# CVE-2024-27527: PYSEC-2024-303 - wasm3 139076a is vulnerable to Denial of Service (DoS).

Source: https://junglewise.ai/threats/cve-2024-27527-pysec-2024-303-wasm3-139076a-is-vulnerable-to-denial-of-service  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2024-11-08  
License: CC BY 4.0 with a link back

CVE-2024-27527 · Severity: low · CVSS 3.1 · Published 2024-11-08

wasm3 139076a is vulnerable to Denial of Service (DoS).

Technologies: [pywasm3 (PyPI)](https://junglewise.ai/threats/technologies/pywasm3). Vendors: [PyPI](https://junglewise.ai/threats/vendors/pypi).

## Quick answers

**Is CVE-2024-27527 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2024-27527 being exploited in the wild.

**How severe is CVE-2024-27527?** Low severity, with a CVSS score of 3.1, published 8 November 2024.

**Which products and versions are affected?** pywasm3 (PyPI) ECOSYSTEM:introduced=0,last_affected=139076a.

**Is there a fix for CVE-2024-27527?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**Am I affected by CVE-2024-27527?** Check whether you run pywasm3 (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Affected products

- pywasm3 (PyPI) ECOSYSTEM:introduced=0,last_affected=139076a

## Identifiers

- CVE-2024-27527
- PYSEC-2024-303

## Related threats

- [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)
- [wasm3 pywasm3 use-after-free in ForEachModule](https://junglewise.ai/threats/cve-2024-27530-wasm3-pywasm3-use-after-free-in-foreachmodule)
- [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)
- [Wasm3 uncontrolled memory allocation in Read_utf8](https://junglewise.ai/threats/cve-2024-27529-wasm3-uncontrolled-memory-allocation-in-read-utf8)
- [PYSEC-2024-307 - wasm3 v0.5.0 was discovered to contain an out-of-bound memory read which leads to segmentation fault…](https://junglewise.ai/threats/cve-2024-34246-pysec-2024-307-wasm3-v0-5-0-was-discovered-to-contain-an-out-of)