Mercusys AC12G (EU) V1 router with firmware AC12G(EU)_V1_200909 uses a static authentication nonce that does not change between requests from the same source IP. Combined with the predictable XOR-based password encoding (securityEncode function), this allows an attacker to reverse captured authentication tokens to recover the plaintext password.
Project Subscriptions
No data.
Advisories
No advisories yet.
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Wed, 03 Jun 2026 18:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Title | Static Nonce and Predictable XOR Encoding Enable Recovery of Plaintext Passwords on Mercusys AC12G Router | |
| Weaknesses | CWE-326 |
Wed, 03 Jun 2026 17:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Mercusys AC12G (EU) V1 router with firmware AC12G(EU)_V1_200909 uses a static authentication nonce that does not change between requests from the same source IP. Combined with the predictable XOR-based password encoding (securityEncode function), this allows an attacker to reverse captured authentication tokens to recover the plaintext password. | |
| References |
|
Projects
Sign in to view the affected projects.
Status: PUBLISHED
Assigner: mitre
Published:
Updated: 2026-06-03T16:09:04.378Z
Reserved: 2026-04-06T00:00:00.000Z
Link: CVE-2026-36609
No data.
Status : Received
Published: 2026-06-03T18:16:22.063
Modified: 2026-06-03T18:16:22.063
Link: CVE-2026-36609
No data.
OpenCVE Enrichment
Updated: 2026-06-03T18:30:36Z
Weaknesses