CVE-2011-4409 json
The Ubuntu One Client for Ubuntu 10.04 LTS, 11.04, 11.10, and 12.04 LTS does not properly validate SSL certificates, which allows remote at…
published 2012-06-16 14 y ago modified 2026-06-16 4 mo ago also EUVD-2011-4338
- cvss
- 7.5
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.7%
- EPSS 1.7% chance of exploitation in 30 days, percentile 77%
- public exploits
- 0
- none known
Summary
The Ubuntu One Client for Ubuntu 10.04 LTS, 11.04, 11.10, and 12.04 LTS does not properly validate SSL certificates, which allows remote attackers to spoof a server and modify or read sensitive information via a man-in-the-middle (MITM) attack.
Exploit prediction
1.74% chance of exploitation in the next 30 days, higher than 77% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
Classification
- Weakness
-
- CWE-20 Improper Input Validation
References
-
ubuntu.com
/usn/usn-1465-3
vendor-advisory
-
ubuntu.com
/usn/usn-1465-1
vendor-advisory
-
ubuntu.com
/usn/usn-1465-2
vendor-advisory
-
secunia.com
/advisories/49442
third-party-advisory, vendor-advisory
-
osvdb.org
/82748
vdb-entry
-
exchange.xforce.ibmcloud.com
/vulnerabilities/76113
vdb-entry
-
securityfocus.com
/bid/53828
vdb-entry
Sources
- CVE List CVE-2011-4409
- NVD CVE-2011-4409
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.