Is CVE-2008-0550 actively exploited?

A proof-of-concept exploit is publicly available for CVE-2008-0550, but active exploitation has not been confirmed.

Can CVE-2008-0550 be exploited remotely?

Yes. CVE-2008-0550 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2008-0550?

CVE-2008-0550 has a CVSS score of 10.0 (CRITICAL).

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CRITICALPOC

CVE-2008-0550

CWE-189Published: February 1, 2008· Updated: Jun 16, 2026

10.0

CVSS v3.1

Official Description

Off-by-one error in Steamcast 0.9.75 and earlier allows remote attackers to cause a denial of service (daemon crash) or execute arbitrary code via a certain HTTP request that leads to a buffer overflow, as demonstrated by a long User-Agent header.

NVD Source

Technical Analysis

CVE-2008-0550 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-2008-0550. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.