CVE-2019-1741
HIGHCisco IOS XE - Denial of Service via Malformed IP Packet Handling
Title source: llmDescription
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.
References (2)
Core 2
Core References
Patch, Vendor Advisory vendor-advisory
x_refsource_cisco
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190327-eta-dos
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/107614
Scores
CVSS v3
7.5
EPSS
0.0276
EPSS Percentile
84.5%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-20
CWE-416
Status
published
Products (14)
cisco/ios_xe
3.2.0ja
cisco/ios_xe
16.6.1
cisco/ios_xe
16.6.2
cisco/ios_xe
16.6.3
cisco/ios_xe
16.7.1
cisco/ios_xe
16.7.1a
cisco/ios_xe
16.7.1b
cisco/ios_xe
16.8.1
cisco/ios_xe
16.8.1a
cisco/ios_xe
16.8.1b
... and 4 more
Published
Mar 28, 2019
Tracked Since
Feb 18, 2026