Cisco SPA112, SPA525, and SPA5x5 Series IP Phones Certificate Validation Vulnerability
Priority LOW 34CWE-295Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- Spoofing
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-295.
Summary
A vulnerability in the certificate handling component of the Cisco SPA112, SPA525, and SPA5X5 Series IP Phones could allow an unauthenticated, remote attacker to listen to or control some aspects of a Transport Level Security (TLS)-encrypted Session Initiation Protocol (SIP) conversation. The vulnerability is due to the improper validation of server certificates. An attacker could exploit this vulnerability by crafting a malicious server certificate to present to the client. An exploit could allow an attacker to eavesdrop on TLS-encrypted traffic and potentially route or redirect calls initiated by an affected device. Affected software include version 7.6.2 of the Cisco Small Business SPA525 Series IP Phones and Cisco Small Business SPA5X5 Series IP Phones and version 1.4.2 of the Cisco Small Business SPA500 Series IP Phones and Cisco Small Business SPA112 Series IP Phones.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00874 59th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
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 SPA500 Series IP Phones | 1.4.2 | — | No fix listed | CNA |
| Cisco | Cisco Small Business SPA112 Series IP Phones | 1.4.2 | — | No fix listed | CNA |
| Cisco | Cisco Small Business SPA525 Series IP Phones | 7.6.2 | — | No fix listed | CNA |
| Cisco | Cisco Small Business SPA5X5 Series IP Phones | 7.6.2 | — | No fix listed | CNA |
- Cisco Small Business SPA500 Series IP Phones VendorCisco Affected 1.4.2 Fixed in — No fix listed CNA
- Cisco Small Business SPA112 Series IP Phones VendorCisco Affected 1.4.2 Fixed in — No fix listed CNA
- Cisco Small Business SPA525 Series IP Phones VendorCisco Affected 7.6.2 Fixed in — No fix listed CNA
- Cisco Small Business SPA5X5 Series IP Phones VendorCisco Affected 7.6.2 Fixed in — No fix listed CNA
CPE configurations NVD · 28
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:cisco:spa112_firmware:1.4.2:*:*:*:*:*:*:* | 1.4.2 | Vulnerable | Cisco |
| cpe:2.3:h:cisco:spa112:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:spa525_firmware:7.6.2:*:*:*:*:*:*:* | 7.6.2 | Vulnerable | Cisco |
| cpe:2.3:h:cisco:spa525:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:spa5x5_firmware:7.6.2:*:*:*:*:*:*:* | 7.6.2 | Vulnerable | Cisco |
| cpe:2.3:h:cisco:spa5x5:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:spa500_firmware:1.4.2:*:*:*:*:*:*:* | 1.4.2 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:spa500:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:spa500s_firmware:1.4.2:*:*:*:*:*:*:* | 1.4.2 | Vulnerable | Cisco |
| cpe:2.3:h:cisco:spa500s:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
- cpe:2.3:o:cisco:spa112_firmware:1.4.2:*:*:*:*:*:*:* Versions 1.4.2 Vulnerable ·Cisco
- cpe:2.3:h:cisco:spa112:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:spa525_firmware:7.6.2:*:*:*:*:*:*:* Versions 7.6.2 Vulnerable ·Cisco
- cpe:2.3:h:cisco:spa525:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:spa5x5_firmware:7.6.2:*:*:*:*:*:*:* Versions 7.6.2 Vulnerable ·Cisco
- cpe:2.3:h:cisco:spa5x5:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:spa500_firmware:1.4.2:*:*:*:*:*:*:* Versions 1.4.2 Vulnerable ·Cisco
- cpe:2.3:o:cisco:spa500:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:spa500s_firmware:1.4.2:*:*:*:*:*:*:* Versions 1.4.2 Vulnerable ·Cisco
- cpe:2.3:h:cisco:spa500s:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
Show 18 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:cisco:spa500ds_firmware:1.4.2:*:*:*:*:*:*:* | 1.4.2 | Vulnerable | Cisco |
| cpe:2.3:h:cisco:spa500ds:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:spa501g_firmware:1.4.2:*:*:*:*:*:*:* | 1.4.2 | Vulnerable | Cisco |
| cpe:2.3:h:cisco:spa501g:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:spa502g_firmware:1.4.2:*:*:*:*:*:*:* | 1.4.2 | Vulnerable | Cisco |
| cpe:2.3:h:cisco:spa502g:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:spa504g_firmware:1.4.2:*:*:*:*:*:*:* | 1.4.2 | Vulnerable | Cisco |
| cpe:2.3:h:cisco:spa504g:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:spa508g_firmware:1.4.2:*:*:*:*:*:*:* | 1.4.2 | Vulnerable | Cisco |
| cpe:2.3:h:cisco:spa508g:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:spa509g_firmware:1.4.2:*:*:*:*:*:*:* | 1.4.2 | Vulnerable | Cisco |
| cpe:2.3:h:cisco:spa509g:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:spa512g_firmware:1.4.2:*:*:*:*:*:*:* | 1.4.2 | Vulnerable | Cisco |
| cpe:2.3:h:cisco:spa512g:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:spa514g_firmware:1.4.2:*:*:*:*:*:*:* | 1.4.2 | Vulnerable | Cisco |
| cpe:2.3:h:cisco:spa514g:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:spa525g_firmware:1.4.2:*:*:*:*:*:*:* | 1.4.2 | Vulnerable | Cisco |
| cpe:2.3:h:cisco:spa525g:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
- cpe:2.3:o:cisco:spa500ds_firmware:1.4.2:*:*:*:*:*:*:* Versions 1.4.2 Vulnerable ·Cisco
- cpe:2.3:h:cisco:spa500ds:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:spa501g_firmware:1.4.2:*:*:*:*:*:*:* Versions 1.4.2 Vulnerable ·Cisco
- cpe:2.3:h:cisco:spa501g:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:spa502g_firmware:1.4.2:*:*:*:*:*:*:* Versions 1.4.2 Vulnerable ·Cisco
- cpe:2.3:h:cisco:spa502g:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:spa504g_firmware:1.4.2:*:*:*:*:*:*:* Versions 1.4.2 Vulnerable ·Cisco
- cpe:2.3:h:cisco:spa504g:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:spa508g_firmware:1.4.2:*:*:*:*:*:*:* Versions 1.4.2 Vulnerable ·Cisco
- cpe:2.3:h:cisco:spa508g:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:spa509g_firmware:1.4.2:*:*:*:*:*:*:* Versions 1.4.2 Vulnerable ·Cisco
- cpe:2.3:h:cisco:spa509g:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:spa512g_firmware:1.4.2:*:*:*:*:*:*:* Versions 1.4.2 Vulnerable ·Cisco
- cpe:2.3:h:cisco:spa512g:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:spa514g_firmware:1.4.2:*:*:*:*:*:*:* Versions 1.4.2 Vulnerable ·Cisco
- cpe:2.3:h:cisco:spa514g:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:spa525g_firmware:1.4.2:*:*:*:*:*:*:* Versions 1.4.2 Vulnerable ·Cisco
- cpe:2.3:h:cisco:spa525g:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2019-1683
- 2026-10-03 Alias added: GHSA-jhfq-9hcr-5qqv
References
More Cisco Spa112 Firmware vulnerabilities
- TI-2023-06833 Cisco SPA112 2-Port Phone Adapters Remote Command Execution Vulnerability CVSS 3.1CRITICAL 9.8
- 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
Sources
- CVE-2019-1683 · CVE Program
- CVE-2019-1683 · NVD
- FIRST EPSS
- GHSA-jhfq-9hcr-5qqv · 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