CVE-2019-1923

Cisco Small Business SPA500 Series IP Phones Local Command Execution Vulnerability

MEDIUM
6.6
CVSS Score
Published: July 17, 2019 at 08:25 PM UTC
Updated: June 17, 2026 at 02:29 AM UTC
21 products affected across 1 vendorSpa 514G FirmwareSpa 504G FirmwareSpa 501G Firmware

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Severity
MEDIUM6.6
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

Description

A vulnerability in Cisco Small Business SPA500 Series IP Phones could allow a physically proximate attacker to execute arbitrary commands on the device. The vulnerability is due to improper input validation in the device configuration interface. An attacker could exploit this vulnerability by accessing the configuration interface, which may require a password, and then accessing the device's physical interface and inserting a USB storage device. A successful exploit could allow the attacker to execute arbitrary commands on the device in an elevated security context. At the time of publication, this vulnerability affected Cisco Small Business SPA500 Series IP Phones firmware releases 7.6.2SR5 and prior.

Affected

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

v ≤ 7.6.2sr5
cisco-spa501g (same device)
v ≤ 7.6.2sr5
cisco-spa502g (same device)
v ≤ 7.6.2sr5
cisco-spa504g (same device)
v ≤ 7.6.2sr5
cisco-spa508g (same device)
v ≤ 7.6.2sr5
cisco-spa509g (same device)
v ≤ 7.6.2sr5
cisco-spa512g (same device)
v ≤ 7.6.2sr5
cisco-spa514g (same device)
v ≤ 7.6.2sr5
cisco-spa500ds (same device)
v ≤ 7.6.2sr5
cisco-spa500s (same device)
v ≤ 7.6.2sr5
cisco-spa525g2 (same device)

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

Quick Info

StatusMODIFIED
CWE
CWE-77CWE-20

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