irssi: Null pointer dereference while receiving a DCC message without source nick/host
Published Jun 7, 2017
7.5
HIGHCVSS 3.0
EPSS 3.25%
Description
In Irssi before 1.0.3, when receiving a DCC message without source nick/host, it attempts to dereference a NULL pointer. Thus, remote IRC servers can cause a crash.
Affected products
No data.
Configuration 2
- 8.0
- 9.0
No data.
Red Hat Enterprise Linux 6
irssi
Will not fix
Red Hat Enterprise Linux 7
irssi
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | irssi | Will not fix | n/a |
| Red Hat Enterprise Linux 7 | irssi | Will not fix | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
Red Hat Product Security has rated this issue as having Low security impact. This issue is not currently planned to be addressed in future updates. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
1 other source (Red Hat) ▾
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
AV:N/AC:L/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (16 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 3.25% (0.03248) | 87.89th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.25% (0.03248) | 86.66th | v5 (v2026.06.15) |
| Nov 21, 2025 | 1.36% (0.01363) | 79.61th | v4 (v2025.03.14) |
| Nov 18, 2025 | 4.03% (0.04029) | 87.35th | v4 (v2025.03.14) |
| Jul 20, 2024 | 1.11% (0.01115) | 84.71th | v3 (v2023.03.01) |
| Apr 17, 2024 | 1.11% (0.01115) | 84.36th | v3 (v2023.03.01) |
| Mar 22, 2023 | 1.11% (0.01115) | 82.36th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.57% (0.01574) | 85.22th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.02% (0.01018) | 40.69th | v2 (v2022.01.01) |
| Sep 10, 2022 | 1.02% (0.01018) | 38.88th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.02% (0.01018) | 36.86th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.02% (0.01018) | 19.50th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.25% (0.01247) | 30.57th | v1 |
| Jan 6, 2022 | 1.25% (0.01247) | 29.93th | v1 |
| Sep 1, 2021 | 1.25% (0.01247) | 68.62th | v1 |
| Apr 14, 2021 | 1.25% (0.01247) | 0.00th | v1 |
References (9)
- http://openwall.com/lists/oss-security/2017/06/06/4 x_refsource_CONFIRMMailing ListPatchThird Party Advisory
- http://www.debian.org/security/2017/dsa-3885 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- http://www.securityfocus.com/bid/99015 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1038621 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- https://access.redhat.com/security/cve/CVE-2017-9468 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1459456 Issue Tracking
- https://irssi.org/security/irssi_sa_2017_06.txt x_refsource_CONFIRMPatchVendor Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2017-9468
- https://www.cve.org/CVERecord?id=CVE-2017-9468
| Link | Providers | Tags |
|---|---|---|
| http://openwall.com/lists/oss-security/2017/06/06/4 | x_refsource_CONFIRMMailing ListPatchThird Party Advisory | |
| http://www.debian.org/security/2017/dsa-3885 | vendor-advisoryx_refsource_DEBIANThird Party Advisory | |
| http://www.securityfocus.com/bid/99015 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| http://www.securitytracker.com/id/1038621 | vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry | |
| https://access.redhat.com/security/cve/CVE-2017-9468 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1459456 | Issue Tracking | |
| https://irssi.org/security/irssi_sa_2017_06.txt | x_refsource_CONFIRMPatchVendor Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2017-9468 | ||
| https://www.cve.org/CVERecord?id=CVE-2017-9468 |
Change history (0)
No recorded changes yet.