CVE-2018-16767 — 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 unspecified "heap-buffer-overflow" condition in FunctionValidationContext::popAndValidateOperand

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HIGH

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 unspecified "heap-buffer-overflow" condition in FunctionValidationContext::popAndValidateOperand

Published Sep 10, 2018

8.8

HIGH

CVSS 3.0

EPSS 1.27%

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 unspecified "heap-buffer-overflow" condition in FunctionValidationContext::popAndValidateOperand.

Affected products

Remediation

No remediation recorded yet.

Metrics

1.27% 0.01269

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.

EPSS probability 0.01269

Score over time

2021–2026

EPSS v1
EPSS v5
EPSS v2
EPSS v3

Percentile over time

EPSS v1
EPSS v5
EPSS v2
EPSS v3

Table of values (11 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 1, 2026	1.27% (0.01269)	68.73th	v5 (v2026.06.15)
Sep 20, 2026	1.27% (0.01269)	68.48th	v5 (v2026.06.15)
Jul 20, 2024	0.32% (0.00320)	70.89th	v3 (v2023.03.01)
Jun 25, 2024	0.32% (0.00320)	70.73th	v3 (v2023.03.01)
Apr 29, 2024	0.30% (0.00300)	69.18th	v3 (v2023.03.01)
Sep 3, 2023	0.24% (0.00237)	61.12th	v3 (v2023.03.01)
Mar 7, 2023	0.29% (0.00289)	63.97th	v3 (v2023.03.01)
Mar 6, 2023	0.89% (0.00885)	27.89th	v2 (v2022.01.01)
Feb 4, 2022	0.89% (0.00885)	10.50th	v2 (v2022.01.01)
Feb 3, 2022	0.55% (0.00550)	12.76th	v5 (v2026.06.15)
Apr 14, 2021	0.55% (0.00550)	0.00th	v1

Weaknesses (1)

CWE-119

Buffer Overflow

References (1)

https://github.com/AndrewScheidecker/WAVM/issues/97
x_refsource_MISCExploitIssue TrackingPatchThird Party Advisory

Link	Providers	Tags
https://github.com/AndrewScheidecker/WAVM/issues/97		x_refsource_MISCExploitIssue TrackingPatchThird Party Advisory

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner mitre

Published Sep 10, 2018

Updated Aug 5, 2024

Reserved Sep 9, 2018

Link CVE-2018-16767

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 17, 2026

Link CVE-2018-16767

Red Hat

Severity n/a

Public date n/a

Links CVE-2018-16767