CVE-2009-10006UFO: Alien Invasion <= 2.2.1 IRC Client Buffer Overflow
- 9.3CriticalCVSS base score
- 1.4%Exploitation in 30 daysEPSS · top 27% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- 2Public exploitsMetasploit, Nuclei and Exploit-DB
Description
UFO: Alien Invasion versions up to and including 2.2.1 contain a buffer overflow vulnerability in its built-in IRC client component. When the client connects to an IRC server and receives a crafted numeric reply (specifically a 001 message), the application fails to properly validate the length of the response string. This results in a stack-based buffer overflow, which may corrupt control flow structures and allow arbitrary code execution. The vulnerability is triggered during automatic IRC connection handling and does not require user interaction beyond launching the game.
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. The public collections list 2 Metasploit modules for it. 4 references of the record are tagged as an exploit. CISA's SSVC rates its exploitation: a proof of concept is public.
Show the exploits6
Metasploit modules2 modules
- UFO: Alien Invasion IRC Client Buffer Overflow (Metasploit module) (opens in a new tab)
exploit/osx/misc/ufo_aiRank averagedisclosed 28 Oct 2009
- UFO: Alien Invasion IRC Client Buffer Overflow (Metasploit module) (opens in a new tab)
exploit/windows/misc/ufo_aiRank averagedisclosed 28 Oct 2009
References tagged exploit4 references
- https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/misc/ufo_ai.rb (opens in a new tab)exploit
- https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/osx/misc/ufo_ai.rb (opens in a new tab)exploit
- https://www.exploit-db.com/exploits/16864 (opens in a new tab)exploit
- https://www.exploit-db.com/exploits/14013 (opens in a new tab)exploit
Modules, templates and exploits as listed by the Metasploit Framework (BSD-3-Clause), ProjectDiscovery's Nuclei templates (MIT) and the Exploit Database (GPLv2), read once a day. Where the data comes from
Timeline
ID reserved
By VulnCheck
- 2 days later
· 2 days later
Published
- 9 months later
· 9 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| VulnCheckCNA (assigner) | 4.0 | Critical9.3 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N |
| NVDNVD · Deferred | 4.0 | Critical9.3 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
- EPSS (exploitation in 30 days)
- 1.4% · top 27% of all CVEs (14 Nov 2026)
- CISA SSVC
- Exploitation: poc · Automatable: yes · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.3.
Affected products
UFO: Alien Invasion Project · UFO: Alien Invasion
- affected ≤ 2.2.1
References
References6
- https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/misc/ufo_ai.rb (opens in a new tab)exploit
- https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/osx/misc/ufo_ai.rb (opens in a new tab)exploit
- https://www.exploit-db.com/exploits/16864 (opens in a new tab)exploit
- https://www.exploit-db.com/exploits/14013 (opens in a new tab)exploit
- https://www.moddb.com/news/ufo-alien-invasion-231-released (opens in a new tab)vendor-advisorypatch
- https://www.vulncheck.com/advisories/ufo-alien-invasion-irc-client-buffer-overflow (opens in a new tab)third-party-advisory
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2009-5118 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2009-10006)Record last updated .