CVE-2026-18839EPSS p1.3%

CVE-2026-18839CVE-2026-18839

Description

An integer underflow was found in the popt library when formatting help text for option tables that exceed the terminal width. A local user who can cause an application to print help under those conditions may cause that application to crash or fail to display help, resulting in a denial of service of the affected application.

Scoring

CVSS 2.2 ()
VectorCVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:L
EPSS0.11% probability of exploitation · percentile 1.3% · 2026-10-05T12:00:23Z
Last modified2026-09-01
Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.