What’s Vulnerable › Vulnerabilities

CVE-2022-33903

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-07-17 · updated 2026-06-17

Description

Tor 0.4.7.x before 0.4.7.8 allows a denial of service via the wedging of RTT estimation.

Affected products

• torproject Tor: from 0.4.7.1 before 0.4.7.8 — fixed in 0.4.7.8

How to fix

Upgrade to a fixed version: torproject Tor 0.4.7.8. Check the vendor advisory for mitigations.

References

• https://lists.torproject.org/pipermail/tor-announce/2022-June/000242.html
• https://security-tracker.debian.org/tracker/CVE-2022-33903
• https://security.gentoo.org/glsa/202305-11
• https://lists.torproject.org/pipermail/tor-announce/2022-June/000242.html
• https://security-tracker.debian.org/tracker/CVE-2022-33903
• https://security.gentoo.org/glsa/202305-11

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