🛡️ CVE-2022-33903 on Debian — tor

⚪ Unknown ✅ No Known Exploit OSV

N/A

CVSS Score

0 Low4 Medium7 High9 Critical10

Description

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

Distribution advisory

This page covers CVE-2022-33903 as tracked by Debian, for the package tor. The fix is available in version 0.4.7.8-1; earlier versions remain affected.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity none, availability high.

Affected software

DEBIAN-CVE-2022-33903 is recorded against 1 package.

tor (fixed in 0.4.7.8-1)

Timeline and source

Published on 17 July 2022 and last revised on 4 August 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

security-tracker.debian.org (Advisory)

CVE-2022-33903 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Base record

Details

Severity Unknown

CVSS Score N/A

CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE N/A

Public Exploit ✅ No

Source OSV

Published 2022-07-17

Updated 2026-08-20

Modified 2026-08-04

Fix URL N/A

Affected Packages

Software	From version	Fixed in
tor	—	0.4.7.8-1

References

ADVISORY https://security-tracker.debian.org/tracker/CVE-2022-33903

🔗 NVD 🔗 Mitre

Similar Threats

Site Security Check

Is tor part of your stack?

DEBIAN-CVE-2022-33903 is rated CVSS 7.5 High. BotEraser scans your installation against known CVE records and tells you whether this vulnerability applies to the versions you actually run.

Scan My Site Free →

No credit card required · Results in minutes

ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.