ZDI-26-559: (Pwn2Own) Amazon Smart Plug OTA Update Process Out-Of-Bounds Write Remote Code Execution Vulnerability
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Amazon Smart Plug. Authentication is not required to exploit this vulnerability. The ZDI has assigned a CVSS rating of 7.5.
AI Analysis
Technical Summary
The Amazon Smart Plug contains a vulnerability in its over-the-air (OTA) update processing component that allows an out-of-bounds write to occur due to insufficient validation of user-supplied data. This flaw can be exploited by network-adjacent attackers without requiring authentication to execute arbitrary code on the device. The vulnerability was reported to Amazon in November 2025 and publicly disclosed in August 2026. The issue is resolved in Amazon Smart Plug version 3.1.212.
Potential Impact
Successful exploitation enables an attacker to execute arbitrary code on the affected Amazon Smart Plug device, potentially compromising confidentiality, integrity, and availability. No authentication is required, increasing the risk of exploitation by nearby attackers. The CVSS score of 7.5 indicates a high severity impact with network attack vector and no privileges required.
Mitigation Recommendations
A vendor-provided fix is available in Amazon Smart Plug version 3.1.212. Users and administrators should update affected devices to this version or later to remediate the vulnerability. No additional mitigation steps are indicated by the vendor advisory.
ZDI-26-559: (Pwn2Own) Amazon Smart Plug OTA Update Process Out-Of-Bounds Write Remote Code Execution Vulnerability
Description
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Amazon Smart Plug. Authentication is not required to exploit this vulnerability. The ZDI has assigned a CVSS rating of 7.5.
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Amazon Smart Plug contains a vulnerability in its over-the-air (OTA) update processing component that allows an out-of-bounds write to occur due to insufficient validation of user-supplied data. This flaw can be exploited by network-adjacent attackers without requiring authentication to execute arbitrary code on the device. The vulnerability was reported to Amazon in November 2025 and publicly disclosed in August 2026. The issue is resolved in Amazon Smart Plug version 3.1.212.
Potential Impact
Successful exploitation enables an attacker to execute arbitrary code on the affected Amazon Smart Plug device, potentially compromising confidentiality, integrity, and availability. No authentication is required, increasing the risk of exploitation by nearby attackers. The CVSS score of 7.5 indicates a high severity impact with network attack vector and no privileges required.
Mitigation Recommendations
A vendor-provided fix is available in Amazon Smart Plug version 3.1.212. Users and administrators should update affected devices to this version or later to remediate the vulnerability. No additional mitigation steps are indicated by the vendor advisory.
Technical Details
- Classification
- {"confidence":0.95,"severitySource":"cvss-text","classifier":"rss-v2"}
- Article Source
- {"url":"http://www.zerodayinitiative.com/advisories/ZDI-26-559/","fetched":true,"fetchedAt":"2026-08-12T20:03:17.524Z","wordCount":191}
Threat ID: 6a7cd317bf8831d5391487bc
Added to database: 08/12/2026, 20:09:59 UTC
Last enriched: 08/12/2026, 20:10:57 UTC
Last updated: 08/12/2026, 23:51:34 UTC
Views: 4
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