CVE-2020-3176

Cisco Remote PHY Device Software Command Injection Vulnerability

MEDIUM
6.7
CVSS Score
Published: March 4, 2020 at 06:40 PM UTC
Updated: June 17, 2026 at 03:17 AM UTC
7 products affected across 1 vendorRemote Phy 220 FirmwareRemote Phy 120 FirmwareRemote Phy Shelf 7200 Firmware

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Severity
MEDIUM6.7
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

A vulnerability in Cisco Remote PHY Device Software could allow an authenticated, local attacker to execute commands on the underlying Linux shell of an affected device with root privileges. The vulnerability exists because the affected software does not properly sanitize user-supplied input. An attacker who has valid administrator access to an affected device could exploit this vulnerability by supplying certain CLI commands with crafted arguments. A successful exploit could allow the attacker to run arbitrary commands as the root user, which could result in a complete system compromise.

Affected

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

v < 7.7
Affected range stops below 7.7, so it looks safe — our inference, not a vendor statement
cisco-remote-phy-120 (same device)
All versions
cisco-remote-phy-220 (same device)
All versions
cisco-remote-phy-shelf-7200 (same device)
All versions
All versions
All versions
All versions

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

Attack Vector
LOCAL
Complexity
LOW
Privileges
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-77CWE-78

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