exit.c in Linux kernel 2.6-test9-CVS, as stored on kernel.bkbits.net, was modified to contain a backdoor, which could allow local users to elevate their privileges by passing __WCLONE|__WALL to the sys_wait4 function
Published May 10, 2005
7.2
HIGHCVSS 2.0
EPSS 0.48%
Description
exit.c in Linux kernel 2.6-test9-CVS, as stored on kernel.bkbits.net, was modified to contain a backdoor, which could allow local users to elevate their privileges by passing __WCLONE|__WALL to the sys_wait4 function.
Affected products
No data.
- 2.6_test9_cvs
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.
No CVSS v3.0 score for this CVE.
AV:L/AC:L/Au:N/C:C/I:C/A:C
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
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.48% (0.00485) | 39.50th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.48% (0.00481) | 37.55th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.07% (0.00065) | 17.34th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00042) | 5.07th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00042) | 5.63th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.95% (0.00950) | 32.28th | v2 (v2022.01.01) |
| Sep 10, 2022 | 0.95% (0.00950) | 30.63th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.95% (0.00950) | 28.61th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.95% (0.00950) | 13.46th | v2 (v2022.01.01) |
No CWE recorded.
References (4)
- http://www.securityfocus.com/bid/8987 vdb-entryx_refsource_BID
- http://www.ussg.iu.edu/hypermail/linux/kernel/0311.0/0621.html mailing-listx_refsource_MLIST
- http://www.ussg.iu.edu/hypermail/linux/kernel/0311.0/0627.html mailing-listx_refsource_MLISTExploit
- http://www.ussg.iu.edu/hypermail/linux/kernel/0311.0/0630.html mailing-listx_refsource_MLISTExploit
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/8987 | vdb-entryx_refsource_BID | |
| http://www.ussg.iu.edu/hypermail/linux/kernel/0311.0/0621.html | mailing-listx_refsource_MLIST | |
| http://www.ussg.iu.edu/hypermail/linux/kernel/0311.0/0627.html | mailing-listx_refsource_MLISTExploit | |
| http://www.ussg.iu.edu/hypermail/linux/kernel/0311.0/0630.html | mailing-listx_refsource_MLISTExploit |
Change history (0)
No recorded changes yet.