CVE-2024-11981: Billion Electric router - Authentication Bypass

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-11-29 · updated 2026-06-17
Weakness: CWE-288

Description

Certain models of routers from Billion Electric has an Authentication Bypass vulnerability, allowing unautheticated attackers to retrive contents of arbitrary web pages.

Affected products

Billion Electric M100: from 1.04.1.592.* before 1.04.1.592.8; from 1.04.1.613.* before 1.04.1.613.13; from 1.04.1.* < before 1.04.1.675 — fixed in 1.04.1.592.8, 1.04.1.613.13, 1.04.1.675
Billion Electric M120N: from 1.04.1.592.* before 1.04.1.592.8; from 1.04.1.613.* before 1.04.1.613.13; from 1.04.1.* < before 1.04.1.675 — fixed in 1.04.1.592.8, 1.04.1.613.13, 1.04.1.675
Billion Electric M150: from 1.04.1.592.* before 1.04.1.592.8; from 1.04.1.613.* before 1.04.1.613.13; from 1.04.1.* < before 1.04.1.675 — fixed in 1.04.1.592.8, 1.04.1.613.13, 1.04.1.675
Billion Electric M500: from 1.04.1.592.* before 1.04.1.592.8; from 1.04.1.613.* before 1.04.1.613.13; from 1.04.1.* < before 1.04.1.675 — fixed in 1.04.1.592.8, 1.04.1.613.13, 1.04.1.675

How to fix

Upgrade to a fixed version: Billion Electric M100 1.04.1.592.8, 1.04.1.613.13, 1.04.1.675; Billion Electric M120N 1.04.1.592.8, 1.04.1.613.13, 1.04.1.675; Billion Electric M150 1.04.1.592.8, 1.04.1.613.13, 1.04.1.675; Billion Electric M500 1.04.1.592.8, 1.04.1.613.13, 1.04.1.675. Check the vendor advisory for mitigations.

References

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