CVE-2013-4427
CVE-2013-4427 is a low-severity vulnerability in Leon Weber Pyxtrlock with a CVSS 2.0 base score of 2.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.
Key facts
- Severity: Low (CVSS 2.0 base score 2.1)
- EPSS exploit prediction: 0% (27th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-20
- Affected product: Leon Weber Pyxtrlock
- Published:
- Last modified:
Description
pyxtrlock before 0.2 does not properly check the return values of the (1) xcb_grab_pointer and (2) xcb_grab_keyboard XCB library functions, which allows physically proximate attackers to gain access to the keyboard or mouse without unlocking the screen via unspecified vectors.
Frequently asked questions
- What is CVE-2013-4427?
- pyxtrlock before 0.2 does not properly check the return values of the (1) xcb_grab_pointer and (2) xcb_grab_keyboard XCB library functions, which allows physically proximate attackers to gain access to the keyboard or mouse without unlocking the screen via unspecified vectors.
- How severe is CVE-2013-4427?
- CVE-2013-4427 has a CVSS 2.0 base score of 2.1, rated low severity.
- Is CVE-2013-4427 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2013-4427?
- CVE-2013-4427 primarily affects Leon Weber Pyxtrlock. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2013-4427?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2013-4427 published?
- CVE-2013-4427 was published on 2014-05-19 and last updated on 2026-06-16.
References
- http://www.openwall.com/lists/oss-security/2013/09/25/16
- http://www.openwall.com/lists/oss-security/2013/10/16/8
- https://github.com/leonnnn/pyxtrlock/blob/master/CHANGELOG
Affected products (2)
- cpe:2.3:a:leon_weber:pyxtrlock:*:-:*:*:*:*:*:*
- cpe:2.3:a:leon_weber:pyxtrlock:0.1:beta:*:*:*:*:*:*
More vulnerabilities in Leon Weber Pyxtrlock
- CVE-2013-4426 — Low (CVSS 3.6): pyxtrlock before 0.1 uses an incorrect variable name, which allows physically proximate attackers to bypass the lock…
All CVEs affecting Leon Weber Pyxtrlock →
Other CWE-20 (Improper Input Validation) vulnerabilities
- CVE-2026-48316 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
- CVE-2026-48281 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
- CVE-2026-48277 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
- CVE-2026-48055 — Critical (CVSS 10.0): Streambert is a cross-platform Electron Desktop App to stream and download any video media. In versions 2.4.0 and…
- CVE-2026-34910 — Critical (CVSS 10.0): A malicious actor with access to the network could exploit an Improper Input Validation vulnerability found in UniFi OS…
- CVE-2026-33587 — Critical (CVSS 10.0): Lack of user input sanitisation in Open Notebook v1.8.3 allows the application user to execute Python code (and…
Browse all CWE-20 (Improper Input Validation) vulnerabilities →