# wasm3 (crates.io) vulnerabilities

Source: https://junglewise.ai/threats/technologies/wasm3  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 9 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/technologies/wasm3.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 5 vulnerabilities in wasm3 (crates.io): 0 in the last 7 days and 0 in the last 90 days, 1 of them critical and 0 exploited in the wild. The most recent, CVE-2025-6272, was published on 19 June 2025.

## Counts

- Last 7 days: 0
- Last 30 days: 0
- Last 90 days: 0
- All time: 5 (1 critical, 0 exploited in the wild)

## About wasm3 (crates.io)

A fast WebAssembly interpreter written in C.

## Latest wasm3 (crates.io) vulnerabilities

- [CVE-2025-6272: wasm3 and pywasm3 out-of-bounds write in MarkSlotAllocated](https://junglewise.ai/threats/cve-2025-6272-wasm3-and-pywasm3-out-of-bounds-write-in-markslotallocated) (medium, CVSS 4, published 19 Jun 2025)
- [CVE-2024-27530: wasm3 pywasm3 use-after-free in ForEachModule](https://junglewise.ai/threats/cve-2024-27530-wasm3-pywasm3-use-after-free-in-foreachmodule) (high, CVSS 8.4, published 9 Nov 2024)
- [CVE-2024-27528: wasm3 pywasm3 out-of-bounds read in m3_exec.h](https://junglewise.ai/threats/cve-2024-27528-wasm3-pywasm3-out-of-bounds-read-in-m3-exec-h) (high, CVSS 8.4, published 9 Nov 2024)
- [CVE-2024-27529: Wasm3 uncontrolled memory allocation in Read_utf8](https://junglewise.ai/threats/cve-2024-27529-wasm3-uncontrolled-memory-allocation-in-read-utf8) (high, CVSS 8.4, published 9 Nov 2024)
- [CVE-2024-34249: wasm3 heap buffer overflow in DeallocateSlot](https://junglewise.ai/threats/cve-2024-34249-wasm3-heap-buffer-overflow-in-deallocateslot) (critical, CVSS 9.8, published 6 May 2024)

## Most severe wasm3 (crates.io) vulnerabilities

- [CVE-2024-34249: wasm3 heap buffer overflow in DeallocateSlot](https://junglewise.ai/threats/cve-2024-34249-wasm3-heap-buffer-overflow-in-deallocateslot) (critical, CVSS 9.8, published 6 May 2024)
- [CVE-2024-27529: Wasm3 uncontrolled memory allocation in Read_utf8](https://junglewise.ai/threats/cve-2024-27529-wasm3-uncontrolled-memory-allocation-in-read-utf8) (high, CVSS 8.4, published 9 Nov 2024)
- [CVE-2024-27528: wasm3 pywasm3 out-of-bounds read in m3_exec.h](https://junglewise.ai/threats/cve-2024-27528-wasm3-pywasm3-out-of-bounds-read-in-m3-exec-h) (high, CVSS 8.4, published 9 Nov 2024)
- [CVE-2024-27530: wasm3 pywasm3 use-after-free in ForEachModule](https://junglewise.ai/threats/cve-2024-27530-wasm3-pywasm3-use-after-free-in-foreachmodule) (high, CVSS 8.4, published 9 Nov 2024)
- [CVE-2025-6272: wasm3 and pywasm3 out-of-bounds write in MarkSlotAllocated](https://junglewise.ai/threats/cve-2025-6272-wasm3-and-pywasm3-out-of-bounds-write-in-markslotallocated) (medium, CVSS 4, published 19 Jun 2025)

## Vulnerabilities per week

Nothing was published in the last eight weeks.

| Week of | Vulns | Critical | Exploited |
| --- | --- | --- | --- |
| 17 Aug 2026 | 0 | 0 | 0 |
| 24 Aug 2026 | 0 | 0 | 0 |
| 31 Aug 2026 | 0 | 0 | 0 |
| 7 Sep 2026 | 0 | 0 | 0 |
| 14 Sep 2026 | 0 | 0 | 0 |
| 21 Sep 2026 | 0 | 0 | 0 |
| 28 Sep 2026 | 0 | 0 | 0 |
| 5 Oct 2026 | 0 | 0 | 0 |
| 12 Oct 2026 | 0 | 0 | 0 |
| 19 Oct 2026 | 0 | 0 | 0 |
| 26 Oct 2026 | 0 | 0 | 0 |
| 2 Nov 2026 | 0 | 0 | 0 |
| 9 Nov 2026 | 0 | 0 | 0 |

## Other crates.io technologies

- [surrealdb (crates.io)](https://junglewise.ai/threats/technologies/surrealdb): 83 vulnerabilities
- [wasmtime (crates.io)](https://junglewise.ai/threats/technologies/wasmtime): 67 vulnerabilities
- [deno (crates.io)](https://junglewise.ai/threats/technologies/deno): 39 vulnerabilities
- [zebrad (crates.io)](https://junglewise.ai/threats/technologies/zebrad): 27 vulnerabilities
- [russh (crates.io)](https://junglewise.ai/threats/technologies/crates-io-russh): 26 vulnerabilities
- [openssl-src (crates.io)](https://junglewise.ai/threats/technologies/openssl-src): 26 vulnerabilities
- [openssl (crates.io)](https://junglewise.ai/threats/technologies/crates-io-openssl): 25 vulnerabilities
- [rustfs (crates.io)](https://junglewise.ai/threats/technologies/rustfs): 25 vulnerabilities
- [coreutils (crates.io)](https://junglewise.ai/threats/technologies/crates-io-coreutils): 21 vulnerabilities
- [ckb (crates.io)](https://junglewise.ai/threats/technologies/ckb): 19 vulnerabilities
- [apollo-router (crates.io)](https://junglewise.ai/threats/technologies/apollo-router): 13 vulnerabilities
- [deepseek-tui (crates.io)](https://junglewise.ai/threats/technologies/deepseek-tui): 13 vulnerabilities

## Sources

NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "wasm3 (crates.io) vulnerabilities", https://junglewise.ai/threats/technologies/wasm3, 9 November 2026.