PT-2026-1028 · Unknown+1 · Webassembly Wabt+1

Oneafter · Published 2026-01-01 · Updated 2026-01-06 · CVE-2025-15412

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions WebAssembly wabt versions up to 1.0.39

Description A security issue exists in WebAssembly wabt, specifically within the wabt::Decompiler::VarName function located in the /src/repro/wabt/bin/wasm-decompile file of the wasm-decompile component. This can lead to an out-of-bounds read. Local access is required for exploitation. The exploit has been publicly disclosed. The project currently lacks an active maintainer.

Recommendations Versions prior to 1.0.39 should not be used. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Buffer Overflow

Out of bounds Read

Weakness Enumeration

CWE-119

CWE-125

Related Identifiers

CVE-2025-15412

Affected Products

Debian

Webassembly Wabt

References · 18

• 🔥 https://github.com/oneafter/1208/blob/main/af1 · Exploit
• https://github.com/WebAssembly/wabt/issues/2678 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2025-15412 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2025-15412 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2025-15412 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2025-15412 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-15412 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-15412 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2025-15412 · Vendor Advisory
• https://github.com/WebAssembly/wabt · Note
• https://twitter.com/CVEnew/status/2006861487835431213 · Twitter Post
• https://twitter.com/VulmonFeeds/status/2006847718258315347 · Twitter Post
• https://vuldb.com/?id.339333 · Note
• https://vuldb.com/?submit.719826 · Note
• https://t.me/cveNotify/147844 · Telegram Post