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CVE-2025-4444
Good to know:
Date: September 18, 2025
A security flaw has been discovered in Tor up to 0.4.7.16/0.4.8.17. Impacted is an unknown function of the component Onion Service Descriptor Handler. Performing manipulation results in resource consumption. The attack may be initiated remotely. The attack's complexity is rated as high. The exploitability is considered difficult. Upgrading to version 0.4.8.18 and 0.4.9.3-alpha is recommended to address this issue. It is recommended to upgrade the affected component.
Severity Score
Related Resources (8)
Severity Score
Weakness Type (CWE)
Top Fix
Upgrade Version
Upgrade to version https://gitlab.torproject.org/tpo/core/tor.git - tor-0.4.8.18;https://gitlab.torproject.org/tpo/core/tor.git - tor-0.4.9.3-alpha
CVSS v3.1
| Base Score: |
|
|---|---|
| Attack Vector (AV): | NETWORK |
| Attack Complexity (AC): | HIGH |
| Privileges Required (PR): | NONE |
| User Interaction (UI): | NONE |
| Scope (S): | UNCHANGED |
| Confidentiality (C): | NONE |
| Integrity (I): | NONE |
| Availability (A): | HIGH |