wasm3 0.5.0 source/m3_compile.c MarkSlotAllocated out-of-bounds write

CVSS Meta Temp Score
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CTI Interest Score
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3.1$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in wasm3 0.5.0. The impacted element is the function MarkSlotAllocated of the file source/m3_compile.c. Executing a manipulation can lead to out-of-bounds write. This vulnerability is handled as CVE-2025-6272. It is possible to launch the attack on the local host. Additionally, an exploit exists.

Detailsinfo

A vulnerability has been found in wasm3 0.5.0 and classified as problematic. This vulnerability affects the function MarkSlotAllocated of the file source/m3_compile.c. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. The CWE definition for the vulnerability is CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect availability.

The advisory is shared for download at github.com. This vulnerability was named CVE-2025-6272. The exploitation appears to be easy. The attack needs to be approached locally. Technical details and also a public exploit are known.

It is possible to download the exploit at github.com. It is declared as proof-of-concept.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-18691). Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

Version

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 3.3
VulDB Meta Temp Score: 3.1

VulDB Base Score: 3.3
VulDB Temp Score: 3.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 3.3
CNA Vector: 🔒

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

06/19/2025 Advisory disclosed
06/19/2025 +0 days VulDB entry created
06/24/2025 +5 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: github.com
Status: Not defined

CVE: CVE-2025-6272 (🔒)
GCVE (CVE): GCVE-0-2025-6272
GCVE (VulDB): GCVE-100-313276
EUVD: 🔒
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 06/19/2025 08:30
Updated: 06/24/2025 05:19
Changes: 06/19/2025 08:30 (54), 06/19/2025 20:40 (30), 06/19/2025 22:31 (1), 06/24/2025 05:19 (1)
Complete: 🔍
Submitter: JJLeo
Cache ID: 216:672:103

Submitinfo

Accepted

  • Submit #593008: wasm3 wasm3 v0.5.0 (commit 79d412e) Out-of-bounds Write (by JJLeo)

Once again VulDB remains the best source for vulnerability data.

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