How severe is CVE-2025-3122?

CVE-2025-3122 has a CVSS 3.x base score of 3.1, rated low severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability low.

Is CVE-2025-3122 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-3122?

CVE-2025-3122 affects Webassembly Webassembly Binary Toolkit. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-3122?

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

Does CVE-2025-3122 have an EU (EUVD) identifier?

Yes. CVE-2025-3122 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-15086.

When was CVE-2025-3122 published?

CVE-2025-3122 was published on 2025-04-02 and last updated on 2026-06-17.

CVE-2025-3122

CVE-2025-3122 is a low-severity vulnerability in Webassembly Webassembly Binary Toolkit with a CVSS 3.x base score of 3.1. 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-476.

Key facts

Severity: Low (CVSS 3.x base score 3.1)
CVSS v2: 2.6
CVSS v4: 2.3
EPSS exploit prediction: 1% (43rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-15086
Weakness: CWE-476
Affected product: Webassembly Webassembly Binary Toolkit
Published: 2025-04-02
Last modified: 2026-06-17

Description

A vulnerability classified as problematic was found in WebAssembly wabt 1.0.36. Affected by this vulnerability is the function BinaryReaderInterp::BeginFunctionBody of the file src/interp/binary-reader-interp.cc. The manipulation leads to null pointer dereference. The attack can be launched remotely. The complexity of an attack is rather high. The exploitation appears to be difficult. The exploit has been disclosed to the public and may be used.

Frequently asked questions

What is CVE-2025-3122?: A vulnerability classified as problematic was found in WebAssembly wabt 1.0.36. Affected by this vulnerability is the function BinaryReaderInterp::BeginFunctionBody of the file src/interp/binary-reader-interp.cc. The manipulation leads to null pointer dereference. The attack can be launched remotely. The complexity of an attack is rather high. The exploitation appears to be difficult. The exploit has been disclosed to the public and may be used.
How severe is CVE-2025-3122?: CVE-2025-3122 has a CVSS 3.x base score of 3.1, rated low severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability low.
Is CVE-2025-3122 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-3122?: CVE-2025-3122 affects Webassembly Webassembly Binary Toolkit. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-3122?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-3122 have an EU (EUVD) identifier?: Yes. CVE-2025-3122 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-15086.
When was CVE-2025-3122 published?: CVE-2025-3122 was published on 2025-04-02 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:webassembly:webassembly_binary_toolkit:1.0.36:*:*:*:*:*:*:*

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