Unauthenticated device crash via unbounded parameter copy
Published Jun 9, 2026 · Updated Jun 9, 2026
Classic buffer overflow in the Tenda G0 15.11.0.5 HTTP handler allows remote attackers to crash the device via a crafted request. formIPMacBindDel copies the attacker-controlled IPMacBindIndex value into a fixed-size stack buffer with strcpy and no bounds check. No authentication or user interaction is required; an overlong parameter can crash the process or destabilize the device.
Summary
What happened
Classic buffer overflow in the Tenda G0 15.11.0.5 HTTP handler allows remote attackers to crash the device via a crafted request. formIPMacBindDel copies the attacker-controlled IPMacBindIndex value into a fixed-size stack buffer with strcpy and no bounds check. No authentication or user interaction is required; an overlong parameter can crash the process or destabilize the device.
The record
- CVE
- CVE-2026-36800
- Published
- Jun 9, 2026
- Updated
- Jun 9, 2026
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- T1499.004
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jun 9, 2026CVE publishedPublication date reported by the CVE source.
- Jun 9, 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?
What conditions does exploitation require?
What is affected?
Affected products and versions are unavailable in this record.
Published CVSS scores
No CVSS assessment is available in this record.
CVSS describes severity. EPSS estimates exploitation probability.
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
- formIPMacBindDel oversized-parameter proof of conceptproof of concept · unverified
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Technologies
Your stack
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Your stack
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