Talkative IRC v0.4.4.16 Response Buffer Overflow
Published Sep 16, 2025
9.3
CRITICALCVSS 4.0
EPSS 1.40%
Description
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.
Affected products
-
- Version -StatusaffectedConstraints<=0.4.4.16
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Talkative | Talkative IRC | unaffected |
|
No data.
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
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
1 other source (NVD) ▾
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
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
PoCAutomatable
YesTechnical Impact
TotalDecision
n/aAssessed Sep 16, 2025 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2025–2026- EPSS v4
- EPSS v5
Percentile over time
- EPSS v4
- EPSS v5
Table of values (8 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.40% (0.01398) | 71.44th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.68% (0.01681) | 73.87th | v5 (v2026.06.15) |
| May 22, 2026 | 62.26% (0.62262) | 98.38th | v4 (v2025.03.14) |
| Feb 12, 2026 | 60.50% (0.60502) | 98.23th | v4 (v2025.03.14) |
| Jan 16, 2026 | 68.47% (0.68469) | 98.55th | v4 (v2025.03.14) |
| Oct 18, 2025 | 65.18% (0.65175) | 98.38th | v4 (v2025.03.14) |
| Oct 8, 2025 | 63.65% (0.63652) | 98.31th | v4 (v2025.03.14) |
| Sep 17, 2025 | 0.16% (0.00160) | 37.50th | v4 (v2025.03.14) |
References (6)
- https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/misc/talkative_response.rb exploit
- https://web.archive.org/web/20090116203306/http://www.talkative-irc.com/ product
- https://www.exploit-db.com/exploits/16459 exploit
- https://www.exploit-db.com/exploits/8227 exploit
- https://www.vulncheck.com/advisories/talkative-irc-response-buffer-overflow third-party-advisory
- https://www.zeroscience.mk/en/vulnerabilities/ZSL-2009-4909.php exploittechnical-description
Change history (0)
No recorded changes yet.