CVE-2025-15413: wasm3 m3_exec.h op_CallIndirect memory corruption

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2026-01-01 · updated 2026-10-14
Weakness: CWE-119

Description

A vulnerability was detected in wasm3 up to 0.5.0. Impacted is the function op_SetSlot_i32/op_CallIndirect of the file m3_exec.h. Performing a manipulation results in memory corruption. The attack needs to be approached locally. The exploit is now public and may be used. Unfortunately, the project has no active maintainer at the moment.

Affected products

wasm3: through 0.5.0

References

https://github.com/wasm3/wasm3/
https://github.com/wasm3/wasm3/issues/543
https://github.com/wasm3/wasm3/issues/547
https://vuldb.com/?ctiid.339334
https://vuldb.com/?id.339334
https://vuldb.com/?submit.719829
https://vuldb.com/?submit.719831

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