CVE-2019-12665

Cisco IOS and IOS XE Software HTTP Client Information Disclosure Vulnerability

Description

A vulnerability in the HTTP client feature of Cisco IOS and IOS XE Software could allow an unauthenticated, remote attacker to read and modify data that should normally have been sent via an encrypted channel. The vulnerability is due to TCP port information not being considered when matching new requests to existing, persistent HTTP connections. An attacker could exploit this vulnerability by acting as a man-in-the-middle and then reading and/or modifying data that should normally have been sent through an encrypted channel.

Category

7.4
CVSS
Severity: High
CVSS 3.1 •
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.29%
Vendor Advisory cisco.com
Affected: Cisco Cisco IOS 12.2(15)B
Published at:
Updated at:

References

Frequently Asked Questions

What is the severity of CVE-2019-12665?
CVE-2019-12665 has been scored as a high severity vulnerability.
How to fix CVE-2019-12665?
To fix CVE-2019-12665, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2019-12665 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2019-12665 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2019-12665?
CVE-2019-12665 affects Cisco Cisco IOS 12.2(15)B.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.