Is CVE-2014-0196 being actively exploited?

Yes. CVE-2014-0196 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added on May 12, 2023.

What is the CVSS score for CVE-2014-0196?

CVE-2014-0196 has a CVSS 3.1 base score of 5.5 (MEDIUM).

CVE-2014-0196

MEDIUM · CVSS 5.5CISA KEV: actively exploitedEPSS 22.5%EU EUVD: exploited

The n_tty_write function in drivers/tty/n_tty.c in the Linux kernel through 3.14.3 does not properly manage tty driver access in the "LECHO & !OPOST" case, which allows local users to cause a denial of service (memory corruption and system crash) or gain privileges by triggering a race condition involving read and write operations with long strings.

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-362
EPSS score: 22.5% (98th percentile)
In CISA KEV: Yes, added May 12, 2023
In EU EUVD: Yes (EUVD-2014-0247)
Published: May 7, 2014
NVD last modified: June 17, 2026
Status: Analyzed

CISA Known Exploited Vulnerability

Linux Kernel Race Condition Vulnerability

Added to the KEV catalog on May 12, 2023; federal remediation due June 2, 2023.

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2014-0247 in the EU Vulnerability Database. ENISA flags it as known exploited. Last updated in EUVD on October 22, 2025.

View on the EU Vulnerability Database

Affected products

canonical / ubuntu linux
canonical / ubuntu linux
canonical / ubuntu linux
canonical / ubuntu linux
canonical / ubuntu linux
debian / debian linux
debian / debian linux
f5 / big-ip access policy manager
f5 / big-ip advanced firewall manager
f5 / big-ip analytics
f5 / big-ip application acceleration manager
f5 / big-ip application security manager
f5 / big-ip edge gateway
f5 / big-ip global traffic manager
f5 / big-ip link controller
f5 / big-ip local traffic manager
f5 / big-ip policy enforcement manager
f5 / big-ip protocol security module
f5 / big-ip wan optimization manager
f5 / big-ip webaccelerator
f5 / big-iq application delivery controller
f5 / big-iq centralized management
f5 / big-iq cloud
f5 / big-iq cloud and orchestration
f5 / big-iq device
f5 / big-iq security
f5 / enterprise manager
f5 / enterprise manager
linux / linux kernel
linux / linux kernel
linux / linux kernel
linux / linux kernel
linux / linux kernel
linux / linux kernel
linux / linux kernel
linux / linux kernel
linux / linux kernel
oracle / linux
redhat / enterprise linux
redhat / enterprise linux eus
redhat / enterprise linux eus
redhat / enterprise linux server eus
suse / suse linux enterprise desktop
suse / suse linux enterprise high availability extension
suse / suse linux enterprise server
suse / suse linux enterprise server

Certified products that may be affected

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

Oracle Linux 7 Unbreakable Enterprise Kernel (UEK 6) Cryptographic Module - Oracle Corporation - FIPS 140 4169 - historical
Oracle Linux 6 Kernel Crypto API Cryptographic Module - Oracle Corporation - FIPS 140 3421 - historical
Oracle Linux 6 Libreswan Cryptographic Module - Oracle Corporation - FIPS 140 3170 - historical
Oracle Linux 6 NSS Cryptographic Module - Oracle Corporation - FIPS 140 3111 - historical
Oracle Linux 6 OpenSSH Server Cryptographic Module - Oracle Corporation - FIPS 140 3031 - historical

See all 8 in the Security Certifications Explorer.

References

http://bugzilla.novell.com/show_bug.cgi?id=875690(Issue Tracking, Permissions Required, Third Party Advisory)
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=4291086b1f081b869c6d79e5b7441633dc3ace00(Broken Link)
http://linux.oracle.com/errata/ELSA-2014-0771.html(Third Party Advisory)
http://lists.opensuse.org/opensuse-security-announce/2014-05/msg00007.html(Mailing List, Third Party Advisory)
http://lists.opensuse.org/opensuse-security-announce/2014-05/msg00012.html(Mailing List, Third Party Advisory)
http://pastebin.com/raw.php?i=yTSFUBgZ(Exploit, Mailing List, Third Party Advisory)
http://rhn.redhat.com/errata/RHSA-2014-0512.html(Third Party Advisory)
http://secunia.com/advisories/59218(Not Applicable)
http://secunia.com/advisories/59262(Broken Link)
http://secunia.com/advisories/59599(Broken Link)
http://source.android.com/security/bulletin/2016-07-01.html(Not Applicable)
http://support.f5.com/kb/en-us/solutions/public/15000/300/sol15319.html(Third Party Advisory)
http://www.debian.org/security/2014/dsa-2926(Third Party Advisory)
http://www.debian.org/security/2014/dsa-2928(Third Party Advisory)
http://www.exploit-db.com/exploits/33516(Exploit, Third Party Advisory, VDB Entry)
http://www.openwall.com/lists/oss-security/2014/05/05/6(Mailing List, Third Party Advisory)
http://www.osvdb.org/106646(Broken Link)
http://www.ubuntu.com/usn/USN-2196-1(Third Party Advisory)
http://www.ubuntu.com/usn/USN-2197-1(Third Party Advisory)
http://www.ubuntu.com/usn/USN-2198-1(Third Party Advisory)
http://www.ubuntu.com/usn/USN-2199-1(Third Party Advisory)
http://www.ubuntu.com/usn/USN-2200-1(Third Party Advisory)
http://www.ubuntu.com/usn/USN-2201-1(Third Party Advisory)
http://www.ubuntu.com/usn/USN-2202-1(Third Party Advisory)
http://www.ubuntu.com/usn/USN-2203-1(Third Party Advisory)
http://www.ubuntu.com/usn/USN-2204-1(Third Party Advisory)
https://bugzilla.redhat.com/show_bug.cgi?id=1094232(Issue Tracking, Patch, Third Party Advisory)
https://github.com/torvalds/linux/commit/4291086b1f081b869c6d79e5b7441633dc3ace00(Exploit, Patch, Third Party Advisory)
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2014-0196(US Government Resource)

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

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