CVE-2018-25022
The Onion module in toxcore before 0.2.2 doesn't restrict which packets can be onion-routed, which allows a remote attacker to discover a target user's IP address (when knowing only their Tox Id) by positioning themselves close to target's Tox Id in the…
Does this matter?
Lower severity and a low EPSS score (1.55%). Track it; it rarely justifies an emergency change on its own.
Description
The Onion module in toxcore before 0.2.2 doesn't restrict which packets can be onion-routed, which allows a remote attacker to discover a target user's IP address (when knowing only their Tox Id) by positioning themselves close to target's Tox Id in the DHT for the target to establish an onion connection with the attacker, guessing the target's DHT public key and creating a DHT node with public key close to it, and finally onion-routing a NAT Ping Request to the target, requesting it to ping the just created DHT node.
- CVSS 3.1
- 3.1 LOWCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
- EPSS
- 1.55% probability · 75th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-200
- Affected
- toktok/toxcore
- Source
- cve@mitre.org
EPSS 1.6% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://blog.tox.chat/2018/04/security-vulnerability-and-new-toxcore-releaseExploit, Vendor Advisory
- https://github.com/TokTok/c-toxcore/issues/873Exploit, Issue Tracking, Third Party Advisory
- https://github.com/TokTok/c-toxcore/pull/872Patch, Third Party Advisory
- https://blog.tox.chat/2018/04/security-vulnerability-and-new-toxcore-releaseExploit, Vendor Advisory
- https://github.com/TokTok/c-toxcore/issues/873Exploit, Issue Tracking, Third Party Advisory
- https://github.com/TokTok/c-toxcore/pull/872Patch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.