MEDIUM
The uipc system calls (uipc_syscalls.c) in OpenBSD 2.9 and 3.0 provide user mode return instead of versus rval kernel mode values to the fdrelease function, which allows local users to cause a denial of service and trigger a null dereference
Published Jul 14, 2005
5.5
MEDIUMCVSS 3.1
EPSS 1.48%
Description
The uipc system calls (uipc_syscalls.c) in OpenBSD 2.9 and 3.0 provide user mode return instead of versus rval kernel mode values to the fdrelease function, which allows local users to cause a denial of service and trigger a null dereference.
Affected products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
5.5 MEDIUM NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact High
No CVSS v3.0 score for this CVE.
2.1 LOW NVD
AV:L/AC:L/Au:N/C:N/I:N/A:P
Access Vector Local
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.
1.48% 0.01482
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.01482
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 | 1.48% (0.01482) | 73.02th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.48% (0.01482) | 70.49th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.15% (0.00152) | 33.35th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00043) | 11.52th | v3 (v2023.03.01) |
| May 22, 2024 | 0.06% (0.00063) | 27.07th | v3 (v2023.03.01) |
| Feb 17, 2024 | 0.06% (0.00063) | 25.03th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.04% (0.00045) | 12.42th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00043) | 7.57th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.76% (0.01761) | 76.53th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.76% (0.01761) | 76.48th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.76% (0.01761) | 74.44th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.76% (0.01761) | 53.69th | v2 (v2022.01.01) |
Weaknesses (1)
References (3)
- http://archives.neohapsis.com/archives/bugtraq/2001-12/0014.html mailing-listx_refsource_BUGTRAQBroken LinkExploit
- http://monkey.org/openbsd/archive/tech/0112/msg00015.html mailing-listx_refsource_MLISTBroken LinkExploit
- http://www.iss.net/security_center/static/7690.php vdb-entryx_refsource_XFBroken Link
| Link | Providers | Tags |
|---|---|---|
| http://archives.neohapsis.com/archives/bugtraq/2001-12/0014.html | mailing-listx_refsource_BUGTRAQBroken LinkExploit | |
| http://monkey.org/openbsd/archive/tech/0112/msg00015.html | mailing-listx_refsource_MLISTBroken LinkExploit | |
| http://www.iss.net/security_center/static/7690.php | vdb-entryx_refsource_XFBroken Link |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Jul 14, 2005
Updated Sep 16, 2024
Reserved Jul 14, 2005
Link CVE-2001-1559
CISA Vulnrichment
Updated n/a