CVE-2026-18839

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 servi...

CVE-2026-18839 Popt-devel: popt-static: size_t underflow in singleoptionhelp

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 servi...

EUVD-2026-53642

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 servi...

CVE-2026-18839

The CVE-2026-18839 vulnerability concerns the popt library: an integer size_t underflow occurs when formatting help text for option tables that exceed terminal width. The issue is exploitable locally by causing an application to print help, potentially crashing the application or rendering the he...