CVE-2002-1663

Monkey vulnerability

CVSS

5.0

EPSS

4.0%

EPSS pct

89th

Exploited

No known

The Post_Method function in method.c for Monkey HTTP Daemon before 0.5.1 allows remote attackers to cause a denial of service (crash) via a POST request with an invalid or missing Content-Length header value.

Affected vendor

Monkey Project

Affected product

Monkey

CVSS vector

AV:N/AC:L/Au:N/C:N/I:N/A:P

Weakness type (CWE)

CWE-20 — Improper Input Validation

Published

2002-12-31

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no authentication. Successful exploitation leads to partial impact to availability.

Its EPSS score of 4.0% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 89% of all scored CVEs.

Check your external exposure to CVE-2002-1663

Confirm whether Monkey Project Monkey is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2002-1663.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2002-1663

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2002-1663 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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