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CVE-2011-3628

21
FAUCET Score

CVE-2011-3628 describes an untrusted search path vulnerability in the pam_motd module within libpam-modules on various Ubuntu Linux versions. This flaw allows a local attacker to escalate privileges by manipulating the PATH environment variable to execute malicious commands when the pam_motd module is configured with "session optional pam_motd.so". The vulnerability has a CVSS score of 6.9, indicating a medium attack complexity with high impact on confidentiality, integrity, and availability, but requires local access. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
0.9.7CPE matchmatch criteria
cpe:2.3:a:canonical:libpam-modules:0.9.7:*:*:*:*:*:*:*
1.1.1CPE matchmatch criteria
cpe:2.3:a:canonical:libpam-modules:1.1.1:*:*:*:*:*:*:*
1.1.2CPE matchmatch criteria
cpe:2.3:a:canonical:libpam-modules:1.1.2:*:*:*:*:*:*:*
1.1.3CPE matchmatch criteria
cpe:2.3:a:canonical:libpam-modules:1.1.3:*:*:*:*:*:*:*
8.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:8.04:-:lts:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

6.9MEDIUM

AV:L/AC:M/Au:N/C:C/I:C/A:C

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
LOCAL
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
3.4
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.38%
Probability of exploitation in next 30 days
EPSS Percentile
30.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0038 is in the 49th percentile among its peer group of 1,595 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

ubuntuvendor investigatingvia nvd_reference
View patch

References

bugs.launchpad.net / ubuntu/%2Bsource/pam/%2Bbug/610125
ubuntu.com / usn/USN-1237-1
Vendor Advisory