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CVE-2021-37378

19
FAUCET Score

CVE-2021-37378 is a Cross-Site Scripting (XSS) vulnerability affecting Teradek Cube and Cube Pro firmware versions 7.3.x and earlier. An authenticated remote attacker can inject arbitrary code via the "Friendly Name" field in System Information Settings. This vulnerability has a CVSS score of 5.4 (Medium), indicating a low attack complexity and requiring user interaction, with potential impacts on confidentiality and integrity. There is no evidence of active exploitation, public exploit code, or significant community discussion, and the vendor has stated the affected products are End-of-Life with no planned firmware updates.

Impacted Technologies

VendorProductVersion(s)CPE
>= 7.3.0, <= 7.3.19CPE matchmatch criteria
cpe:2.3:o:teradke:cube_firmware:*:*:*:*:*:*:*:*
>= 7.3.0, <= 7.3.16CPE matchmatch criteria
cpe:2.3:o:teradke:cube_pro_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.4MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.3
Impact Score
2.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.59%
Probability of exploitation in next 30 days
EPSS Percentile
44.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0059 is in the 72nd percentile among its peer group of 15,225 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

tbutler.org / 2021/04/29/teradek-vulnerability-advisory
ExploitThird Party Advisory