How severe is CVE-2025-24800?

CVE-2025-24800 has a CVSS 4.0 base score of 9.3, rated critical severity.

Is CVE-2025-24800 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-24800?

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

Does CVE-2025-24800 have an EU (EUVD) identifier?

Yes. CVE-2025-24800 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-0205.

When was CVE-2025-24800 published?

CVE-2025-24800 was published on 2025-01-28 and last updated on 2026-06-17.

CVE-2025-24800

CVE-2025-24800 is a critical-severity vulnerability with a CVSS 4.0 base score of 9.3. 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-347.

Key facts

Severity: Critical (CVSS 4.0 base score 9.3)
EPSS exploit prediction: 0% (22nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-0205
Weakness: CWE-347
Published: 2025-01-28
Last modified: 2026-06-17

Description

Hyperbridge is a hyper-scalable coprocessor for verifiable, cross-chain interoperability. A critical vulnerability was discovered in the ismp-grandpa crate, that allowed a malicious prover easily convince the verifier of the finality of arbitrary headers. This could be used to steal funds or compromise other kinds of cross-chain applications. This vulnerability is fixed in 15.0.1.

Frequently asked questions

What is CVE-2025-24800?: Hyperbridge is a hyper-scalable coprocessor for verifiable, cross-chain interoperability. A critical vulnerability was discovered in the ismp-grandpa crate, that allowed a malicious prover easily convince the verifier of the finality of arbitrary headers. This could be used to steal funds or compromise other kinds of cross-chain applications. This vulnerability is fixed in 15.0.1.
How severe is CVE-2025-24800?: CVE-2025-24800 has a CVSS 4.0 base score of 9.3, rated critical severity.
Is CVE-2025-24800 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-24800?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2025-24800 have an EU (EUVD) identifier?: Yes. CVE-2025-24800 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-0205.
When was CVE-2025-24800 published?: CVE-2025-24800 was published on 2025-01-28 and last updated on 2026-06-17.

References

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