OCTOBER 12, 2026
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Case File

CVE-2026-93393

HIGH · CVSS 8.1 EPSS 0.47%

Source: NVD + CISA KEV + EPSS · Published 2026-09-17 · Last synced 2026-10-12

CyberRota Analysis

AI-Generated

A heap-based buffer overflow vulnerability in the TLS transport layer of the MongoDB C Driver on Windows allows remote attackers to exploit the driver by sending malicious data during encrypted traffic processing, bypassing authentication requirements. This could result in memory corruption, potential disclosure of sensitive information, or termination of the client process. Organizations using MongoDB on Windows should prioritize patching this vulnerability to mitigate the risk of exploitation.

CVE
CVE-2026-93393
Severity
HIGH
CVSS
8.1
EPSS
0.47%
Windows MongoDB

Original NVD Description

A heap-based buffer overflow exists in the TLS transport layer of the MongoDB C Driver when built with the Windows platform TLS backend. A remote endpoint that the client connects to can cause the driver to write uncontrolled data outside the bounds of a heap allocation while processing incoming encrypted traffic after the TLS handshake completes. No authentication or user interaction is required, because the affected processing occurs before any application-level authentication completes. Triggering this issue may lead to memory corruption in the client process, disclosure of adjacent heap memory, or termination of the process.

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