Low severity · published Jun 19, 2025
CVE-2025-6275
WebAssembly wabt binary-reader-interp.cc GetFuncOffset use after free
3.3
CVSS
0.2%
EPSS
No
On KEV
Description
A vulnerability was found in WebAssembly wabt up to 1.0.37. It has been declared as problematic. Affected by this vulnerability is the function GetFuncOffset of the file src/interp/binary-reader-interp.cc. The manipulation leads to use after free. It is possible to launch the attack on the local host. The exploit has been disclosed to the public and may be used. A similar issue reported during the same timeframe was disputed by the code maintainer because it might not affect "real world wasm programs". Therefore, this entry might get disputed as well in the future.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 16% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WA
wabt · WebAssembly
1.0.0; 1.0.1; 1.0.2; 1.0.3; 1.0.4; 1.0.5; +32 more · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-6275
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-6275
Exploit
https://github.com/WebAssembly/wabt/issues/2614
Exploit
https://github.com/user-attachments/files/20623626/wabt_crash_5.txt
Permissions Required
https://vuldb.com/?ctiid.313279
Third Party Advisory
https://vuldb.com/?id.313279
Third Party Advisory
https://vuldb.com/?submit.593017
More from wabt
8.8
CVE-2025-2368
WebAssembly wabt Malformed File binary-reader-interp.cc OnExport heap-based overflow
7.8
CVE-2025-15412
WebAssembly wabt wasm-decompile VarName out-of-bounds
7.8
CVE-2025-15411
WebAssembly wabt wasm-decompile InsertNode memory corruption
7.1
CVE-2026-90648
wasm2c in WebAssembly wabt through 1.0.41 allows sandbox escape in some situations that primarily involve 32-bit platforms, aka a "table flip" attack
7.1
CVE-2022-43280
wasm-interp v1.0.29 was discovered to contain an out-of-bounds read via the component OnReturnCallExpr->GetReturnCallDropKeepCount