CVE-2019-1741: Cisco IOS XE Software Encrypted Traffic Analytics Denial of Service Vulnerability

Published Mar 27, 2019
·
Updated

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.

Affected Software

14 affected components
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
Cisco IOS XE=16.8.1c
Cisco IOS XE=16.8.1d
Cisco IOS XE=16.8.1e
Cisco IOS XE=16.8.1s

Event History

Mar 27, 2019
CVE Published
via MITRE·11:25 PM
Data Sourced
via MITRE·11:25 PM
DescriptionSeverityWeakness
Mar 28, 2019
Data Sourced
via NVD·12:29 AM
RemedyDescriptionSeverityWeaknessAffected Software

Frequently Asked Questions

1

What is the severity of CVE-2019-1741?

The severity of CVE-2019-1741 is considered high due to the potential for a denial of service condition.

2

How do I fix CVE-2019-1741?

To fix CVE-2019-1741, update Cisco IOS XE Software to the latest patched version provided by Cisco.

3

What versions of Cisco IOS XE are affected by CVE-2019-1741?

CVE-2019-1741 affects multiple versions, including 3.2.0ja and several 16.x versions up to 16.8.1s.

4

Can CVE-2019-1741 be exploited remotely?

Yes, CVE-2019-1741 can be exploited remotely by an unauthenticated attacker.

5

What impact does CVE-2019-1741 have on network devices?

CVE-2019-1741 can lead to a denial of service condition, disrupting normal operations of affected network devices.

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203