9.3crit

CVE-2009-20007

Talkative IRC v0.4.4.16 Response Buffer Overflow

Published 13 mo ago · modified 36 d ago · JSON

CVSS
9.3
v4.0 · CNA
CISA KEV
No
not known exploited
EPSS
2.4%
percentile 84%
Public exploits
0
none known

Summary

Talkative IRC v0.4.4.16 is vulnerable to a stack-based buffer overflow when processing specially crafted response strings sent to a connected client. An attacker can exploit this flaw by sending an overly long message that overflows a fixed-length buffer, potentially leading to arbitrary code execution in the context of the vulnerable process. This vulnerability is exploitable remotely and does not require authentication.

CISA SSVC assessment

Exploitation
Proof of concept public
Automatable
yes
Technical impact
total
Assessed
13 mo ago

Exploit prediction (EPSS)

2.43% probability of exploitation in the next 30 days, higher than 84% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
CNA4.09.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CNA4.09.3CVSS: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

Affected products

  • Talkative Talkative IRC

Classification

Weakness
  • CWE-121 Stack-based Buffer Overflow

References

Sources

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.