CVE-2025-58749

LOW EPSS 26.3%
Published Sep 16, 20259mo ago · Modified Jun 17, 20262w ago
2.1 CVSS 4.0
Low
Find Similar
Published Sep 16, 2025 9mo ago
Last Modified Jun 17, 2026 2w ago

Description

WebAssembly Micro Runtime (WAMR) is a lightweight standalone WebAssembly (Wasm) runtime. In WAMR versions prior to 2.4.2, when running in LLVM-JIT mode, the runtime cannot exit normally when executing WebAssembly programs containing a memory.fill instruction where the first operand (memory address pointer) is greater than or equal to 2147483648 bytes (2GiB). This causes the runtime to hang in release builds or crash in debug builds due to accessing an invalid pointer. The issue does not occur in FAST-JIT mode or other runtime tools. This has been fixed in version 2.4.2.

CVSS Details

Base Score
2.1
Exploitability
—
Impact
—
Vector string
CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Local
Attack Complexity Low
Privileges Required None
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
26.3% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 2

CWE-190 Integer Overflow or Wraparound Numeric Error
CWE-822

Affected Products 1

VendorProductVersionRange
bytecodealliancewebassembly_micro_runtime* <2.4.2

References 2

  • github.com https://github.com/bytecodealliance/wasm-micro-runtime/commit/95f506a6e77d3ac7588eac7263f95558edfa7f3b
    Patch
  • github.com https://github.com/bytecodealliance/wasm-micro-runtime/security/advisories/GHSA-xj5p-r8jq-pw47
    ExploitThird Party Advisory

Remediation

  • github.com https://github.com/bytecodealliance/wasm-micro-runtime/commit/95f506a6e77d3ac7588eac7263f95558edfa7f3b
    Patch