How severe is CVE-2018-17293?

CVE-2018-17293 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-17293 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-17293?

CVE-2018-17293 affects Webassembly Virtual Machine Project Webassembly Virtual Machine. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-17293?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2018-17293 published?

CVE-2018-17293 was published on 2018-09-21 and last updated on 2026-06-17.

CVE-2018-17293

CVE-2018-17293 is a high-severity vulnerability in Webassembly Virtual Machine Project Webassembly Virtual Machine with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-476.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.8
EPSS exploit prediction: 2% (73rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-476
Affected product: Webassembly Virtual Machine Project Webassembly Virtual Machine
Published: 2018-09-21
Last modified: 2026-06-17

Description

An issue was discovered in WAVM before 2018-09-16. The run function in Programs/wavm/wavm.cpp does not check whether there is Emscripten memory to store the command-line arguments passed by the input WebAssembly file's main function, which allows attackers to cause a denial of service (application crash by NULL pointer dereference) or possibly have unspecified other impact by crafting certain WebAssembly files.

Frequently asked questions

What is CVE-2018-17293?: An issue was discovered in WAVM before 2018-09-16. The run function in Programs/wavm/wavm.cpp does not check whether there is Emscripten memory to store the command-line arguments passed by the input WebAssembly file's main function, which allows attackers to cause a denial of service (application crash by NULL pointer dereference) or possibly have unspecified other impact by crafting certain WebAssembly files.
How severe is CVE-2018-17293?: CVE-2018-17293 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-17293 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-17293?: CVE-2018-17293 affects Webassembly Virtual Machine Project Webassembly Virtual Machine. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-17293?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2018-17293 published?: CVE-2018-17293 was published on 2018-09-21 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:webassembly_virtual_machine_project:webassembly_virtual_machine:*:*:*:*:*:*:*:*

More vulnerabilities in Webassembly Virtual Machine Project Webassembly Virtual Machine

CVE-2018-16770 — High (CVSS 8.8): In WAVM through 2018-07-26, a crafted file sent to the WebAssembly Virtual Machine may cause a denial of service…
CVE-2018-16769 — High (CVSS 8.8): In WAVM through 2018-07-26, a crafted file sent to the WebAssembly Virtual Machine may cause a denial of service…
CVE-2018-16768 — High (CVSS 8.8): In WAVM through 2018-07-26, a crafted file sent to the WebAssembly Virtual Machine may cause a denial of service…
CVE-2018-16767 — High (CVSS 8.8): In WAVM through 2018-07-26, a crafted file sent to the WebAssembly Virtual Machine may cause a denial of service…
CVE-2018-16766 — High (CVSS 8.8): In WAVM through 2018-07-26, a crafted file sent to the WebAssembly Virtual Machine may cause a denial of service…
CVE-2018-16765 — High (CVSS 8.8): In WAVM through 2018-07-26, a crafted file sent to the WebAssembly Virtual Machine may cause a denial of service…

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