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TI-2025-14056 Aliases CVE-2025-15412GHSA-q9fv-9fr9-69p3

WebAssembly wabt wasm-decompile VarName out-of-bounds

Priority MEDIUM 55CWE-119Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
Low · Low · Low
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

A security vulnerability has been detected in WebAssembly wabt up to 1.0.39. This issue affects the function wabt::Decompiler::VarName of the file /src/repro/wabt/bin/wasm-decompile of the component wasm-decompile. Such manipulation leads to out-of-bounds read. Local access is required to approach this attack. The exploit has been disclosed publicly and may be used. Unfortunately, the project has no active maintainer at the moment. In a reply to the issue report somebody recommended to the researcher to provide a PR himself.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00208 11th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD and the CNA
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
WebAssemblywabt1.0.0; 1.0.1; 1.0.2; 1.0.3; 1.0.4; 1.0.5; 1.0.6; 1.0.7; 1.0.8; 1.0.9; 1.0.10; 1.0.11; 1.0.12; 1.0.13; 1.0.14; 1.0.15; 1.0.16; 1.0.17; 1.0.18; 1.0.19; 1.0.20; 1.0.21; 1.0.22; 1.0.23; 1.0.24; 1.0.25; 1.0.26; 1.0.27; 1.0.28; 1.0.29; 1.0.30; 1.0.31; 1.0.32; 1.0.33; 1.0.34; 1.0.35; 1.0.36; 1.0.37; 1.0.38; 1.0.39—No fix listedCNA
  • wabt VendorWebAssembly Affected 1.0.0; 1.0.1; 1.0.2; 1.0.3; 1.0.4; 1.0.5; 1.0.6; 1.0.7; 1.0.8; 1.0.9; 1.0.10; 1.0.11; 1.0.12; 1.0.13; 1.0.14; 1.0.15; 1.0.16; 1.0.17; 1.0.18; 1.0.19; 1.0.20; 1.0.21; 1.0.22; 1.0.23; 1.0.24; 1.0.25; 1.0.26; 1.0.27; 1.0.28; 1.0.29; 1.0.30; 1.0.31; 1.0.32; 1.0.33; 1.0.34; 1.0.35; 1.0.36; 1.0.37; 1.0.38; 1.0.39 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:webassembly:wabt:*:*:*:*:*:*:*:*up to 1.0.39VulnerableWebAssembly
  • cpe:2.3:a:webassembly:wabt:*:*:*:*:*:*:*:* Versions up to 1.0.39 Vulnerable ·WebAssembly

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-15412
  2. 2026-10-03 Alias added: GHSA-q9fv-9fr9-69p3

References

Exploit 2

Other 1

  • TI-2022-21123 wasm-interp v1.0.29 was discovered to contain an out-of-bounds read via the component… CVSS 3.1HIGH 7.1
  • TI-2022-21125 wasm-interp v1.0.29 was discovered to contain an out-of-bounds read via the component… CVSS 3.1HIGH 7.1
  • TI-2023-11935 WebAssembly v1.0.29 was discovered to contain a segmentation fault via the component wabt::Decompiler::WrapChild. CVSS 3.1MEDIUM 5.5
  • TI-2022-21126 wasm2c v1.0.29 was discovered to contain an abort in CWriter::Write. CVSS 3.1MEDIUM 5.5
  • TI-2025-02083 WebAssembly wabt Malformed File binary-reader-interp.cc OnExport heap-based overflow CVSS 4.0MEDIUM 5.3
  • TI-2025-14055 WebAssembly wabt wasm-decompile InsertNode memory corruption CVSS 4.0MEDIUM 4.8
See all 10 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences