Medium severity · published Feb 26, 2022
CVE-2021-46702
Tor Browser 9.0.7 on Windows 10 build 10586 is vulnerable to information disclosure
5.5
CVSS
0.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 33% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
TO
Tor · Torproject
9.0.7 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-46702
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-46702
Technical Description
https://www.sciencedirect.com/science/article/pii/S0167404821001358
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