Is CVE-2023-45199 actively exploited?

No active exploitation of CVE-2023-45199 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2023-45199 be exploited remotely?

Yes. CVE-2023-45199 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2023-45199?

CVE-2023-45199 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2023-45199

CWE-120Published: October 7, 2023· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

Mbed TLS 3.2.x through 3.4.x before 3.5 has a Buffer Overflow that can lead to remote Code execution.

NVD Source

Risk Analysis

Mbed TLS versions 3.2.x through 3.4.x contain a buffer overflow vulnerability that can lead to remote code execution. Given the critical nature of this library in secure communications, this poses a high risk to affected systems.

No public exploit is known, and the vulnerability is not in the CISA KEV catalog.

Recommended Action

Upgrade Mbed TLS to version 3.5 or later.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2023-45199 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.