CVE-2024-34251
CVE-2024-34251 is a high-severity vulnerability in Bytecodealliance Webassembly Micro Runtime 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-125.
Key facts
- Severity: High (CVSS 3.x base score 7.5)
- EPSS exploit prediction: 1% (51st percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2024-34713
- Weakness: CWE-125
- Affected product: Bytecodealliance Webassembly Micro Runtime
- Published:
- Last modified:
Description
An out-of-bound memory read vulnerability was discovered in Bytecode Alliance wasm-micro-runtime v2.0.0 which allows a remote attacker to cause a denial of service via the "block_type_get_arity" function in core/iwasm/interpreter/wasm.h.
Frequently asked questions
- What is CVE-2024-34251?
- An out-of-bound memory read vulnerability was discovered in Bytecode Alliance wasm-micro-runtime v2.0.0 which allows a remote attacker to cause a denial of service via the "block_type_get_arity" function in core/iwasm/interpreter/wasm.h.
- How severe is CVE-2024-34251?
- CVE-2024-34251 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-2024-34251 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2024-34251?
- CVE-2024-34251 affects Bytecodealliance Webassembly Micro Runtime. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2024-34251?
- 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-2024-34251 have an EU (EUVD) identifier?
- Yes. CVE-2024-34251 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-34713.
- When was CVE-2024-34251 published?
- CVE-2024-34251 was published on 2024-05-06 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:bytecodealliance:webassembly_micro_runtime:2.0.0:*:*:*:*:*:*:*
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All CVEs affecting Bytecodealliance Webassembly Micro Runtime →
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