CVE-2026-18839

Published: Ago 05, 2026 Last Modified: Ago 06, 2026
ExploitDB:
Other exploit source:
Google Dorks:
LOW 2,2
Source: [email protected]
Attack Vector: local
Attack Complexity: high
Privileges Required: low
User Interaction: required
Scope: unchanged
Confidentiality: none
Integrity: none
Availability: low

Description

AI Translation Available

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.

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,0008
Percentile
0,0th
Updated

EPSS Score Trend (Last 3 Days)

191

Integer Underflow (Wrap or Wraparound)

Draft
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Availability Integrity Confidentiality Access Control
Potential Impacts:
Dos: Crash, Exit, Or Restart Dos: Resource Consumption (Cpu) Dos: Resource Consumption (Memory) Dos: Instability Modify Memory Execute Unauthorized Code Or Commands Bypass Protection Mechanism
Applicable Platforms
Languages: C, C++, Java, C#
View CWE Details
https://access.redhat.com/security/cve/CVE-2026-18839
https://access.redhat.com/security/cve/CVE-2026-18839
https://bugzilla.redhat.com/show_bug.cgi?id=2511010
https://bugzilla.redhat.com/show_bug.cgi?id=2511010