What is CVE-2021-46702?

CVE-2021-46702 is a medium-severity vulnerability in Microsoft Windows, classified under Improper Resource Shutdown or Release. CVSS score: 5.5/10. Published 2022-02-26.

How severe is CVE-2021-46702?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Is CVE-2021-46702 known to be exploited?

10 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Microsoft Windows

CVE-2021-46702

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.

EPSS: 0.004 (31.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

Affected products

Microsoft Windows
Torproject Tor — versions 9.0.7
N/a — versions n/a

Weakness classification (CWE)

CWE-404 — Improper Resource Shutdown or Release

Public proof-of-concept exploits

References

cve@mitre.org (Technical Description, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-46702?: CVE-2021-46702 is a medium-severity vulnerability in Microsoft Windows, classified under Improper Resource Shutdown or Release. CVSS score: 5.5/10. Published 2022-02-26.
How severe is CVE-2021-46702?: Medium severity. CVSS v3 base score is 5.5 out of 10.
Is CVE-2021-46702 known to be exploited?: 10 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.