CVE-2019-1659

Cisco Prime Infrastructure Certificate Validation Vulnerability

HIGH
7.4
CVSS Score
Published: February 21, 2019 at 03:00 PM UTC
Updated: June 17, 2026 at 02:28 AM UTC
1 product affected across 1 vendorPrime Infrastructure

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Severity
HIGH7.4
Exploit prediction
EPSS 0.8%
SSVC
No known exploit

Description

A vulnerability in the Identity Services Engine (ISE) integration feature of Cisco Prime Infrastructure (PI) could allow an unauthenticated, remote attacker to perform a man-in-the-middle attack against the Secure Sockets Layer (SSL) tunnel established between ISE and PI. The vulnerability is due to improper validation of the server SSL certificate when establishing the SSL tunnel with ISE. An attacker could exploit this vulnerability by using a crafted SSL certificate and could then intercept communications between the ISE and PI. A successful exploit could allow the attacker to view and alter potentially sensitive information that the ISE maintains about clients that are connected to the network. This vulnerability affects Cisco Prime Infrastructure Software Releases 2.2 through 3.4.0 when the PI server is integrated with ISE, which is disabled by default.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v ≥ next of 2.2v < 3.52.2 ≤ v ≤ 3.4.0next of 2.2
Affected range stops below 3.5, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.4HIGHcisco
Attack Vector
NETWORK
Complexity
HIGH
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-295

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