CVE-2025-6273

low-risk
Published 2025-06-19

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".

Do I need to act?

-
0.04% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
3
CVSS 3.3/10 Low
LOCAL / LOW complexity

Affected Products (1)

Wabt

Affected Vendors

Webassembly

References (6)

Exploit https://github.com/WebAssembly/wabt/issues/2574
Exploit https://github.com/user-attachments/files/19529411/wabt_crash.txt
Permissions Required https://vuldb.com/?ctiid.313277
Third Party Advisory https://vuldb.com/?id.313277
Third Party Advisory https://vuldb.com/?submit.593010
Exploit https://github.com/WebAssembly/wabt/issues/2574
18
/ 100
low-risk
Severity 13/34 · Low
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal