CVE-2019-7391

HIGH

ZyXEL VMG3312-B10B DSL-491HUNU-B1B v2 - CSRF

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2019-7391. PoCs published by Yusuf Furkan.

AI-analyzed exploit summary This is a CSRF exploit targeting Zyxel VMG3312-B10B and DSL-491HNU-B1B v2 modems. It submits a login request with default credentials (admin/1234) to the router's login page, potentially allowing an attacker to hijack an authenticated session.

Description

ZyXEL VMG3312-B10B DSL-491HNU-B1B v2 devices allow login/login-page.cgi CSRF.

Exploits (1)

exploitdb WORKING POC
by Yusuf Furkan · htmlwebappshardware
https://www.exploit-db.com/exploits/46326

This is a CSRF exploit targeting Zyxel VMG3312-B10B and DSL-491HNU-B1B v2 modems. It submits a login request with default credentials (admin/1234) to the router's login page, potentially allowing an attacker to hijack an authenticated session.

Classification
Working Poc 90%
Attack Type
Auth Bypass
Complexity
Trivial
Reliability
Reliable
Target: Zyxel VMG3312-B10B, DSL-491HNU-B1B v2
No auth needed
Prerequisites: Victim must be authenticated to the router's web interface · Attacker must trick victim into visiting a malicious page
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (4)

Core 4
Core References
Exploit, Third Party Advisory, VDB Entry exploit x_refsource_exploit-db
https://www.exploit-db.com/exploits/46326/
Third Party Advisory x_refsource_misc
https://twitter.com/h1_yusuf

Scores

CVSS v3 8.8
EPSS 0.0061
EPSS Percentile 70.2%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Details

CWE
CWE-352
Status published
Products (2)
zyxel/dsl-491hnu-b10b_firmware
zyxel/dsl-491hnu-b1b_v2_firmware
Published Mar 21, 2019
Tracked Since Feb 18, 2026