CVE-2025-14956

A vulnerability was determined in WebAssembly Binaryen up to 125. Affected by this issue is the function WasmBinaryReader::readExport of the file src/wasm/wasm-binary.cpp. This manipulation causes heap-based buffer overflow. It is possible to launch the attack on the local host. The exploit has been publicly disclosed and may be utilized. Patch name: 4f52bff8c4075b5630422f902dd92a0af2c9f398. It is recommended to apply a patch to fix this issue.
Configurations

Configuration 1 (hide)

cpe:2.3:a:webassembly:binaryen:*:*:*:*:*:*:*:*

History

24 Feb 2026, 06:16

Type Values Removed Values Added
References
  • () https://github.com/WebAssembly/binaryen/ -

30 Dec 2025, 18:31

Type Values Removed Values Added
CPE cpe:2.3:a:webassembly:binaryen:*:*:*:*:*:*:*:*
CWE CWE-125
First Time Webassembly
Webassembly binaryen
References () https://github.com/WebAssembly/binaryen/commit/4f52bff8c4075b5630422f902dd92a0af2c9f398 - () https://github.com/WebAssembly/binaryen/commit/4f52bff8c4075b5630422f902dd92a0af2c9f398 - Patch
References () https://github.com/WebAssembly/binaryen/issues/8089 - () https://github.com/WebAssembly/binaryen/issues/8089 - Exploit, Issue Tracking, Third Party Advisory
References () https://github.com/WebAssembly/binaryen/pull/8092 - () https://github.com/WebAssembly/binaryen/pull/8092 - Issue Tracking
References () https://github.com/oneafter/1204/blob/main/hbf - () https://github.com/oneafter/1204/blob/main/hbf - Not Applicable
References () https://vuldb.com/?ctiid.337592 - () https://vuldb.com/?ctiid.337592 - Permissions Required, VDB Entry
References () https://vuldb.com/?id.337592 - () https://vuldb.com/?id.337592 - Third Party Advisory, VDB Entry
References () https://vuldb.com/?submit.717315 - () https://vuldb.com/?submit.717315 - Exploit, Third Party Advisory, VDB Entry

19 Dec 2025, 17:15

Type Values Removed Values Added
New CVE

Information

Published : 2025-12-19 17:15

Updated : 2026-02-24 06:16


NVD link : CVE-2025-14956

Mitre link : CVE-2025-14956

CVE.ORG link : CVE-2025-14956


JSON object : View

Products Affected

webassembly

  • binaryen
CWE
CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

CWE-122

Heap-based Buffer Overflow

CWE-125

Out-of-bounds Read