PT-2026-95110 · Mongodb · Mongodb C Driver

CVE-2026-93393

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Published

2026-09-17

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Updated

2026-09-21

CVSS v4.0

9.2

Critical

VectorAV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Name of the Vulnerable Software and Affected Versions MongoDB C Driver (affected versions not specified)
Description A heap-based buffer overflow occurs in the TLS transport layer of the MongoDB C Driver when using the Windows platform TLS backend. A remote endpoint can cause the driver to write uncontrolled data outside the bounds of a heap allocation while processing incoming encrypted traffic after the TLS handshake. This issue occurs before application-level authentication, requiring no user interaction or authentication. Potential impacts include memory corruption in the client process, disclosure of adjacent heap memory, or process termination.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Memory Corruption

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Weakness Enumeration

Related Identifiers

CVE-2026-93393

Affected Products

Mongodb C Driver