CVE-2021-46702

Name: CVE-2021-46702
Creator: NVD / NIST
Published: 2022-02-26T03:15:07.407+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.39%

Last modified Jun 17, 2026

CVE-2021-46702 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. Tor Browser 9.0.7 on Windows 10 build 10586 is vulnerable to information disclosure. This could allow local attackers to bypass the intended anonymity feature and obtain information regarding the onion services visited by a local user. EPSS estimates a 0.39% chance of exploitation in the next 30 days.

Description

Tor Browser 9.0.7 on Windows 10 build 10586 is vulnerable to information disclosure. This could allow local attackers to bypass the intended anonymity feature and obtain information regarding the onion services visited by a local user. This can be accomplished by analyzing RAM memory even several hours after the local user used the product. This occurs because the product doesn't properly free memory.

Metrics

CVSS 3.1

5.5/10

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

EPSS Probability

0.39%

30.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-404

Affected Software

Vendor	Product	Versions
Torproject	Tor	9.0.7

References

https://www.sciencedirect.com/science/article/pii/S0167404821001358Technical Description, Third Party Advisory
https://www.sciencedirect.com/science/article/pii/S0167404821001358Technical Description, Third Party Advisory

Timeline

Published: Feb 26, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-46702?

How severe is CVE-2021-46702?

CVE-2021-46702 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.39% probability of exploitation in the next 30 days.

How do I fix CVE-2021-46702?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-46702?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST