Cross Site Scripting (XSS) vulnerability in Teradek Sphere all firmware versions allows…
Priority MEDIUM 58CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-79.
Summary
Cross Site Scripting (XSS) vulnerability in Teradek Sphere all firmware versions allows remote attackers to run arbitrary code via the Friendly Name field in System Information Settings. NOTE: Vedor states the product has reached End of Life and will not be receiving any firmware updates to address this issue.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00589 48th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- 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 |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:teradek:sphere_firmware:*:*:*:*:*:*:*:* | all versions | Vulnerable | Teradek, LLC |
| cpe:2.3:h:teradek:sphere:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Teradek, LLC |
- cpe:2.3:o:teradek:sphere_firmware:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Teradek, LLC
- cpe:2.3:h:teradek:sphere:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Teradek, LLC
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-37379
- 2026-10-03 Alias added: GHSA-865w-mq7p-j8f4
References
Sources
- CVE-2021-37379 · CVE Program
- CVE-2021-37379 · NVD
- FIRST EPSS
- GHSA-865w-mq7p-j8f4 · 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