BaseFortify

Publication date: 2025-09-17

Last updated on: 2025-09-26

Assigner: Cybersecurity and Infrastructure Security Agency (CISA) U.S. Civilian Government

Description

CISA Thorium accepts a stream split size of zero then divides by this value. A remote, authenticated attacker could cause the service to crash. Fixed in commit 89101a6.

CVSS Scores

EPSS Scores

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Meta Information

Published

2025-09-17

Last Modified

2025-09-26

Generated

2026-07-26

AI Q&A

2025-09-17

EPSS Evaluated

2026-07-25

NVD

CVE-2025-35435

Affected Vendors & Products

Vendor	Product	Version / Range
cisa	thorium	to 1.1.2 (inc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-369	The product divides a value by zero.

Attack-Flow Graph

Executive Summary

This vulnerability occurs because CISA Thorium accepts a stream split size of zero and then divides by this value, which leads to a division by zero error. A remote, authenticated attacker can exploit this to cause the service to crash.

Impact Analysis

The vulnerability can cause the affected service to crash, leading to a denial of service condition. This could disrupt availability of the service for legitimate users.

Mitigation Strategies

Apply the fix provided in commit 89101a6 to the CISA Thorium service to prevent the crash caused by a zero stream split size.

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