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TI-2023-11934 Aliases CVE-2023-27117GHSA-85v6-77qr-hmv2

WebAssembly v1.0.29 was discovered to contain a heap overflow via the component component wabt::Node::operator.

Priority HIGH 69CWE-787Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.

Summary

WebAssembly v1.0.29 was discovered to contain a heap overflow via the component component wabt::Node::operator.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00318 24th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:webassembly:webassembly:1.0.29:*:*:*:*:*:*:*1.0.29VulnerableWebAssembly
  • cpe:2.3:a:webassembly:webassembly:1.0.29:*:*:*:*:*:*:* Versions 1.0.29 Vulnerable ·WebAssembly

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-27117
  2. 2026-10-03 Alias added: GHSA-85v6-77qr-hmv2

References

Exploit 1

  • TI-2023-11933 WebAssembly v1.0.29 discovered to contain an abort in CWriter::MangleType. CVSS 3.1MEDIUM 5.5
  • TI-2023-11932 WebAssembly v1.0.29 was discovered to contain a segmentation fault via the component wabt::cat_compute_size. CVSS 3.1MEDIUM 5.5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences