TI-2018-15248 Aliases CVE-2018-25021 GHSA-p3p2-9rqf-r8j8

The TCP Server module in toxcore before 0.2.8 doesn't free the TCP priority queue under…

LOW 37CWE-404Published 2021-12-13 · Updated 2024-08-05

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-404.

Summary

The TCP Server module in toxcore before 0.2.8 doesn't free the TCP priority queue under certain conditions, which allows a remote attacker to exhaust the system's memory, causing a denial of service (DoS).

Why it matters now

EPSS 0.02342 83rd 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:toktok:toxcore::::::::	before 0.2.8	Vulnerable	Toktok

cpe:2.3:a:toktok:toxcore:*:*:*:*:*:*:*:* Versions before 0.2.8 Vulnerable ·Toktok

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2018-25021
2026-10-03 Alias added: GHSA-p3p2-9rqf-r8j8

References

Exploit 1

https://github.com/TokTok/c-toxcore/issues/1214

Advisory 2

TI-2021-20291 A stack-based buffer overflow in handle_request function in DHT.c in toxcore 0.1.9… CVSS 3.1CRITICAL 9.8
TI-2018-15249 The Onion module in toxcore before 0.2.2 doesn't restrict which packets can be… CVSS 3.1LOW 3.1

Sources

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