Null Pointer Dereference Vulnerability in WebAssembly Wabt from WebAssembly
CVE-2025-3122

2.3LOW

Key Information:

Vendor

Webassembly

Status
Wabt
Vendor
CVE Published:
2 April 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-3122?

A vulnerability has been identified in WebAssembly's Wabt 1.0.36 that affects the BinaryReaderInterp::BeginFunctionBody function. This flaw leads to a null pointer dereference, which could potentially be exploited by remote attackers. While the complexity of successfully executing an attack is considered high, the vulnerability has been publicly disclosed, raising concerns regarding its potential exploitation. Users and organizations leveraging Wabt are encouraged to implement protective measures promptly.

Affected Version(s)

wabt 1.0.36

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2025-3122 - Proof of Concept

References

https://vuldb.com/?id.303013
vdb-entrytechnical-description
https://vuldb.com/?ctiid.303013
signaturepermissions-required
https://vuldb.com/?submit.525091
third-party-advisory

CVSS V4

Score:
2.3
Severity:
LOW
Confidentiality:
None
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
High
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

JSON
.
CVE-2025-3122 : Null Pointer Dereference Vulnerability in WebAssembly Wabt from WebAssembly