CVE-2019-1876

Cisco Wide Area Application Services Software HTTPS Proxy Authentication Bypass Vulnerability

MEDIUM
4
CVSS Score
Published: June 20, 2019 at 03:00 AM UTC
Updated: June 17, 2026 at 02:29 AM UTC
1 product affected across 1 vendorWide Area Application Services

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Severity
MEDIUM4
Exploit prediction
EPSS 2%
SSVC
No known exploit

Description

A vulnerability in the HTTPS proxy feature of Cisco Wide Area Application Services (WAAS) Software could allow an unauthenticated, remote attacker to use the Central Manager as an HTTPS proxy. The vulnerability is due to insufficient authentication of proxy connection requests. An attacker could exploit this vulnerability by sending a malicious HTTPS CONNECT message to the Central Manager. A successful exploit could allow the attacker to access public internet resources that would normally be blocked by corporate policies.

Affected

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

v < 6.4(5.6)5.5(7)6.1(1)6.4(3b)
Affected range stops below 6.4(5.6), 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 automatablePartial impact

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

CVSS

4MEDIUMcisco
Attack Vector
NETWORK
Complexity
HIGH
Privileges
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality
NONE
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-306

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