CVE-2011-2921 in the critical feed json
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 re…
published 2019-11-19 6 y ago modified 2026-06-16 4 mo ago also EUVD-2011-2894
- cvss
- 9.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 83.1%
- EPSS 83.1% chance of exploitation in 30 days, percentile 99.6%
- public exploits
- 2
- Metasploit, Exploit-DB
Summary
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.
Timeline
- First public exploit (Metasploit exploit/linux/local/ktsuss_suid_priv_esc)
- Published
Exploit prediction
83.11% chance of exploitation in the next 30 days, higher than 99.6% of all scored CVEs (FIRST EPSS, 2026-11-09).
Exploits and checks
- Metasploit exploit/linux/local/ktsuss_suid_priv_esc ktsuss suid Privilege Escalation metasploit exploit, excellent rank, 2011-08-13
- EDB-47344 ktsuss 1.4 - suid Privilege Escalation (Metasploit) local, 2019-09-03
- packetstormsecurity.com http://packetstormsecurity.com/files/154307/ktsuss-Suid-Privilege-Escalation.html referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 10.0 | AV:N/AC:L/Au:N/C:C/I:C/A:C |
Affected products
- ktsuss ktsuss
Classification
- Weakness
-
- CWE-273 Improper Check for Dropped Privileges
References
-
packetstormsecurity.com
/files/154307/ktsuss-Suid-Privilege-Escalation.html
exploit, third-party-advisory, vdb-entry
-
security-tracker.debian.org
/tracker/CVE-2011-2921
third-party-advisory
-
access.redhat.com
/security/cve/cve-2011-2921
broken-link, third-party-advisory
Sources
- CVE List CVE-2011-2921
- NVD CVE-2011-2921
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.