Is CVE-2023-36659 actively exploited?

No active exploitation of CVE-2023-36659 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2023-36659 be exploited remotely?

Yes. CVE-2023-36659 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2023-36659?

CVE-2023-36659 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2023-36659

CRITICAL

CVE-2023-36659

CWE-120Published: September 15, 2023· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

An issue was discovered in OPSWAT MetaDefender KIOSK 4.6.1.9996. Long inputs were not properly processed, which allows remote attackers to cause a denial of service (loss of communication).

NVD Source

Risk Analysis

OPSWAT MetaDefender KIOSK is vulnerable to a denial of service attack caused by improper handling of long inputs. This critical flaw allows remote attackers to disrupt communication services.

No public exploit is known, and it is not in CISA KEV. The vulnerability is remotely exploitable with low complexity.

Recommended Action

Ensure the system is updated to a version that properly validates input lengths to prevent service disruption.

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-2023-36659 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.