CVE-2025-35435
CISA Thorium download stream divide by zero
MEDIUM
4.3
CVSS Score
Published: September 17, 2025 at 04:53 PM UTC
Updated: June 17, 2026 at 09:14 AM UTC
1 product affected across 1 vendorThorium
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Severity
MEDIUM4.3
Exploit prediction
EPSS 0.4%
SSVC
PoC
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.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (3)
Product
Source: cverecord
https://github.com/cisagov/thorium/commit/7c94a0b9bc2dc55e0c307360452f348bac06820cVendor Advisory
Source: cverecord
https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2025/va-25-259-01.jsonSSVC — Action Prioritization
SSVCPoCNot automatablePartial impact
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
4.3MEDIUMcisa-cg
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- LOW
Vector?
Quick Info
StatusANALYZED
CWE
CWE-369
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