NetHack Call command buffer overflow
Published Feb 17, 2023
5.5
MEDIUMCVSS 3.1
EPSS 0.24%
Description
NetHack is a single player dungeon exploration game. Starting with version 3.6.2 and prior to version 3.6.7, illegal input to the "C" (call) command can cause a buffer overflow and crash the NetHack process. This vulnerability may be a security issue for systems that have NetHack installed suid/sgid and for shared systems. For all systems, it may result in a process crash. This issue is resolved in NetHack 3.6.7. There are no known workarounds.
Affected products
-
- Version >= 3.6.2, < 3.6.7StatusaffectedConstraints-
- Version
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.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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
NoneAutomatable
NoTechnical Impact
PartialDecision
n/aAssessed Mar 10, 2025 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
Score over time
2023–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- 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 2, 2026 | 0.24% (0.00235) | 13.15th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.24% (0.00235) | 14.23th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.04% (0.00045) | 10.96th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00044) | 14.58th | v3 (v2023.03.01) |
| Jun 13, 2024 | 0.04% (0.00043) | 8.98th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00043) | 6.97th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Feb 18, 2023 | 0.89% (0.00885) | 27.67th | v2 (v2022.01.01) |
References (2)
- https://github.com/NetHack/NetHack/security/advisories/GHSA-2cqv-5w4v-mgch x_refsource_CONFIRMVendor Advisory
- https://nethack.org/security/CVE-2023-24809.html x_refsource_MISCVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://github.com/NetHack/NetHack/security/advisories/GHSA-2cqv-5w4v-mgch | x_refsource_CONFIRMVendor Advisory | |
| https://nethack.org/security/CVE-2023-24809.html | x_refsource_MISCVendor Advisory |
Change history (0)
No recorded changes yet.