CVE-2026-78860

Plaintext Storage Enables Local Code Execution on Mercusys AC12 V2 Router

Published Oct 5, 2026 CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Description
An issue in Mercusys AC12 V2 allows a local attacker to execute arbitrary code via the storage of information in plaintext

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Mercusys
Mercusys ac12 V2
Vendors & Products Mercusys
Mercusys ac12 V2
Type Values Removed Values Added
Title Plaintext Storage Enables Local Code Execution on Mercusys AC12 V2 Router
Type Values Removed Values Added
Title Local Code Execution via Plaintext Storage in Mercusys AC12 V2
Weaknesses CWE-200
CWE-284
Type Values Removed Values Added
Weaknesses CWE-311
CWE-347
Metrics cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Title Local Code Execution via Plaintext Storage in Mercusys AC12 V2
Weaknesses CWE-200
CWE-284
Type Values Removed Values Added
Description An issue in Mercusys AC12 V2 allows a local attacker to execute arbitrary code via the storage of information in plaintext
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Oct 6, 2026, 2:48 PM
Reserved
Aug 25, 2026, 12:00 AM
Status
Deferred
Published
Oct 5, 2026, 8:17 PM
Modified
Oct 6, 2026, 3:17 PM