CVE-2010-2075

Original summary

Normalized public record · Updated Nov 3, 2026

UnrealIRCd 3.2.8.1, as distributed on certain mirror sites from November 2009 through June 2010, contains an externally introduced modification (Trojan Horse) in the DEBUG3_DOLOG_SYSTEM macro, which allows remote attackers to execute arbitrary commands.

Publisher and source text is retained separately from QFinch interpretation.

Affected products

Matching a version is only one part of assessing exposure. QFinch has not assessed your environment on this public page.

Remediation

Apply the vendor-supported fixed release or mitigation, then verify the affected component is no longer reachable.

1. Confirm the affected product and reachable code path exist in your environment.
2. Apply the vendor-supported patch or mitigation from the primary advisory.
3. Rescan the exact deployed revision and retain verification evidence.

Evidence coverage

SSVC priority

HIGH

Confidence

Not available

Aliases

None reported

Scores appear only when corresponding evidence exists. Missing data is never interpreted as zero risk.

Sources and record history

1. www.unrealircd.com ↗
2. ADV-2010-1437 ↗
3. GLSA-201006-21 ↗
4. 65445 ↗
5. [oss-security] 20100614 Re: CVE request: UnrealIRCd 3.2.8.1 source code contained a backdoor allowing for remote command execution ↗
6. 13853 ↗
7. 40169 ↗
8. 20100612 Fw: [irc-security] UnrealIRCd 3.2.8.1 backdoored on official ftp and site ↗
9. 40820 ↗
10. 20100612 Re: Fw: [irc-security] UnrealIRCd 3.2.8.1 backdoored on official ftp and site ↗

Record history

Published Jun 15, 2010 · Last refreshed Nov 3, 2026