What is CVE-2026-8987?

CVE-2026-8987 is a high-severity vulnerability in Autel Maxicharger Single, classified under Heap-based Buffer Overflow. CVSS score: 8.8/10. Published 2026-07-21.

How severe is CVE-2026-8987?

High severity. CVSS v3 base score is 8.8 out of 10.

Buffer overflow in Autel Maxicharger Single

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.

Vulnerability class: Buffer Overflow

Published 2026-07-21 · last modified 2026-08-13.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.006 (49.8th percentile), scored 2026-10-22.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 50th percentile — 49.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.006 · change: +0.001

Affected products

Weakness classification (CWE)

CWE-122 — Heap-based Buffer Overflow

References

cyberdanube.com/security-research/multiple-vulnerabilities-in-autel-maxi-charge… (Exploit, Third Party Advisory, exploit, third-party-advisory)

Frequently asked questions

What is CVE-2026-8987?: CVE-2026-8987 is a high-severity vulnerability in Autel Maxicharger Single, classified under Heap-based Buffer Overflow. CVSS score: 8.8/10. Published 2026-07-21.
How severe is CVE-2026-8987?: High severity. CVSS v3 base score is 8.8 out of 10.