Is CVE-2013-4343 being actively exploited?

CVE-2013-4343 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2013-4343?

CVE-2013-4343 has a CVSS 2.0 base score of 6.9 (MEDIUM).

CVE-2013-4343

MEDIUM · CVSS 6.9EPSS 0.4%EU EUVD

Use-after-free vulnerability in drivers/net/tun.c in the Linux kernel through 3.11.1 allows local users to gain privileges by leveraging the CAP_NET_ADMIN capability and providing an invalid tuntap interface name in a TUNSETIFF ioctl call.

Key facts

CVSS score: 6.9 (v2.0)
Severity: MEDIUM
CVSS vector: AV:L/AC:M/Au:N/C:C/I:C/A:C
Weakness (CWE): CWE-399
EPSS score: 0.4% (29th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2013-4229)
Published: September 25, 2013
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2013-4229 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.

View on the EU Vulnerability Database

Affected products

canonical / ubuntu linux
canonical / ubuntu linux
linux / linux kernel

References

http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00071.html(Mailing List, Third Party Advisory)
http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00039.html(Mailing List, Third Party Advisory)
http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00048.html(Mailing List, Third Party Advisory)
http://marc.info/?l=linux-kernel&m=137889490510745&w=2(Mailing List, Third Party Advisory)
http://rhn.redhat.com/errata/RHSA-2013-1490.html(Third Party Advisory)
http://www.openwall.com/lists/oss-security/2013/09/12/3(Mailing List, Third Party Advisory)
http://www.spinics.net/lists/netdev/msg250066.html(Third Party Advisory)
http://www.ubuntu.com/usn/USN-2020-1(Third Party Advisory)
http://www.ubuntu.com/usn/USN-2023-1(Third Party Advisory)
http://www.ubuntu.com/usn/USN-2049-1(Third Party Advisory)
https://bugzilla.redhat.com/show_bug.cgi?id=1007733(Issue Tracking, Third Party Advisory)

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

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