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No exploitation reportedFix available

CVE-2019-15759

No exploitation reported by the sources we read.

  • Published2019-08-29
  • Fixed in89
  • WeaknessCWE-476

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

An issue was discovered in Binaryen 1.38.32. Two visitors in ir/ExpressionManipulator.cpp can lead to a NULL pointer dereference in wasm::LocalSet::finalize in wasm/wasm.cpp. A crafted input can cause segmentation faults, leading to denial-of-service, as demonstrated by wasm2js.

Timeline

dates in UTC
  1. 2019-08-2902:15CVE publishedNVD

Versions per branch

NVD
Webassembly binaryen
BranchAffectedFixed in
89.x< 8989

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • binaryenDebian:14all versions · fixed in 89-1
  • binaryenDebian:13all versions · fixed in 89-1
  • binaryenDebian:12all versions · fixed in 89-1

Full record on NVD

Fix

  1. Update Webassembly binaryen to 89

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Published
2019-08-29
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-w872-v6x7-99f4

Frequently asked questions

What is CVE-2019-15759?

An issue was discovered in Binaryen 1.38.32. Two visitors in ir/ExpressionManipulator.cpp can lead to a NULL pointer dereference in wasm::LocalSet::finalize in wasm/wasm.cpp. A crafted input can cause segmentation faults, leading to denial-of-service, as demonstrated by wasm2js.

Is CVE-2019-15759 actively exploited?

Active exploitation of CVE-2019-15759 has not been confirmed. Its EPSS score was 1.3% on 2026-11-08, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2019-15759?

CVE-2019-15759 has a CVSS v3 base score of 6.5 (MEDIUM severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

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