CRITICAL
ktsuss versions 1.4 and prior has the uid set to root and does not drop privileges prior to executing user specified commands, which can result in command execution with root privileges
Published Nov 19, 2019
9.8
CRITICALCVSS 3.1
EPSS 83.11%
Description
ktsuss versions 1.4 and prior has the uid set to root and does not drop privileges prior to executing user specified commands, which can result in command execution with root privileges.
Affected products
-
- Version 1.4 and priorStatusaffectedConstraints-
- Version
- ≤ 1.4
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.
9.8 CRITICAL NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
No CVSS v3.0 score for this CVE.
10.0 HIGH NVD
AV:N/AC:L/Au:N/C:C/I:C/A:C
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact Complete
Integrity Impact Complete
Availability Impact Complete
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
83.11% 0.83114
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.83114
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 (23 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 83.11% (0.83114) | 99.67th | v5 (v2026.06.15) |
| Jun 15, 2026 | 82.83% (0.82828) | 99.63th | v5 (v2026.06.15) |
| Apr 21, 2026 | 72.98% (0.72976) | 98.79th | v4 (v2025.03.14) |
| Mar 30, 2025 | 71.59% (0.71594) | 98.64th | v4 (v2025.03.14) |
| Mar 29, 2025 | 72.95% (0.72951) | 98.39th | v4 (v2025.03.14) |
| Mar 17, 2025 | 71.59% (0.71594) | 98.64th | v4 (v2025.03.14) |
| Jan 23, 2025 | 94.85% (0.94848) | 99.47th | v3 (v2023.03.01) |
| Dec 17, 2024 | 96.22% (0.96224) | 99.67th | v3 (v2023.03.01) |
| Nov 30, 2024 | 54.47% (0.54472) | 97.74th | v3 (v2023.03.01) |
| Oct 28, 2024 | 57.87% (0.57867) | 97.80th | v3 (v2023.03.01) |
| Oct 10, 2024 | 55.44% (0.55443) | 97.72th | v3 (v2023.03.01) |
| Sep 8, 2024 | 53.32% (0.53319) | 97.67th | v3 (v2023.03.01) |
| Aug 5, 2024 | 31.16% (0.31157) | 97.00th | v3 (v2023.03.01) |
| Jul 16, 2024 | 24.68% (0.24679) | 96.68th | v3 (v2023.03.01) |
| May 17, 2024 | 26.06% (0.26057) | 96.71th | v3 (v2023.03.01) |
| Apr 1, 2024 | 32.72% (0.32717) | 96.92th | v3 (v2023.03.01) |
| Sep 8, 2023 | 35.80% (0.35803) | 96.61th | v3 (v2023.03.01) |
| Aug 6, 2023 | 30.40% (0.30397) | 96.36th | v3 (v2023.03.01) |
| Jul 19, 2023 | 19.33% (0.19332) | 95.62th | v3 (v2023.03.01) |
| Apr 24, 2023 | 12.27% (0.12268) | 94.53th | v3 (v2023.03.01) |
| Mar 7, 2023 | 10.88% (0.10884) | 94.15th | v3 (v2023.03.01) |
| Mar 6, 2023 | 83.01% (0.83007) | 99.59th | v2 (v2022.01.01) |
| Feb 4, 2022 | 83.01% (0.83007) | 99.50th | v2 (v2022.01.01) |
Weaknesses (1)
References (3)
- http://packetstormsecurity.com/files/154307/ktsuss-Suid-Privilege-Escalation.html x_refsource_MISCExploitThird Party AdvisoryVDB Entry
- https://access.redhat.com/security/cve/cve-2011-2921 x_refsource_MISCBroken LinkThird Party Advisory
- https://security-tracker.debian.org/tracker/CVE-2011-2921 x_refsource_MISCThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| http://packetstormsecurity.com/files/154307/ktsuss-Suid-Privilege-Escalation.html | x_refsource_MISCExploitThird Party AdvisoryVDB Entry | |
| https://access.redhat.com/security/cve/cve-2011-2921 | x_refsource_MISCBroken LinkThird Party Advisory | |
| https://security-tracker.debian.org/tracker/CVE-2011-2921 | x_refsource_MISCThird Party Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner redhat
Published Nov 19, 2019
Updated Aug 6, 2024
Reserved Jul 27, 2011
Link CVE-2011-2921
CISA Vulnrichment
Updated n/a