CVE-2010-2075
HighPublic exploitUnrealIRCd 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.
Published Jun 15, 2010 · Updated Apr 28, 2026
Key Facts
Patch immediately- CVE-2010-2075 is a high-severity vulnerability (CVSS 7.5 v2) affecting Unrealircd.
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 84% probability of exploitation in the next 30 days.
- No fixed version is listed yet; check the vendor advisory for mitigations.
- Brandefense priority: patch immediately, because it is very likely to be exploited soon.
CVSS v2
7.5
AV:N/AC:L/Au:N/C:P/I:P/A:P
EPSS (30-day exploit likelihood)
84%
Higher than 99.6% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2010-2075 brief as a PDF
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Description
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.
Affected Products
1 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| UnrealircdUnrealircd | 3.2.8.1 | n/a |
Timeline
Publicly disclosed
Jun 15, 2010
Last updated
Apr 28, 2026
Weakness Type
- CWE-20 Improper Input Validation
References
- advisory40169
- advisoryhttp://www.unrealircd.com/txt/unrealsecadvisory.20100612.txt
- advisoryADV-2010-1437
- exploitMSF unreal_ircd_3281_backdoor.rb
- exploitExploitDB-13853
FAQ
Common Questions.
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.
Affected: Unrealircd versions 3.2.8.1. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.
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