CVE-2026-38571: n/a
Cleartext storage and exposure of WPA2 credentials, and missing authentication on the rr/wr memory read/write commands, in the unauthenticated UART debug console of the Tenda N300 F3 (V603) allow a physically proximate attacker to obtain stored WPA2 credentials in cleartext and to read or write arbitrary memory via the serial console.
AI Analysis
Technical Summary
CVE-2026-38571 describes a vulnerability in the Tenda N300 F3 (V603) router where the UART debug console is unauthenticated and exposes WPA2 credentials in cleartext. Additionally, the rr/wr memory read/write commands on this console lack authentication, enabling an attacker with physical proximity and access to the serial console to obtain sensitive credentials and manipulate arbitrary memory contents.
Potential Impact
An attacker with physical access to the device's UART debug console can retrieve WPA2 credentials in cleartext, compromising wireless network security. Furthermore, the attacker can read or write arbitrary memory, potentially leading to further device compromise or persistent control. This vulnerability compromises confidentiality and integrity of the device and network.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict physical access to the device and disable or secure the UART debug console if possible.
CVE-2026-38571: n/a
Description
Cleartext storage and exposure of WPA2 credentials, and missing authentication on the rr/wr memory read/write commands, in the unauthenticated UART debug console of the Tenda N300 F3 (V603) allow a physically proximate attacker to obtain stored WPA2 credentials in cleartext and to read or write arbitrary memory via the serial console.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-38571 describes a vulnerability in the Tenda N300 F3 (V603) router where the UART debug console is unauthenticated and exposes WPA2 credentials in cleartext. Additionally, the rr/wr memory read/write commands on this console lack authentication, enabling an attacker with physical proximity and access to the serial console to obtain sensitive credentials and manipulate arbitrary memory contents.
Potential Impact
An attacker with physical access to the device's UART debug console can retrieve WPA2 credentials in cleartext, compromising wireless network security. Furthermore, the attacker can read or write arbitrary memory, potentially leading to further device compromise or persistent control. This vulnerability compromises confidentiality and integrity of the device and network.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict physical access to the device and disable or secure the UART debug console if possible.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mitre
- Date Reserved
- 2026-04-06T00:00:00.000Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a3eed5627e9c79719f4052c
Added to database: 06/26/2026, 21:21:26 UTC
Last enriched: 06/26/2026, 21:36:40 UTC
Last updated: 06/27/2026, 03:38:56 UTC
Views: 7
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