Authenticated Heap Overflow
CVE-2026-8987

9.4CRITICAL

Key Information:

Vendor

Autel

Status
Maxicharger Single
Vendor
CVE Published:
21 July 2026

Badges

👾 Exploit Exists

What is CVE-2026-8987?

Autel Maxi Charger Single firmware through V1.03.51 contains a heap-based buffer overflow in the set_ap_param command handled by the /localcfg endpoint. An authenticated attacker can supply oversized input, resulting in denial of service and potentially arbitrary code execution.

Affected Version(s)

MaxiCharger Single 0

References

https://cyberdanube.com/security-research/multiple-vulner...
third-party-advisoryexploit

CVSS V4

Score:
9.4
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

S. Eisenreich-Dietz (CyberDanube)
T. Weber (CyberDanube)
D. Blagojevic (CyberDanube)
F. Koroknai (CyberDanube)
.