CVE-2019-15258: Cisco SPA100 Series Analog Telephone Adapters Web Management Interface Denial of Service Vulnerability

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.4% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2019-10-16 · updated 2026-06-17
Weakness: CWE-399

Description

A vulnerability in the web-based management interface of Cisco SPA100 Series Analog Telephone Adapters (ATAs) could allow an authenticated, remote attacker to cause a denial of service condition on an affected device. The vulnerability is due to improper validation of user-supplied requests to the web-based management interface. An attacker could exploit this vulnerability by sending a crafted request to the web-based management interface of an affected device. A successful exploit could allow the attacker to cause the device to stop responding, requiring manual intervention for recovery.

Affected products

Cisco Spa112 Firmware: before 1.4.1; 1.4.1, 1.4.1-sr1, 1.4.1-sr2, 1.4.1-sr3 — fixed in 1.4.1
Cisco SPA122 ATA with Router: before 1.4.1; 1.4.1, 1.4.1-sr1, 1.4.1-sr2, 1.4.1-sr3 — fixed in 1.4.1

How to fix

Upgrade to a fixed version: Cisco Spa112 Firmware 1.4.1; Cisco SPA122 ATA with Router 1.4.1. Check the vendor advisory for mitigations.

References

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