Cisco SPA112 2-Port Phone Adapters Remote Command Execution Vulnerability
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-306.
Summary
A vulnerability in the web-based management interface of Cisco SPA112 2-Port Phone Adapters could allow an unauthenticated, remote attacker to execute arbitrary code on an affected device. This vulnerability is due to a missing authentication process within the firmware upgrade function. An attacker could exploit this vulnerability by upgrading an affected device to a crafted version of firmware. A successful exploit could allow the attacker to execute arbitrary code on the affected device with full privileges. Cisco has not released firmware updates to address this vulnerability.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Cisco | Cisco Small Business IP Phones | all versions | — | No fix listed | CNA |
- Cisco Small Business IP Phones VendorCisco Affected all versions Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2023-20126
- 2026-10-03 Alias added: GHSA-x7fj-4595-2pp2
References
More Cisco Spa112 Firmware vulnerabilities
- TI-2019-11367 Cisco SPA100 Series Analog Telephone Adapters Remote Code Execution Vulnerabilities CVSS 3.1HIGH 8.0
- TI-2019-11366 Cisco SPA100 Series Analog Telephone Adapters Remote Code Execution Vulnerabilities CVSS 3.1HIGH 8.0
- TI-2019-11365 Cisco SPA100 Series Analog Telephone Adapters Remote Code Execution Vulnerabilities CVSS 3.1HIGH 8.0
- TI-2019-11364 Cisco SPA100 Series Analog Telephone Adapters Remote Code Execution Vulnerabilities CVSS 3.1HIGH 8.0
- TI-2019-11363 Cisco SPA100 Series Analog Telephone Adapters Remote Code Execution Vulnerabilities CVSS 3.1HIGH 8.0
- TI-2019-11362 Cisco SPA100 Series Analog Telephone Adapters Remote Code Execution Vulnerabilities CVSS 3.1HIGH 8.0
Sources
- CVE-2023-20126 · CVE Program
- CVE-2023-20126 · NVD
- FIRST EPSS
- GHSA-x7fj-4595-2pp2 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences