TI-2021-14850 Aliases CVE-2021-36710 GHSA-cgmv-c2qg-xxqx

ToaruOS 1.99.2 is affected by incorrect access control via the kernel.

LOW 38CWE-668Published 2022-06-08 · Updated 2024-08-04

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

ToaruOS 1.99.2 is affected by incorrect access control via the kernel. Improper MMU management and having a low GDT address allows it to be mapped in userland. A call gate can then be written to escalate to CPL 0.

Why it matters now

EPSS 0.0035 28th 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:o:toaruos:toaruos:1.99.2:::::::*	1.99.2	Vulnerable	Toaruos

cpe:2.3:o:toaruos:toaruos:1.99.2:*:*:*:*:*:*:* Versions 1.99.2 Vulnerable ·Toaruos

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2021-36710
2026-10-03 Alias added: GHSA-cgmv-c2qg-xxqx

References

Exploit 1

https://github.com/mehsauce/kowasuos/blob/master/exploits/kowasu-sysfunc-strikes-back.c

TI-2022-18355 readelf in ToaruOS 2.0.1 has a global overflow allowing RCE when parsing a crafted ELF file. CVSS 3.1HIGH 8.4
TI-2022-18356 readelf in ToaruOS 2.0.1 has some arbitrary address read vulnerabilities when parsing a crafted ELF file. CVSS 3.1LOW 3.3

Sources

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