CVE-2025-4444

LOW

Tor < 0.4.7.16 and 0.4.8.0-0.4.8.17 - Uncontrolled Resource Consumption in Onion Service Descriptor Handler

Title source: llm
STIX 2.1

Description

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.

References (6)

Core 6
Core References
Permissions Required, VDB Entry vdb-entry
https://vuldb.com/?id.324814
Permissions Required, VDB Entry signature permissions-required
https://vuldb.com/?ctiid.324814
Permissions Required, VDB Entry third-party-advisory
https://vuldb.com/?submit.640605

Scores

CVSS v3 3.7
EPSS 0.0044
EPSS Percentile 34.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-400 CWE-404
Status published
Products (37)
n/a/Tor 0.4.7.0
n/a/Tor 0.4.7.1
n/a/Tor 0.4.7.10
n/a/Tor 0.4.7.11
n/a/Tor 0.4.7.12
n/a/Tor 0.4.7.13
n/a/Tor 0.4.7.14
n/a/Tor 0.4.7.15
n/a/Tor 0.4.7.16
n/a/Tor 0.4.7.2
... and 27 more
Published Sep 18, 2025
Tracked Since Feb 18, 2026