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CVE Vulnerability Details :
CVE-2025-65855
PUBLISHED
More InfoOfficial Page
Assigner-mitre
Assigner Org ID-8254265b-2729-46b6-b9e3-3dfca2d5bfca
View Known Exploited Vulnerability (KEV) details
Published At-17 Dec, 2025 | 00:00
Updated At-17 Dec, 2025 | 16:52
Rejected At-
▼CVE Numbering Authority (CNA)

The OTA firmware update mechanism in Netun Solutions HelpFlash IoT (firmware v18_178_221102_ASCII_PRO_1R5_50) uses hard-coded WiFi credentials identical across all devices and does not authenticate update servers or validate firmware signatures. An attacker with brief physical access can activate OTA mode (8-second button press), create a malicious WiFi AP using the known credentials, and serve malicious firmware via unauthenticated HTTP to achieve arbitrary code execution on this safety-critical emergency signaling device.

Affected Products
Vendor
n/a
Product
n/a
Versions
Affected
  • n/a
Problem Types
TypeCWE IDDescription
textN/An/a
Type: text
CWE ID: N/A
Description: n/a
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://docs.espressif.com/projects/esp-idf/en/v4.3.2/
N/A
https://luismirandaacebedo.github.io/CVE-2025-65855/
N/A
Hyperlink: https://docs.espressif.com/projects/esp-idf/en/v4.3.2/
Resource: N/A
Hyperlink: https://luismirandaacebedo.github.io/CVE-2025-65855/
Resource: N/A
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Problem Types
TypeCWE IDDescription
CWECWE-798CWE-798 Use of Hard-coded Credentials
CWECWE-494CWE-494 Download of Code Without Integrity Check
CWECWE-319CWE-319 Cleartext Transmission of Sensitive Information
Type: CWE
CWE ID: CWE-798
Description: CWE-798 Use of Hard-coded Credentials
Type: CWE
CWE ID: CWE-494
Description: CWE-494 Download of Code Without Integrity Check
Type: CWE
CWE ID: CWE-319
Description: CWE-319 Cleartext Transmission of Sensitive Information
Metrics
VersionBase scoreBase severityVector
3.16.6MEDIUM
CVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Version: 3.1
Base score: 6.6
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Details not found