CVE-2019-15249: Cisco SPA100 Series Analog Telephone Adapters Remote Code Execution Vulnerabilities

Severity: high (CVSS 8.0 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2019-10-16 · updated 2026-06-17
Weakness: CWE-119

Description

Multiple vulnerabilities in Cisco SPA100 Series Analog Telephone Adapters (ATAs) could allow an authenticated, adjacent attacker to execute arbitrary code with elevated privileges. The vulnerabilities are due to improper validation of user-supplied input to the web-based management interface. An attacker could exploit these vulnerabilities by authenticating to the web-based management interface and sending crafted requests to an affected device. A successful exploit could allow the attacker to execute arbitrary code with elevated privileges. Note: The web-based management interface is enabled by default.

Affected products

Cisco Spa112 Firmware: before 1.4.1; 1.4.1, 1.4.1-sr1, 1.4.1-sr2, 1.4.1-sr3, 1.4.1-sr4 — 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, 1.4.1-sr4 — 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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