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CVE-2013-4427

11
FAUCET Score

CVE-2013-4427 describes a vulnerability in pyxtrlock before version 0.2, where improper checking of XCB library function return values for xcb_grab_pointer and xcb_grab_keyboard allows physically proximate attackers to bypass the screen lock and gain keyboard or mouse access. This vulnerability has a low severity CVSS score of 2.1, indicating a local attack vector with low complexity and a potential impact of partial confidentiality. There is no evidence of active exploitation, no known exploit code (Metasploit, Nuclei, ExploitDB), and minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 0.1CPE matchmatch criteria
cpe:2.3:a:leon_weber:pyxtrlock:*:-:*:*:*:*:*:*
0.1CPE matchmatch criteria
cpe:2.3:a:leon_weber:pyxtrlock:0.1:beta:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

2.1LOW

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

Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Exploitability Score
3.9
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.35%
Probability of exploitation in next 30 days
EPSS Percentile
27.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0035 is in the 25th percentile among its peer group of 2,096 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 0.6 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

Remediation records are not available for this CVE.

References

github.com / leonnnn/pyxtrlock/blob/master/CHANGELOG
openwall.com / lists/oss-security/2013/09/25/16
openwall.com / lists/oss-security/2013/10/16/8