WebAssembly Micro Runtime (WAMR) is a lightweight standalone WebAssembly (Wasm) runtime. Prior to version 2.4.4, an out-of-bounds array access issue exists in WAMR's fast interpreter mode during WASM bytecode loading. When frame_ref_bottom and frame_offset_bottom arrays are at ca...
Product
bytecodealliance webassembly micro runtime vulnerabilities
11 published CVES affecting bytecodealliance webassembly micro runtime, from public sources (CVE.org, NVD, CISA KEV, FIRST EPSS, OSV).
- Total
- 11
- Critical
- 0
- High
- 6
- Medium
- 4
- Low
- 1
- Unscored
- 0
- CISA KEV
- 0
Latest bytecodealliance webassembly micro runtime CVEs
Newest publication first
-
HighCVSS 7.4 EPSS 0.35%
-
MediumCVSS 5.5 EPSS 0.20%
WebAssembly Micro Runtime (WAMR) is a lightweight standalone WebAssembly (Wasm) runtime. Prior to version 2.4.4, WAMR is susceptible to a segmentation fault in v128.store instruction. This issue has been patched in version 2.4.4.
-
CVE-2025-58749 WAMR runtime hangs or crashes with large memory.fill addresses in LLVM-JIT mode
PublishedLowCVSS 2.1 EPSS 0.37%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 opera...
-
MediumCVSS 6.9 EPSS 0.72%
The WebAssembly Micro Runtime's (WAMR) iwasm package is the executable binary built with WAMR VMcore which supports WebAssembly System Interface (WASI) and command line interface. In versions 2.4.0 and below, iwasm uses --addr-pool with an IPv4 address that lacks a subnet mask, a...
-
CVE-2025-43853 iwasm vulnerable to filesystem sandbox escape with symlink when using uvwasi feature
PublishedHighCVSS 7.0 EPSS 0.29%The WebAssembly Micro Runtime's (WAMR) iwasm package is the executable binary built with WAMR VMcore which supports WebAssembly System Interface (WASI) and command line interface. Anyone running WAMR up to and including version 2.2.0 or WAMR built with libc-uvwasi on Windows is a...
-
HighCVSS 7.8 EPSS 0.66%
An issue in bytecodealliance wasm-micro-runtime before v.b3f728c and fixed in commit 06df58f allows a remote attacker to escalate privileges via a crafted file to the check_was_abi_compatibility function.
-
HighCVSS 7.5 EPSS 0.51%
wasm-micro-runtime (aka WebAssembly Micro Runtime or WAMR) 06df58f is vulnerable to NULL Pointer Dereference in function `block_type_get_result_types.
-
MediumCVSS 6.2 EPSS 0.33%
A heap buffer overflow vulnerability was discovered in Bytecode Alliance wasm-micro-runtime v2.0.0 which allows a remote attacker to cause at least a denial of service via the "wasm_loader_check_br" function in core/iwasm/interpreter/wasm_loader.c.
-
HighCVSS 7.5 EPSS 0.76%
An out-of-bound memory read vulnerability was discovered in Bytecode Alliance wasm-micro-runtime v2.0.0 which allows a remote attacker to cause a denial of service via the "block_type_get_arity" function in core/iwasm/interpreter/wasm.h.
-
MediumCVSS 5.5 EPSS 0.32%
Bytecode Alliance wasm-micro-runtime (aka WebAssembly Micro Runtime or WAMR) before 1.3.0 can have an "double free or corruption" error for a valid WebAssembly module because push_pop_frame_ref_offset is mishandled.
-
HighCVSS 7.5 EPSS 1.0%
An heap overflow vulnerability was discovered in Bytecode alliance wasm-micro-runtime v.1.2.3 allows a remote attacker to cause a denial of service via the wasm_loader_prepare_bytecode function in core/iwasm/interpreter/wasm_loader.c.
Sources: CVE.org, NVD, CISA KEV, FIRST EPSS, OSV and public exploit-reference metadata. Product matching comes from the published CVE records. A proof-of-concept means public code exists; it is not evidence of exploitation.