What’s Vulnerable › Vulnerabilities

CVE-2021-45947

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-01-01 · updated 2026-06-17
• Weakness: CWE-787

Description

Wasm3 0.5.0 has an out-of-bounds write in Runtime_Release (called from EvaluateExpression and InitDataSegments).

Affected products

• wasm3: 0.5.0

References

• https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=33689
• https://github.com/google/oss-fuzz-vulns/blob/main/vulns/wasm3/OSV-2021-689.yaml
• https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=33689
• https://github.com/google/oss-fuzz-vulns/blob/main/vulns/wasm3/OSV-2021-689.yaml

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