CVE-2021-45293
A Denial of Service vulnerability exists in Binaryen 103 due to an Invalid memory address...
A Denial of Service vulnerability exists in Binaryen 103 due to an Invalid memory address dereference in wasm::WasmBinaryBuilder::visitLet.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
A Denial of Service vulnerability exists in Binaryen 103 due to an Invalid memory address dereference in wasm::WasmBinaryBuilder::visitLet.
- Record
CVE-2021-45293- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:N/A:P - Weakness
- CWE-119
- Updated
- 2026-11-02
CVE List No score
A Denial of Service vulnerability exists in Binaryen 103 due to an Invalid memory address dereference in wasm::WasmBinaryBuilder::visitLet.
- Record
CVE-2021-45293- Updated
- 2026-11-02
EUVDEUVD-2021-32073 No score
A Denial of Service vulnerability exists in Binaryen 103 due to an Invalid memory address dereference in wasm::WasmBinaryBuilder::visitLet.
- Record
EUVD-2021-32073- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-mcjm-q5m8-3xx2 No score
A Denial of Service vulnerability exists in Binaryen 103 due to an Invalid memory address...
A Denial of Service vulnerability exists in Binaryen 103 due to an Invalid memory address dereference in wasm::WasmBinaryBuilder::visitLet.
- Record
GHSA-mcjm-q5m8-3xx2- Weakness
- CWE-119
- Updated
- 2026-11-02
OSV
A Denial of Service vulnerability exists in Binaryen 103 due to an Invalid memory address dereference in wasm::WasmBinaryBuilder::visitLet.
- Record
CVE-2021-45293- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVDEBIAN-CVE-2021-45293
A Denial of Service vulnerability exists in Binaryen 103 due to an Invalid memory address dereference in wasm::WasmBinaryBuilder::visitLet.
- Record
DEBIAN-CVE-2021-45293- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVUBUNTU-CVE-2021-45293
A Denial of Service vulnerability exists in Binaryen 103 due to an Invalid memory address dereference in wasm::WasmBinaryBuilder::visitLet.
- Record
UBUNTU-CVE-2021-45293- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
binaryenDebian:12 |
before 104-1 | 104-1 |
binaryenDebian:13 |
before 104-1 | 104-1 |
binaryenDebian:14 |
before 104-1 | 104-1 |
binaryenUbuntu:20.04:LTS |
All versions, plus listed versions 89-190-191-1 |
None known |
binaryenUbuntu:22.04:LTS |
All versions, plus listed versions 99-3105-1 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-45293 is a medium vulnerability (CVSS 5.5) in Webassembly Binaryen, published December 21, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.80%, the 56th percentile. Fixed in binaryen 104-1.
References
github.com/WebAssembly/binaryen/issues/4384
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YCWLB4PWYQO55F7IGNC7KUYN2MFZE3JP
nvd.nist.gov/vuln/detail/CVE-2021-45293