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CVE-2013-4509

11
FAUCET Score

CVE-2013-4509 describes a vulnerability in IBUS 1.5.4 (and potentially earlier versions) where, in its default configuration with GNOME 3, it fails to obscure password characters during input if IBus.InputPurpose.PASSWORD is not explicitly set. This allows physically proximate attackers to observe user passwords by viewing the lockscreen. The vulnerability has a low CVSS score of 1.9 (AV:L/AC:M/Au:N/C:P/I:N/A:N), indicating local access, medium attack complexity, no authentication required, and a partial impact on confidentiality. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage for this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.5.2CPE matchmatch criteria
cpe:2.3:a:ibus_project:ibus:*:*:*:*:*:*:*:*
1.5.4CPE matchmatch criteria
cpe:2.3:a:ibus_project:ibus:1.5.4:*:*:*:*:*:*:*
13.1CPE matchmatch criteria
cpe:2.3:o:opensuse:opensuse:13.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

1.9LOW

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

Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
Access Vector
LOCAL
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
3.4
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.34%
Probability of exploitation in next 30 days
EPSS Percentile
26.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0034 is in the 46th percentile among its peer group of 747 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 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

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2013-4509Low

ibus: visible password entry flaw

Oct 25, 2013

References

lists.opensuse.org / opensuse-updates/2013-11/msg00036.html
lists.opensuse.org / opensuse-updates/2013-12/msg00024.html
lists.opensuse.org / opensuse-updates/2014-01/msg00045.html
bugzilla.redhat.com / show_bug.cgi
code.google.com / p/mozc/issues/attachmentText
Patch
github.com / ibus/ibus-anthy/commit/6aae0a9f145f536515e268dd6b25aa740a5edfe7
Patch
groups.google.com / forum