CVE-2025-6273
A vulnerability was found in WebAssembly wabt up to 1.0.37 and classified as problematic.
Does this matter?
Lower severity and a low EPSS score (0.24%). Track it; it rarely justifies an emergency change on its own.
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".
- CVSS 4.0
- 1.9 LOWCVSS: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/M
- EPSS
- 0.24% probability · 14th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-617
- Affected
- webassembly/wabt
- Source
- cna@vuldb.com
EPSS 0.2% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://github.com/WebAssembly/wabt/issues/2574Exploit, Issue Tracking, Vendor Advisory
- https://github.com/user-attachments/files/19529411/wabt_crash.txtExploit
- https://vuldb.com/?ctiid.313277Permissions Required, VDB Entry
- https://vuldb.com/?id.313277Third Party Advisory, VDB Entry
- https://vuldb.com/?submit.593010Third Party Advisory, VDB Entry
- https://github.com/WebAssembly/wabt/issues/2574Exploit, Issue Tracking, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.