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CVE-2009-20007

45
FAUCET Score

CVE-2009-20007 describes a critical stack-based buffer overflow in Talkative IRC v0.4.4.16, allowing unauthenticated remote attackers to achieve arbitrary code execution by sending specially crafted, overly long response strings. This vulnerability carries a CVSS score of 9.3 (Critical) due to its network-based attack vector, low complexity, and high impact on confidentiality, integrity, and availability. While not listed in CISA's KEV catalog, a Metasploit module exists for this exploit, and it has garnered significant community discussion, indicating awareness and potential for exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
TalkativeTalkative IRC
>= 0, <= 0.4.4.16CNA affecteddefault unaffected

CVSS Data

CVSS version used by this source: 4.0

9.3CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
VS Confidentiality
HIGH
VS Integrity
HIGH
VS Availability
HIGH
SS Confidentiality
NONE
SS Integrity
NONE
SS Availability
NONE
Exploit Maturity
NOT_DEFINED
CvssVersion
4.0

Exploit Intelligence

EPSS Score
1.70%
Probability of exploitation in next 30 days
EPSS Percentile
74.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
Metasploit: Talkative IRC v0.4.4.16 Response Buffer Overflow · Mar 17, 2009
This CVE's current EPSS score of 0.0169 is in the 63rd percentile among its peer group of 36,835 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

raw.githubusercontent.com / rapid7/metasploit-framework/master/modules/exploits/windows/misc/talkative_response.rb
web.archive.org / web/20090116203306/http://www.talkative-irc.com
exploit-db.com / exploits/16459
exploit-db.com / exploits/8227
vulncheck.com / advisories/talkative-irc-response-buffer-overflow
zeroscience.mk / en/vulnerabilities/ZSL-2009-4909.php