HIGH
Stack-based buffer overflow in the inbound_cap_ls function in common/inbound.c in HexChat 2.10.2 allows remote IRC servers to cause a denial of service (crash) via a large number of options in a CAP LS message
Published Jan 18, 2017
7.5
HIGHCVSS 3.0
EPSS 34.89%
Description
Stack-based buffer overflow in the inbound_cap_ls function in common/inbound.c in HexChat 2.10.2 allows remote IRC servers to cause a denial of service (crash) via a large number of options in a CAP LS message.
Affected products
No data.
- 2.10.2
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
7.5 HIGH NVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact High
5.0 MEDIUM NVD
AV:N/AC:L/Au:N/C:N/I:N/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
34.89% 0.34894
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.34894
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 (29 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 34.89% (0.34894) | 98.39th | v5 (v2026.06.15) |
| Sep 22, 2026 | 34.89% (0.34894) | 98.36th | v5 (v2026.06.15) |
| Sep 21, 2026 | 27.16% (0.27157) | 98.01th | v5 (v2026.06.15) |
| Sep 6, 2026 | 34.89% (0.34894) | 98.32th | v5 (v2026.06.15) |
| Sep 5, 2026 | 27.16% (0.27157) | 97.97th | v5 (v2026.06.15) |
| Aug 30, 2026 | 34.89% (0.34894) | 98.31th | v5 (v2026.06.15) |
| Aug 28, 2026 | 27.16% (0.27157) | 97.95th | v5 (v2026.06.15) |
| Aug 24, 2026 | 34.89% (0.34894) | 98.31th | v5 (v2026.06.15) |
| Aug 23, 2026 | 27.16% (0.27157) | 97.95th | v5 (v2026.06.15) |
| Jun 15, 2026 | 34.65% (0.34652) | 98.21th | v5 (v2026.06.15) |
| May 22, 2026 | 13.34% (0.13341) | 94.27th | v4 (v2025.03.14) |
| Apr 4, 2026 | 14.42% (0.14419) | 94.41th | v4 (v2025.03.14) |
| Mar 5, 2026 | 11.15% (0.11151) | 93.35th | v4 (v2025.03.14) |
| Jan 21, 2026 | 9.01% (0.09005) | 92.38th | v4 (v2025.03.14) |
| Nov 13, 2025 | 14.79% (0.14794) | 94.23th | v4 (v2025.03.14) |
| Aug 25, 2025 | 16.59% (0.16586) | 94.65th | v4 (v2025.03.14) |
| Mar 30, 2025 | 17.85% (0.17851) | 94.61th | v4 (v2025.03.14) |
| Mar 29, 2025 | 21.50% (0.21498) | 93.01th | v4 (v2025.03.14) |
| Mar 28, 2025 | 17.85% (0.17851) | 94.61th | v4 (v2025.03.14) |
| Mar 27, 2025 | 21.50% (0.21498) | 94.90th | v4 (v2025.03.14) |
| Mar 20, 2025 | 17.85% (0.17851) | 94.65th | v4 (v2025.03.14) |
| Mar 19, 2025 | 21.50% (0.21498) | 95.00th | v4 (v2025.03.14) |
| Mar 17, 2025 | 17.85% (0.17851) | 94.63th | v4 (v2025.03.14) |
| Dec 12, 2024 | 1.29% (0.01288) | 86.37th | v3 (v2023.03.01) |
| Jun 27, 2024 | 1.82% (0.01816) | 88.29th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.82% (0.01816) | 86.29th | v3 (v2023.03.01) |
| Mar 6, 2023 | 15.12% (0.15118) | 95.91th | v2 (v2022.01.01) |
| Apr 1, 2022 | 15.12% (0.15118) | 95.55th | v2 (v2022.01.01) |
| Feb 4, 2022 | 15.12% (0.15118) | 91.33th | v2 (v2022.01.01) |
Weaknesses (1)
References (3)
- http://packetstormsecurity.com/files/136563/Hexchat-IRC-Client-2.11.0-CAP-LS-Handling-Buffer-Overflow.html x_refsource_MISCExploitThird Party AdvisoryVDB Entry
- http://www.securityfocus.com/bid/95920 vdb-entryx_refsource_BID
- https://www.exploit-db.com/exploits/39657/ exploitx_refsource_EXPLOIT-DBThird Party AdvisoryVDB Entry
| Link | Providers | Tags |
|---|---|---|
| http://packetstormsecurity.com/files/136563/Hexchat-IRC-Client-2.11.0-CAP-LS-Handling-Buffer-Overflow.html | x_refsource_MISCExploitThird Party AdvisoryVDB Entry | |
| http://www.securityfocus.com/bid/95920 | vdb-entryx_refsource_BID | |
| https://www.exploit-db.com/exploits/39657/ | exploitx_refsource_EXPLOIT-DBThird Party AdvisoryVDB Entry |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Jan 18, 2017
Updated Aug 5, 2024
Reserved Feb 7, 2016
Link CVE-2016-2233
CISA Vulnrichment
Updated n/a