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Linux, Kernel
Description
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.
CVSS severity
Medium (5.5/10)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Sourced from NVD, reflects how severe this vulnerability is if exploited, not whether it has been. Every advisory on this page is already a CISA-confirmed active exploitation case regardless of its CVSS score.
EPSS, exploit probability
High20.3%
estimated chance of real-world exploitation in the next 30 days, higher than 97.5% of every CVE FIRST.org scores
Refreshed 10/28/2026, via FIRST.org's EPSS model, not CVSS, this measures likelihood of exploitation, not how severe it would be.
Public exploit references (via NVD)
Required action
The impacted product is end-of-life and should be disconnected if still in use.
CISA-recommended due date: 2023-06-02
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