CVE-2025-14956 is a heap-based buffer overflow vulnerability affecting WebAssembly Binaryen versions up to 125, specifically within the WasmBinaryReader::readExport function in src/wasm/wasm-binary.cpp. This flaw carries a CVSS score of 7.1 (HIGH), indicating a local attack vector with low complexity, potentially leading to high impact on confidentiality and availability. While a patch (4f52bff8c4075b5630422f902dd92a0af2c9f398) is available, the exploit has been publicly disclosed, though there is currently no evidence of active exploitation, nor are there Metasploit or ExploitDB modules, and community discussion is minimal.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 125CPE matchmatch criteria | cpe:2.3:a:webassembly:binaryen:*:*:*:*:*:*:*:* |
CVSS version used by this source: 4.0
CVSS: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
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.