-create
  • Cisco Systems, Inc./IOS and IOS XE Softwarellm-fuzzy
  • Cisco Systems, Inc./IOS XE Software for Cisco Merakicpe-rescue
    Range: 3.2.0JA

Patches

Vulnerability mechanics

References

2

News mentions

0

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