What is CVE-2010-2075?

CVE-2010-2075 is a vulnerability in Unrealircd, classified under Improper Input Validation. Published 2010-06-15.

Is CVE-2010-2075 known to be exploited?

65 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Improper input validation in Unrealircd

CVE-2010-2075

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.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2010-06-15 · last modified 2026-06-16.

CVSS v2 metric

CVSS v2 base score 7.5 (High). Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P. This CVE predates CVSS v3 and has no v3 score from NVD.

EPSS exploit prediction

EPSS: 0.835 (99.7th percentile), scored 2026-10-16.

High probability of exploitation in the next 30 days — patch promptly. 100th percentile — 99.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.835 · newest: 0.835 · change: 0.000

Affected products

Unrealircd — versions 3.2.8.1

Weakness classification (CWE)

CWE-20 — Improper Input Validation

Public proof-of-concept exploits

References

www.unrealircd.com/txt/unrealsecadvisory.20100612.txt (Vendor Advisory)
www.vupen.com/english/advisories/2010/1437 (vdb-entry, Vendor Advisory)
security.gentoo.org/glsa/glsa-201006-21.xml (vendor-advisory)
osvdb.org/65445 (vdb-entry)
www.openwall.com/lists/oss-security/2010/06/14/11 (mailing-list)
www.exploit-db.com/exploits/13853 (exploit)
secunia.com/advisories/40169 (third-party-advisory, Vendor Advisory)
seclists.org/fulldisclosure/2010/Jun/277 (mailing-list)
www.securityfocus.com/bid/40820 (Exploit, vdb-entry)
seclists.org/fulldisclosure/2010/Jun/284 (mailing-list)

Frequently asked questions

What is CVE-2010-2075?: CVE-2010-2075 is a vulnerability in Unrealircd, classified under Improper Input Validation. Published 2010-06-15.
Is CVE-2010-2075 known to be exploited?: 65 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.