SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAwaiting Analysis

CVE-2026-29797

No authentication is required when updating firmware or bootloader, making it easy for malicious files to be pushed to the device.

HIGH 8.4EPSS 0.16%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.16%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

No authentication is required when updating firmware or bootloader, making it easy for malicious files to be pushed to the device. Additionally, anyone with the same software can scan a network for N-Tron devices and push/pull firmware without authenticating by using SNMP/TFTP.

CVSS 4.0
8.4 HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:N/SC:L/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
EPSS
0.16% probability · 5th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-494
Source
ics-cert@hq.dhs.gov
EPSS trend
0%3%5%10 October 2026: 0.16%26 October 2026: 0.16%10 October 202626 October 2026

EPSS moved from 0.2% on 10 October 2026 to 0.2% on 26 October 2026.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.