Read the docs
TI-2026-67875 Aliases CVE-2026-78860GHSA-j47g-wqf7-q7w8

Plaintext storage in Mercusys AC12 V2 allows local code execution

Priority HIGH 69CWE-311Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Information disclosure, Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-311 and CWE-347.

Summary

Mercusys AC12 V2 is affected, and the sources give no version range. An issue stores sensitive information in plaintext (CWE-311), which lets a local attacker with low privileges execute arbitrary code. No user interaction is required, and the attack can fully affect confidentiality, integrity and availability.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

An issue in Mercusys AC12 V2 allows a local attacker to execute arbitrary code via the storage of information in plaintext

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00123 2nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for Mercusys AC12 V2.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Timeline

  1. 2026-10-05 Threatist record created from CVE-2026-78860
  2. 2026-10-06 Alias added: GHSA-j47g-wqf7-q7w8
  3. 2026-10-06 CVSS score added · CISA ADP
  4. 2026-10-06 Weakness changed · CISA ADP
  5. 2026-10-06 CISA SSVC decision points changed
  6. 2026-10-06 Priority changed: LOW → HIGH

References

Other 2

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences