Traffic disclosure and tampering via derivable key
Published Aug 10, 2026 · Updated Aug 10, 2026
Cryptographic failure in DEEBOT PRO M1 before M1-1.7.27 and K1 VAC before V1.7.821 allows attackers to read and alter WebSocket traffic. The WebSocket authentication algorithm exposes enough information in captured traffic to recover its private key, defeating secrecy and integrity controls. A man-in-the-middle position and captured traffic are required; the recovered key permits communication disclosure and message modification.
Summary
What happened
Cryptographic failure in DEEBOT PRO M1 before M1-1.7.27 and K1 VAC before V1.7.821 allows attackers to read and alter WebSocket traffic. The WebSocket authentication algorithm exposes enough information in captured traffic to recover its private key, defeating secrecy and integrity controls. A man-in-the-middle position and captured traffic are required; the recovered key permits communication disclosure and message modification.
The record
- CVE
- CVE-2026-66407
- Published
- Aug 10, 2026
- Updated
- Aug 10, 2026
- Vendor
- ECOVACS Robotics Co., Ltd.
- Product
- DEEBOT PRO K1 VAC
- Classifications
- CWE-327, T1557
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Aug 10, 2026CVE publishedPublication date reported by the CVE source.
- Aug 10, 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=0 <V1.7.821
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
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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