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CVE-2025-15411WebAssembly wabt wasm-decompile InsertNode memory corruption

Description

A weakness has been identified in WebAssembly wabt up to 1.0.39. This vulnerability affects the function wabt::AST::InsertNode of the file /src/repro/wabt/bin/wasm-decompile of the component wasm-decompile. This manipulation causes memory corruption. It is possible to launch the attack on the local host. The exploit has been made available to the public and could be used for attacks. 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.

Public exploit

An exploit or proof of concept is public: anyone can try it against an unpatched system. A reference of the record is tagged as an exploit. CISA's SSVC rates its exploitation: a proof of concept is public.

Show the exploits1

References tagged exploit1 reference

Timeline

  1. ID reserved

    By VulDB

  2. Published

  3. · 53 days later

    Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2025-15411, by who scored it
Scored byCVSSScoreVector
VulDBCNA (assigner)4.0Medium4.8CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
VulDBCNA (assigner)3.1Medium5.3CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
VulDBCNA (assigner)3.0Medium5.3CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
VulDBCNA (assigner)2.0Medium4.3AV:L/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR
NVDNVD · Modified4.0Low1.9CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/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
EPSS (exploitation in 30 days)
0.21% · top 89% of all CVEs (12 Nov 2026)
CISA SSVC
Exploitation: poc · Automatable: no · Technical impact: partial
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.8.

Affected products

  • WebAssembly · wabt

    • affected 1.0.0
    • affected 1.0.1
    • affected 1.0.2
    • affected 1.0.3
    • affected 1.0.4
    • affected 1.0.5
    • affected 1.0.6
    • affected 1.0.7
    • affected 1.0.8
    • affected 1.0.9
    • affected 1.0.10
    • affected 1.0.11
    • affected 1.0.12
    • affected 1.0.13
    • affected 1.0.14
    • affected 1.0.15
    • affected 1.0.16
    • affected 1.0.17
    • affected 1.0.18
    • affected 1.0.19
    • affected 1.0.20
    • affected 1.0.21
    • affected 1.0.22
    • affected 1.0.23
    • affected 1.0.24
    • affected 1.0.25
    • affected 1.0.26
    • affected 1.0.27
    • affected 1.0.28
    • affected 1.0.29
    • affected 1.0.30
    • affected 1.0.31
    • affected 1.0.32
    • affected 1.0.33
    • affected 1.0.34
    • affected 1.0.35
    • affected 1.0.36
    • affected 1.0.37
    • affected 1.0.38
    • affected 1.0.39

References

References7

Sources

The same CVE in the primary databases and aggregators, to check against.

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CVE-2025-15411 badge
[![CVE-2025-15411](https://cveledger.app/badge/CVE-2025-15411.svg)](https://cveledger.app/cve/CVE-2025-15411)

Record last updated .