CVE-2025-64713
highpriority · track · 30EPSS 0.004 · 29 %ileDEEUUSEPSS · scored 2026-10-27
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 capacity and a GET_GLOBAL(I32) opcode is encountered, frame_ref_bottom is expanded but frame_offset_bottom may not be. If this is immediately followed by an if opcode that triggers preserve_local_for_block, the function traverses arrays using stack_cell_num as the upper bound, causing out-of-bounds access to frame_offset_bottom since it wasn't expanded to match the increased stack_cell_num. This issue has been patched in version 2.4.4.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5.1–7.4
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (4)
Products and version ranges known to be affected.
- bytecodealliance webassembly micro runtime< 2.4.4nvdUScpe:2.3:a:bytecodealliance:webassembly_micro_runtime:*:*:*:*:*:*:*:*
advisories (1)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2026-2437Oracle Communications: Mehrere SchwachstellenDeutsch2026-07-21csaf · cert_bundDE
Ein entfernter, anonymer oder authentisierter Angreifer kann mehrere Schwachstellen in Oracle Communications ausnutzen, um die Vertraulichkeit, Integrität und Verfügbarkeit zu gefährden.
also known as (2)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (7)
External citations — patches, advisories, analysis.
- https://github.com/bytecodealliance/wasm-micro-runtime/releasesPatchcnnvd
- https://github.com/bytecodealliance/wasm-micro-runtime/releases/tag/WAMR-2.4.4cnnvd
- https://github.com/bytecodealliance/wasm-micro-runtime/security/advisories/GHSA-gvx3-gg3x-rjcxcnnvd
- https://github.com/bytecodealliance/wasm-micro-runtime/releases/tag/WAMR-2.4.4enisa_euvd
- https://github.com/bytecodealliance/wasm-micro-runtime/security/advisories/GHSA-gvx3-gg3x-rjcxenisa_euvd
- https://github.com/bytecodealliance/wasm-micro-runtime/releases/tag/WAMR-2.4.4Release Notesnvd
- https://github.com/bytecodealliance/wasm-micro-runtime/security/advisories/GHSA-gvx3-gg3x-rjcxExploitVendor Advisorynvd
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