How severe is CVE-2025-6274?

CVE-2025-6274 has a CVSS 3.x base score of 3.3, rated low severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.

Is CVE-2025-6274 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (8th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-6274?

CVE-2025-6274 affects Webassembly Wabt. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-6274?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-6274 have an EU (EUVD) identifier?

Yes. CVE-2025-6274 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-18693.

When was CVE-2025-6274 published?

CVE-2025-6274 was published on 2025-06-19 and last updated on 2026-06-17.

CVE-2025-6274

CVE-2025-6274 is a low-severity vulnerability in Webassembly Wabt with a CVSS 3.x base score of 3.3. 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-400.

Key facts

Severity: Low (CVSS 3.x base score 3.3)
CVSS v2: 1.7
CVSS v4: 1.9
EPSS exploit prediction: 0% (8th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-18693
Weakness: CWE-400
Affected product: Webassembly Wabt
Published: 2025-06-19
Last modified: 2026-06-17

Description

A vulnerability was found in WebAssembly wabt up to 1.0.37. It has been classified as problematic. Affected is the function OnDataCount of the file src/interp/binary-reader-interp.cc. The manipulation leads to resource consumption. Attacking locally is a requirement. The exploit has been disclosed to the public and may be used. A similar issue reported during the same timeframe was disputed by the code maintainer because it might not affect "real world wasm programs". Therefore, this entry might get disputed as well in the future.

Frequently asked questions

What is CVE-2025-6274?: A vulnerability was found in WebAssembly wabt up to 1.0.37. It has been classified as problematic. Affected is the function OnDataCount of the file src/interp/binary-reader-interp.cc. The manipulation leads to resource consumption. Attacking locally is a requirement. The exploit has been disclosed to the public and may be used. A similar issue reported during the same timeframe was disputed by the code maintainer because it might not affect "real world wasm programs". Therefore, this entry might get disputed as well in the future.
How severe is CVE-2025-6274?: CVE-2025-6274 has a CVSS 3.x base score of 3.3, rated low severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.
Is CVE-2025-6274 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (8th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-6274?: CVE-2025-6274 affects Webassembly Wabt. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-6274?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-6274 have an EU (EUVD) identifier?: Yes. CVE-2025-6274 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-18693.
When was CVE-2025-6274 published?: CVE-2025-6274 was published on 2025-06-19 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:webassembly:wabt:*:*:*:*:*:*:*:*

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