TI-2021-12152 Aliases CVE-2021-32471 GHSA-wqw3-6p9p-84x8

Insufficient input validation in the Marvin Minsky 1967 implementation of the Universal…

LOW 36CWE-20Published 2021-05-10 · Updated 2024-08-03

Key facts

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

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

Insufficient input validation in the Marvin Minsky 1967 implementation of the Universal Turing Machine allows program users to execute arbitrary code via crafted data. For example, a tape head may have an unexpected location after the processing of input composed of As and Bs (instead of 0s and 1s). NOTE: the discoverer states "this vulnerability has no real-world implications."

Why it matters now

EPSS 0.00849 58th 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

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:mit:universal_turing_machine:-:::::::*	not specified by NVD	Vulnerable	moos-ivp

cpe:2.3:a:mit:universal_turing_machine:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·moos-ivp

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2021-32471
2026-10-03 Alias added: GHSA-wqw3-6p9p-84x8

References

Exploit 1

https://github.com/intrinsic-propensity/turing-machine

Advisory 1

https://arxiv.org/abs/2105.02124

Sources

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