Is CVE-2006-4342 being actively exploited?

CVE-2006-4342 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2006-4342?

CVE-2006-4342 has a CVSS 3.1 base score of 5.5 (MEDIUM).

CVE-2006-4342

MEDIUM · CVSS 5.5EPSS 0.4%EU EUVD

The kernel in Red Hat Enterprise Linux 3, when running on SMP systems, allows local users to cause a denial of service (deadlock) by running the shmat function on an shm at the same time that shmctl is removing that shm (IPC_RMID), which prevents a spinlock from being unlocked.

Key facts

CVSS score: 5.5 (v3.1)
Severity: MEDIUM
CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): CWE-667
EPSS score: 0.4% (31th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2006-4330)
Published: October 17, 2006
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2006-4330 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.

View on the EU Vulnerability Database

Affected products

redhat / enterprise linux

Certified products that may be affected

2 FIPS 140 or Common Criteria certified products, from automated matching by sec-certs.org.

Red Hat Enterprise Linux WS, Version 3 Update 2 - Red Hat, Inc. - Common Criteria BSI-DSZ-CC-0259-2004 - archived
Red Hat Enterprise Linux AS, Version 3 Update 2 - Red Hat, Inc. - Common Criteria BSI-DSZ-CC-0257-2004 - archived

References

http://secunia.com/advisories/22497(Broken Link)
http://secunia.com/advisories/23064(Broken Link)
http://support.avaya.com/elmodocs2/security/ASA-2006-254.htm(Third Party Advisory)
http://www.kb.cert.org/vuls/id/245984(Third Party Advisory, US Government Resource)
http://www.redhat.com/support/errata/RHSA-2006-0710.html(Broken Link)
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=205618(Exploit, Issue Tracking)
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9649(Broken Link)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

Query CVEs from your AI assistant

The CVE/NVD Explorer brain answers CVE questions directly inside Claude, ChatGPT, or any MCP assistant — always up to date, no setup. Add it once and stop pasting advisories into chat.

Add the CVE brain