How severe is CVE-2025-46597?

CVE-2025-46597 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2025-46597 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-46597?

CVE-2025-46597 affects Bitcoin Bitcoin Core. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-46597?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-46597 have an EU (EUVD) identifier?

Yes. CVE-2025-46597 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-208891.

When was CVE-2025-46597 published?

CVE-2025-46597 was published on 2026-03-20 and last updated on 2026-06-17.

CVE-2025-46597

CVE-2025-46597 is a high-severity vulnerability in Bitcoin Bitcoin Core with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-190.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 0% (20th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-208891
Weakness: CWE-190
Affected product: Bitcoin Bitcoin Core
Published: 2026-03-20
Last modified: 2026-06-17

Description

Bitcoin Core 0.13.0 through 29.x has an integer overflow.

Frequently asked questions

What is CVE-2025-46597?: Bitcoin Core 0.13.0 through 29.x has an integer overflow.
How severe is CVE-2025-46597?: CVE-2025-46597 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2025-46597 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-46597?: CVE-2025-46597 affects Bitcoin Bitcoin Core. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-46597?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-46597 have an EU (EUVD) identifier?: Yes. CVE-2025-46597 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-208891.
When was CVE-2025-46597 published?: CVE-2025-46597 was published on 2026-03-20 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:bitcoin:bitcoin_core:*:*:*:*:*:*:*:*

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