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CVE-2026-36604

MEDIUM Exploitation: PoC
6.5
CVSS 3.1
Description
Mercusys AC12G (EU) V1 router with firmware AC12G(EU)_V1_200909 does not validate the HTTP Host header, enabling DNS rebinding attacks. An external attacker can rebind a domain to the router's internal IP address, extending the CORS wildcard vulnerability (Access-Control-Allow-Origin: *) to internet-originated attacks.

Metadata

CVE ID
CVE-2026-36604
State
PUBLISHED
Assigner
mitre
Reserved
2026-04-06 00:00 UTC
Published
2026-06-03 00:00 UTC
Last updated
2026-06-03 19:41 UTC
Primary CWE
CWE-350
CWE-350 Reliance on Reverse DNS Resolution for a Security-Cr…
Vendor / Product
n/a / n/a
Sources
cve.org  ·  NVD

Severity & Metrics

6.5 MEDIUM CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
SSVC — CISA Coordinator
Exploitation
PoC
Automatable
no
Tech. Impact
partial
Affected products (1)
VendorProductPlatformVersions
n/a n/a — n/a
Weakness (CWE)
CWESourceDescription
— cna n/a
CWE-350 adp CWE-350 Reliance on Reverse DNS Resolution for a Security-Critical Action
CVSS scores (1)
ScoreSeverityVersionSourceVector
6.5 MEDIUM 3.1 adp CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
References (1)
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