CVE-2026-8987 Authenticated Heap Overflow

What is CVE-2026-8987?

CVE-2026-8987 is a critical memory corruption vulnerability in Autel MaxiCharger Single, published on 21 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

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.

Weakness: CWE-122

Which versions are affected by CVE-2026-8987?

It affects 1 product.

Products include Autel Maxicharger Single Charger Firmware.

How do I fix CVE-2026-8987?

No fix has been published for CVE-2026-8987 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2026-8987 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-8987 exists.

Other vulnerabilities in Autel MaxiCharger Single

• CVE-2026-8982 Hard-coded / Backdoor Accounts Critical 10.0
• CVE-2026-8983 Backdoor Authentication Token Critical 10.0
• CVE-2026-8984 Unauthenticated RCE Critical 10.0
• CVE-2026-8985 Unauthenticated Command Injection Critical 10.0
• CVE-2026-8986 Command Injection via Malicious OCPP Server Critical 9.5

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-qh3x-7q6p-6x7f.