CVE-2026-93393
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
Heap overflow via oversized decrypted TLS record sequence in Windows Secure Channel stream
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.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
C Driver
- Vendor
- MongoDB Inc.
- Product
- C Driver
- Platforms
- Windows
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 2.4.0 | affected | semver | Unavailable | Unavailable | None listed |
| 2.3.0 | affected | semver | Unavailable | 2.3.3 | None listed |
| 2.2.0 | affected | semver | Unavailable | 2.2.4 | None listed |
| 2.1.0 | affected | semver | Unavailable | 2.1.2 | None listed |
| 2.0.0 | affected | semver | Unavailable | 2.0.2 | None listed |
| 1.30.0 | affected | semver | Unavailable | 1.30.8 | None listed |
| 1.29.0 | affected | semver | Unavailable | 1.29.2 | None listed |
| 1.28.0 | affected | semver | Unavailable | 1.28.1 | None listed |
| 1.27.0 | affected | semver | Unavailable | 1.27.6 | None listed |
| 1.26.0 | affected | semver | Unavailable | 1.26.2 | None listed |
| 1.25.0 | affected | semver | Unavailable | 1.25.4 | None listed |
| 1.24.0 | affected | semver | Unavailable | 1.24.4 | None listed |