How severe is CVE-2018-16764?

CVE-2018-16764 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-2018-16764 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-16764?

CVE-2018-16764 affects Webassembly Virtual Machine Project Webassembly Virtual Machine. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-16764?

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-2018-16764 published?

CVE-2018-16764 was published on 2018-09-10 and last updated on 2026-06-17.

CVE-2018-16764

CVE-2018-16764 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-125.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.8
EPSS exploit prediction: 1% (66th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-125
Affected product: Webassembly Virtual Machine Project Webassembly Virtual Machine
Published: 2018-09-10
Last modified: 2026-06-17

Description

In WAVM through 2018-07-26, a crafted file sent to the WebAssembly Virtual Machine may cause a denial of service (application crash) or possibly have unspecified other impact because of an IR::FunctionValidationContext::catch_all heap-based buffer over-read.

Frequently asked questions

What is CVE-2018-16764?: In WAVM through 2018-07-26, a crafted file sent to the WebAssembly Virtual Machine may cause a denial of service (application crash) or possibly have unspecified other impact because of an IR::FunctionValidationContext::catch_all heap-based buffer over-read.
How severe is CVE-2018-16764?: CVE-2018-16764 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-2018-16764 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-16764?: CVE-2018-16764 affects Webassembly Virtual Machine Project Webassembly Virtual Machine. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-16764?: 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-2018-16764 published?: CVE-2018-16764 was published on 2018-09-10 and last updated on 2026-06-17.

References

https://github.com/AndrewScheidecker/WAVM/issues/93

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-2018-17293 — High (CVSS 8.8): An issue was discovered in WAVM before 2018-09-16. The run function in Programs/wavm/wavm.cpp does not check whether…
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…

All CVEs affecting Webassembly Virtual Machine Project Webassembly Virtual Machine →

Other CWE-125 (Out-of-bounds Read) vulnerabilities

CVE-2026-24826 — Critical (CVSS 10.0): Out-of-bounds Write, Divide By Zero, NULL Pointer Dereference, Use of Uninitialized Resource, Out-of-bounds Read,…
CVE-2024-22004 — Critical (CVSS 10.0): Due to length check, an attacker with privilege access on a Linux Nonsecure operating system can trigger a…
CVE-2021-41556 — Critical (CVSS 10.0): sqclass.cpp in Squirrel through 2.2.5 and 3.x through 3.1 allows an out-of-bounds read (in the core interpreter) that…
CVE-2021-21777 — Critical (CVSS 10.0): An information disclosure vulnerability exists in the Ethernet/IP UDP handler functionality of EIP Stack Group OpENer…
CVE-2017-14451 — Critical (CVSS 10.0): An exploitable out-of-bounds read vulnerability exists in libevm (Ethereum Virtual Machine) of CPP-Ethereum. A…
CVE-2013-0767 — Critical (CVSS 10.0): The nsSVGPathElement::GetPathLengthScale function in Mozilla Firefox before 18.0, Firefox ESR 10.x before 10.0.12 and…

Browse all CWE-125 (Out-of-bounds Read) vulnerabilities →