Information disclosure in Brave Browser

CVE-2021-22917

Brave Browser Desktop between versions 1.17 and 1.20 is vulnerable to information disclosure by way of DNS requests in Tor windows not flowing through Tor if adblocking was enabled.

Vulnerability class: Information Disclosure

Published · last modified .

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.012 (67.8th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 68th percentile — 67.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2021-22917: held from 0.012 to 0.012.

EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000

Affected products

  • Brave Browser
  • Https://github.com/brave/brave-Core — versions Fixed in 1.20

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2021-22917?
CVE-2021-22917 is a medium-severity vulnerability in Brave Browser, classified under Information Disclosure. CVSS score: 6.5/10. Published 2021-07-12.
How severe is CVE-2021-22917?
Medium severity. CVSS v3 base score is 6.5 out of 10.