Is CVE-2009-4490 actively exploited?

A proof-of-concept exploit is publicly available for CVE-2009-4490, but active exploitation has not been confirmed.

Can CVE-2009-4490 be exploited remotely?

Yes. CVE-2009-4490 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2009-4490?

CVE-2009-4490 has a CVSS score of 5.0 (MEDIUM).

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MEDIUMPOC

CVE-2009-4490

CWE-20Published: January 13, 2010· Updated: Jun 16, 2026

5.0

CVSS v3.1

Official Description

mini_httpd 1.19 writes data to a log file without sanitizing non-printable characters, which might allow remote attackers to modify a window's title, or possibly execute arbitrary commands or overwrite files, via an HTTP request containing an escape sequence for a terminal emulator.

NVD Source

Technical Analysis

CVE-2009-4490 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A proof-of-concept (PoC) exploit exists for CVE-2009-4490. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.