CVE-2014-0196
MEDIUMCISA KEVEPSS 98th pctlDescription
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.
How to fix
TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works
Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.
CVSS v3 Vector
Exploitability
Impact
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Exploit Intelligence
Very high risk: more likely to be exploited than 98% of all known CVEs.
Linux Kernel Race Condition Vulnerability
Linux Kernel contains a race condition vulnerability within the n_tty_write function that allows local users to cause a denial-of-service (DoS) or gain privileges via read and write operations with long strings.
The impacted product is end-of-life and should be disconnected if still in use.
Remediation due: 2023-06-02
References
Related Vulnerabilities
Other CWE-362 (Race Condition) vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2024-6387 | High | 8.1 | 100% | - | Fix |
| CVE-2023-36884 | High | 7.5 | 99% | KEV + Ransom | Fix |
| CVE-2018-15473 | Medium | 5.3 | 99% | - | Fix |
| CVE-2024-27983 | High | 8.2 | 87% | - | Fix |
| CVE-2014-0226 | Medium | 6.8 | 86% | - | Fix |
| CVE-2016-5195 | High | 7.0 | 84% | KEV | Fix |
Common questions
How do I fix CVE-2014-0196?
Published advisories record a fix for 10 affected products. The "How to fix" section on this page lists the fixed version and source advisory for each one, so apply the entry matching what you actually run.
Is CVE-2014-0196 being actively exploited?
Yes. CVE-2014-0196 is listed in the CISA Known Exploited Vulnerabilities catalog, which means exploitation has been observed in the wild. US federal agencies were required to remediate it by 2023-06-02. Treat it as a priority whatever its CVSS score says.
How severe is CVE-2014-0196?
CVE-2014-0196 has a CVSS v3 base score of 5.5, rated medium. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.
What does CVE-2014-0196 affect?
Published advisories record a fix for linux (Debian), linux (Ubuntu), linux-image-3.13.0-24-generic (Ubuntu), linux-image-3.13.0-24-generic-lpae (Ubuntu), and 6 more. Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.
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<a href="https://tridentstack.com/cve/CVE-2014-0196"><img src="https://tridentstack.com/cve/badge/CVE-2014-0196.svg" alt="CVE-2014-0196"></a>This vulnerability is actively exploited in the wild
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-06-17.