ExploitedIn CISA KEVFix available

CVE-2014-0196

Q: Is CVE-2014-0196 actively exploited?

Yes. CVE-2014-0196 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 2023-06-02.

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

CVE-2014-0196 has a CVSS v3 base score of 5.5 (MEDIUM severity), with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Exploitation confirmed. First attested on 2023-05-12 by CISA-ADP, CISA KEV, GCVE · kevintel.

Published2014-05-07
Fixed in3.14.4 · 3.12.20 · 3.10.40 · 3.4.91 · 3.2.59
WeaknessCWE-362

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

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.

Timeline

dates in UTC

2014-05-0710:55CVE publishedNVD
2023-05-12Listed as exploited by GCVEGCVE
2023-05-12Exploitation first reportedCISA KEV
2023-05-12Added to the CISA KEV catalogCISA KEV
2025-02-0713:36SSVC exploitation set to activeCISA-ADP
2026-10-2319:23First public proof of conceptPoC-in-GitHub
2026-10-2319:23EPSS crossed 10 %FIRST EPSS

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2014-0196?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2014-0196?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Linux linux kernel

Branch	Affected	Fixed in	Source
3.x	≥ 3.13, < 3.14.4	3.14.4	NVD
3.x	≥ 3.11, < 3.12.20	3.12.20	NVD
3.x	≥ 3.5, < 3.10.40	3.10.40	NVD
3.x	≥ 3.3, < 3.4.91	3.4.91	NVD
3.2	> 2.6.31, < 3.2.59	3.2.59	NVD
2.6	= 2.6.31	no fix published	NVD

Canonical ubuntu linux

Branch	Affected	Fixed in	Source
10.4	= 10.04	no fix published	NVD
12.4	= 12.04	no fix published	NVD
12.10	= 12.10	no fix published	NVD
13.10	= 13.10	no fix published	NVD
14.4	= 14.04	no fix published	NVD

Debian debian linux

Branch	Affected	Fixed in	Source
6.0	= 6.0	no fix published	NVD
7.0	= 7.0	no fix published	NVD

27 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Update Linux linux kernel to 3.14.4 · 3.12.20 · 3.10.40 · 3.4.91 · 3.2.59
CISA’s required action: The impacted product is end-of-life and should be disconnected if still in use.due 2023-06-02

Advisories and patches

bugzilla.redhat.comPatch
github.comPatch

Detection

read 2026-10-23 19:23 UTC

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: 2 repositories, unverifiedSunRain/CVE-2014-0196tempbottle/CVE-2014-0196

CISA Known Exploited Vulnerability

Date Added: 2023-05-12
Patch Due Date: 2023-06-02
Ransomware Use: Unknown
Required Action: The impacted product is end-of-life and should be disconnected if still in use.

Sources

CISA KEVKEV entry2023-05-12
GCVEexploitation2023-05-12
CISA-ADPSSVC decisionactive2025-02-07
OpenCVESSVC decisionactive—
CISA-ADPCVSS 3.15.52025-02-07
NVDCVSS 2.06.9read 2026-10-23
CISA-ADPweakness (CWE)CWE-3622025-02-07
NVDweakness (CWE)CWE-362read 2026-10-23
FIRST EPSSEPSS score20.3 %read 2026-10-23
PoC-in-GitHubproof of concept2read 2026-10-23

Technical details

CVSS v3 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Published: 2014-05-07
Last Modified: 2026-06-17
NVD status: Analyzed

Frequently asked questions

What is CVE-2014-0196?

Is CVE-2014-0196 actively exploited?

Yes. CVE-2014-0196 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 2023-06-02.

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

CVE-2014-0196 has a CVSS v3 base score of 5.5 (MEDIUM severity), with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

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