WebAssembly wabt binary-reader-objdump.cc LogOpcode assertion

Summary

CVECVE-2025-6273
StatePUBLISHED
AssignerVulDB
Source PriorityCVE Program / NVD first with legacy fallback
Published2025-06-19 19:15:21 UTC
Updated2026-04-29 01:00:01 UTC
DescriptionA vulnerability was found in WebAssembly wabt up to 1.0.37 and classified as problematic. This issue affects the function LogOpcode of the file src/binary-reader-objdump.cc. The manipulation leads to reachable assertion. Local access is required to approach this attack. The exploit has been disclosed to the public and may be used. The real existence of this vulnerability is still doubted at the moment. The code maintainer explains that this issue might not affect "real world wasm programs".

Risk And Classification

Primary CVSS: v4.0 1.9 LOW from [email protected]

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Problem Types: CWE-617 | CWE-617 Reachable Assertion


VersionSourceTypeScoreSeverityVector
4.0[email protected]Secondary1.9LOWCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/C...
4.0CNADECLARED4.8MEDIUMCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
3.1[email protected]Secondary3.3LOWCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
3.1CNADECLARED3.3LOWCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R
3.0CNADECLARED3.3LOWCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R
2.0[email protected]Secondary1.7AV:L/AC:L/Au:S/C:N/I:N/A:P
2.0CNADECLARED1.7AV:L/AC:L/Au:S/C:N/I:N/A:P/E:POC/RL:ND/RC:UR

CVSS v4.0 Breakdown

Attack Vector
Local
Attack Complexity
Low
Attack Requirements
None
Privileges Required
Low
User Interaction
None
Confidentiality
None
Integrity
None
Availability
Low
Sub Conf.
None
Sub Integrity
None
Sub Availability
None

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

CVSS v3.0 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Webassembly Wabt All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA WebAssembly Wabt affected 1.0.0 Not specified
CNA WebAssembly Wabt affected 1.0.1 Not specified
CNA WebAssembly Wabt affected 1.0.2 Not specified
CNA WebAssembly Wabt affected 1.0.3 Not specified
CNA WebAssembly Wabt affected 1.0.4 Not specified
CNA WebAssembly Wabt affected 1.0.5 Not specified
CNA WebAssembly Wabt affected 1.0.6 Not specified
CNA WebAssembly Wabt affected 1.0.7 Not specified
CNA WebAssembly Wabt affected 1.0.8 Not specified
CNA WebAssembly Wabt affected 1.0.9 Not specified
CNA WebAssembly Wabt affected 1.0.10 Not specified
CNA WebAssembly Wabt affected 1.0.11 Not specified
CNA WebAssembly Wabt affected 1.0.12 Not specified
CNA WebAssembly Wabt affected 1.0.13 Not specified
CNA WebAssembly Wabt affected 1.0.14 Not specified
CNA WebAssembly Wabt affected 1.0.15 Not specified
CNA WebAssembly Wabt affected 1.0.16 Not specified
CNA WebAssembly Wabt affected 1.0.17 Not specified
CNA WebAssembly Wabt affected 1.0.18 Not specified
CNA WebAssembly Wabt affected 1.0.19 Not specified
CNA WebAssembly Wabt affected 1.0.20 Not specified
CNA WebAssembly Wabt affected 1.0.21 Not specified
CNA WebAssembly Wabt affected 1.0.22 Not specified
CNA WebAssembly Wabt affected 1.0.23 Not specified
CNA WebAssembly Wabt affected 1.0.24 Not specified
CNA WebAssembly Wabt affected 1.0.25 Not specified
CNA WebAssembly Wabt affected 1.0.26 Not specified
CNA WebAssembly Wabt affected 1.0.27 Not specified
CNA WebAssembly Wabt affected 1.0.28 Not specified
CNA WebAssembly Wabt affected 1.0.29 Not specified
CNA WebAssembly Wabt affected 1.0.30 Not specified
CNA WebAssembly Wabt affected 1.0.31 Not specified
CNA WebAssembly Wabt affected 1.0.32 Not specified
CNA WebAssembly Wabt affected 1.0.33 Not specified
CNA WebAssembly Wabt affected 1.0.34 Not specified
CNA WebAssembly Wabt affected 1.0.35 Not specified
CNA WebAssembly Wabt affected 1.0.36 Not specified
CNA WebAssembly Wabt affected 1.0.37 Not specified

References

ReferenceSourceLinkTags
vuldb.com [email protected] vuldb.com Third Party Advisory, VDB Entry
github.com/user-attachments/files/19529411/wabt_crash.txt [email protected] github.com Exploit
vuldb.com [email protected] vuldb.com Permissions Required, VDB Entry
github.com/WebAssembly/wabt/issues/2574 134c704f-9b21-4f2e-91b3-4a467353bcc0 github.com Exploit, Issue Tracking, Vendor Advisory
vuldb.com [email protected] vuldb.com Third Party Advisory, VDB Entry
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: JJLeo (VulDB User) (en)

Additional Advisory Data

SourceTimeEvent
CNA2025-06-19T00:00:00.000ZAdvisory disclosed
CNA2025-06-19T02:00:00.000ZVulDB entry created
CNA2025-06-19T08:44:00.000ZVulDB entry last update
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