CVE-2019-7702

6.5 mediumEPSS 1.1%

Medium (6.5) in webassembly binaryen. EPSS 1.1% chance of exploitation in the next 30 days.

A NULL pointer dereference was discovered in wasm::SExpressionWasmBuilder::parseExpression in wasm-s-parser.cpp in Binaryen 1.38.22. A crafted wasm input can cause a segmentation fault, leading to denial-of-service, as demonstrated by wasm-as.

Severity

CVSS 3.1

6.5 medium

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS: 1.1% chance of exploitation in the next 30 days; higher than 66% of CVEs (scores of 2026-10-31)
CWE: CWE-476
Published: 2019-02-10
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

webassembly:binaryen

References

https://github.com/WebAssembly/binaryen/issues/1867
https://github.com/WebAssembly/binaryen/issues/1867

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