HIGH
Heap-based buffer overflow in HydraIRC 0.3.151 allows remote IRC servers to cause a denial of service (application crash) via a long CTCP request message containing '%' (percent) characters
Published Jul 17, 2007
7.8
HIGHCVSS 2.0
EPSS 1.42%
Description
Heap-based buffer overflow in HydraIRC 0.3.151 allows remote IRC servers to cause a denial of service (application crash) via a long CTCP request message containing '%' (percent) characters.
Affected products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
7.8 HIGH NVD
AV:N/AC:L/Au:N/C:N/I:N/A:C
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Complete
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
1.42% 0.01422
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.01422
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.42% (0.01422) | 71.90th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.42% (0.01422) | 69.29th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.36% (0.00365) | 56.36th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.33% (0.00330) | 71.89th | v3 (v2023.03.01) |
| May 20, 2024 | 0.31% (0.00309) | 69.88th | v3 (v2023.03.01) |
| May 17, 2024 | 0.25% (0.00248) | 64.67th | v3 (v2023.03.01) |
| Dec 19, 2023 | 0.25% (0.00248) | 62.65th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.22% (0.00219) | 58.02th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.95% (0.00954) | 36.37th | v2 (v2022.01.01) |
| Sep 2, 2022 | 0.95% (0.00954) | 34.50th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.95% (0.00954) | 32.50th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.95% (0.00954) | 16.28th | v2 (v2022.01.01) |
Weaknesses (0)
No CWE recorded.
References (3)
- http://osvdb.org/38625 vdb-entryx_refsource_OSVDB
- http://www.portcullis-security.com/uplds/advisories/HydraIRC_bof-07_007.txt x_refsource_MISCPatch
- https://exchange.xforce.ibmcloud.com/vulnerabilities/35408 vdb-entryx_refsource_XF
| Link | Providers | Tags |
|---|---|---|
| http://osvdb.org/38625 | vdb-entryx_refsource_OSVDB | |
| http://www.portcullis-security.com/uplds/advisories/HydraIRC_bof-07_007.txt | x_refsource_MISCPatch | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/35408 | vdb-entryx_refsource_XF |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Jul 17, 2007
Updated Aug 7, 2024
Reserved Jul 17, 2007
Link CVE-2007-3837
CISA Vulnrichment
Updated n/a