What’s Vulnerable › Vulnerabilities

CVE-2026-78862

• Severity: medium (CVSS 6.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-05 · updated 2026-10-06
• Weakness: CWE-1299

Description

An issue in Mercusys AC12 V2 allows a local attacker to execute arbitrary code via the UART serial interface on the printed circuit board (PCB)

References

• http://ac12.com
• http://mercusys.com
• https://threadpoolx.gitbook.io/docs/cve/mercusys-ac12-v2-security-advisory/unprotected-physical-debug-interface-uart
• https://threadpoolx.gitbook.io/docs/cve/mercusys-ac12-v2-security-advisory/unprotected-physical-debug-interface-uart

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