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CVE-2026-123389

Quality Windows Audio/Video Experience (QWAVE) service Elevation of Privilege Vulnerability

Use after free in Quality Windows Audio/Video Experience (QWAVE) service allows an authorized attacker to elevate privileges locally.

CVSS 3.1 · 7 High EPSS < 1% KEV · Not listed
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CVE-2026-125136

Windows Network Connected Devices Auto-Setup Service Remote Code Execution Vulnerability

Heap-based buffer overflow in Windows Network Connected Devices Auto-Setup Service allows an unauthorized attacker to execute code over an adjacent network.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
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CVE-2026-126135

SMTP and POP3 response injection when using STARTTLS

If an attacker was able to perform a man-in-the-middle attack on an SMTP or POP3 server connection using STARTTLS, the attacker could inject server responses before the TLS handshake completed. Thunderbird would process these responses after the handshake, as if they had been received from the server over the encrypted connection. This could be used to make Thunderbird report a different outcome for sending or fetching mail, and to show attacker-controlled text in error messages. The encrypted connection itself was not compromised, and credentials were not exposed. Connections using SSL/TLS instead of STARTTLS were not affected. This vulnerability was fixed in Thunderbird 160 and Thunderbird 153.7.

CVSS 3.1 · 6.1 Medium EPSS < 1% KEV · Not listed
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