CVE-2019-7703
MEDIUM
6.5
CVSS Score
Published: February 10, 2019 at 10:00 PM UTC
Updated: June 17, 2026 at 02:40 AM UTC
1 product affected across 1 vendorBinaryen
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Severity
MEDIUM6.5
Exploit prediction
EPSS 1%
Description
In Binaryen 1.38.22, there is a use-after-free problem in wasm::WasmBinaryBuilder::visitCall in wasm-binary.cpp. Remote attackers could leverage this vulnerability to cause a denial-of-service via a wasm file, as demonstrated by wasm-merge.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v < 64
Affected range stops below 64, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (1)
x_refsource_MISCExploitPatchThird Party Advisory
Source: [email protected]
https://github.com/WebAssembly/binaryen/issues/1865CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- REQUIRED
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-416
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