CVE-2026-40856Disclosure

LOWCVSS 7.1 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

WNC T-Mobile 5G Box IDU router is vulnerable to improper access control. The vulnerability exists in the wnc_maccheck.cgi endpoint, which is accessible without authentication. It allows a remote attacker to retrieve sensitive configuration data, including the administrator web password, WiFi passphrase, and technical device information.This issue has been fixed in firmware version 1.1.0.651412

Back to dashboard

0.0/ 10 priority

Sources & remediation

Other references

https://cert.pl/posts/2026/09/CVE-2026-40854

Weakness type (CWE)

CWE-306

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Threat summary

1 mentions across 1 observed day

What's happening

Technical details provided in 1 signal
Disclosure: 1 classified signal
1 total mentions across 1 day

Deep dive

Activity timeline1 mentions / 1d

Signal classification1 categories

Disclosure

1100.0%

Referenced assets1 URL

By indicator

https://www.cve.org/CVERecord?id=CVE-2026-40856

Full discourse1 post

CVE@CVEnew46d
Disclosure
CVE-2026-40856 WNC T-Mobile 5G Box IDU router is vulnerable to improper access control. The vulnerability exists in the wnc_maccheck.cgi endpoint, which is accessible without authen… https://www.cve.org/CVERecord?id=CVE-2026-40856
Post summary
The text discloses CVE-2026-40856, detailing an improper access control vulnerability in the WNC T-Mobile 5G Box IDU router's wnc_maccheck.cgi endpoint that allows unauthenticated access, without mentioning patches, exploits, or active exploitation.
000001.4K
58.1K followersView on X

Explore more

Back to dashboard