CVE-2025-4444

Tor Onion Service Descriptor resource consumption

CVSS 6.3 MEDIUMEPSS 0.4%CWE-400 CWE-404

Vexday Risk Score

13Baixo

Decisão SSVC (CISA)

Track

Sem sinal de exploração → monitorar

CVSS 6.3EPSS 0.4%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado

Ciclo de vida

18 set 2025Publicada no NVD

Recomendação: Monitorar — sem sinal de exploração no momento.

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.

CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X

Produtos afetados

n/a · Tor

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Referências

https://forum.torproject.org/t/alpha-and-stable-release-0-4-8-18-and-0-4-9-3-alpha/20578 https://github.com/chunmianwang/Tordos https://gitlab.torproject.org/tpo/core/tor/-/raw/release-0.4.8/ReleaseNotes https://vuldb.com/?ctiid.324814 https://vuldb.com/?id.324814 https://vuldb.com/?submit.640605