Physical code execution via oversized USB packets
Published Jul 29, 2026 · Updated Jul 29, 2026
Heap-based buffer overflow in Autel MaxiCharger AC Elite Home 1.39.51 allows physically proximate attackers to execute arbitrary code via USB. The custom USB packet handler copies attacker-controlled data into a fixed-length heap buffer without validating the supplied length. Physical access to the charger's USB interface is required, but authentication is not, and successful exploitation runs code in the device context.
Summary
What happened
Heap-based buffer overflow in Autel MaxiCharger AC Elite Home 1.39.51 allows physically proximate attackers to execute arbitrary code via USB. The custom USB packet handler copies attacker-controlled data into a fixed-length heap buffer without validating the supplied length. Physical access to the charger's USB interface is required, but authentication is not, and successful exploitation runs code in the device context.
The record
- CVE
- CVE-2026-13307
- Published
- Jul 29, 2026
- Updated
- Jul 29, 2026
- Vendor
- Autel
- Product
- MaxiCharger AC Elite Home
- Classifications
- CWE-122, T1200
- Attack vector
- physical
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jul 29, 2026CVE publishedPublication date reported by the CVE source.
- Jul 29, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=1.39.51
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
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Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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