Description
A 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".
References (5)
Core 5
Core References
Third Party Advisory, VDB Entry vdb-entry
technical-description
https://vuldb.com/?id.313277
Permissions Required, VDB Entry signature
permissions-required
https://vuldb.com/?ctiid.313277
Third Party Advisory, VDB Entry third-party-advisory
https://vuldb.com/?submit.593010
Exploit, Issue Tracking, Vendor Advisory issue-tracking
https://github.com/WebAssembly/wabt/issues/2574
Scores
CVSS v3
3.3
EPSS
0.0019
EPSS Percentile
8.6%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-617
Status
published
Products (1)
webassembly/wabt
< 1.0.37
Published
Jun 19, 2025
Tracked Since
Feb 18, 2026