CVE-2025-35435

MEDIUMNVD 4.34.3—Trending — 3 sources updated this weekElevated

4.3

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 v3: 4.3
EG Score: 4.3(medium)
EPSS: 35.3%
KEV: Not listed

Published

September 17, 2025

Last Modified

September 26, 2025

References (3)

9119a7d8-5eab-497f-8521-727c672e3725https://github.com/cisagov/thorium/commit/7c94a0b9bc2dc55e0c307360452f348bac06820c
9119a7d8-5eab-497f-8521-727c672e3725https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2025/va-25-259-01.json
9119a7d8-5eab-497f-8521-727c672e3725https://www.cve.org/CVERecord?id=CVE-2025-CVE-2025-35435

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-369Divide By Zero

Data Freshness Timeline

(refreshed 9× in last 7d / 9× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-02 20:12 UTCepss_batch
2026-06-01 13:51 UTCepss_batch
2026-06-01 13:51 UTCepss_batch
2026-05-31 22:30 UTCepss_batch
2026-05-31 22:30 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-29 22:31 UTCEG score recompute
2026-05-29 22:31 UTCGHSA enrichment
2026-05-29 13:44 UTCepss_batch

Frequently asked(5)

What is CVE-2025-35435?

CVE-2025-35435 is a medium vulnerability published on September 17, 2025. 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.

When was CVE-2025-35435 disclosed?

CVE-2025-35435 was first published in the National Vulnerability Database on September 17, 2025, with the most recent update on September 26, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2025-35435 actively exploited?

CVE-2025-35435 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 35.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2025-35435?

CVE-2025-35435 has a CVSS v3 base score of 4.3 (NVD).

How do I remediate CVE-2025-35435?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-35435, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2025-35435

📅 Published

🔄 Last Modified

🔗 References (3)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2025-35435?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (3)

Frequently asked(5)

Related CVEs(same CWE)