CVE-2021-34701

Cisco Unified Communications Products Path Traversal Vulnerability

MEDIUM
4.3
CVSS Score
Published: November 4, 2021 at 03:40 PM UTC
Updated: June 17, 2026 at 03:56 AM UTC
3 products affected across 1 vendorUnified Communications ManagerUnity ConnectionUnified Communications Manager Im and Presence Service

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Severity
MEDIUM4.3
Exploit prediction
EPSS 2%
SSVC
No known exploit

Description

A vulnerability in the web-based management interface of Cisco Unified Communications Manager (Unified CM), Cisco Unified Communications Manager Session Management Edition (Unified CM SME), Cisco Unified Communications Manager IM & Presence Service (Unified CM IM&P), and Cisco Unity Connection could allow an authenticated, remote attacker to access sensitive data on an affected device. This vulnerability exists because the web-based management interface does not properly validate user-supplied input. An attacker could exploit this vulnerability by sending a crafted HTTP request that contains directory traversal character sequences to an affected system. A successful exploit could allow the attacker to access sensitive files on the affected system.

Affected

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

v < 14su1
Affected range stops below 14su1, so it looks safe — our inference, not a vendor statement
v < 14su1
Affected range stops below 14su1, so it looks safe — our inference, not a vendor statement
v < 14su1
Affected range stops below 14su1, 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

4.3MEDIUMcisco
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-22

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