VDB
CVE-2017-7820
CVE-2017-7820
PUBLISHED
CVSS 5.300000190734863 MEDIUM
The "instanceof" operator can bypass the Xray wrapper mechanism. When called on web content from the browser itself or an extension the web content can provide its own result for that operator, possibly tricking the browser or extension into mishandling the element. This vulnerability affects Firefox < 56.
EPSS 1.19% · 66.8th percentile
Risk Scores
CVSS 3.0
5.300000190734863
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
EPSS Score
1.19%
66.8th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:18.04:LTS | firefox | 0 |
| Ubuntu:16.04:LTS | firefox | 42.0+build2-0ubuntu1, 44.0+build3-0ubuntu2, 44.0.1+build1-0ubuntu1 |
| Ubuntu:14.04:LTS | firefox | *, 45.0.2+build1-0ubuntu0.14.04.1, 46.0+build5-0ubuntu0.14.04.2 |
Timeline
- Sep 29, 2017 CVE Published
- Apr 14, 2021 EPSS Score
- Jun 23, 2021 EPSS Score
- Aug 25, 2021 EPSS Score
- Oct 27, 2021 EPSS Score
- Dec 30, 2021 EPSS Score
- Mar 3, 2022 EPSS Score
- May 5, 2022 EPSS Score
- May 13, 2022 CVE Updated
- Jul 7, 2022 EPSS Score
- Sep 9, 2022 EPSS Score
- Nov 11, 2022 EPSS Score
References
- https://ubuntu.com/security/CVE-2017-7820 third-party-advisory
- https://www.mozilla.org/en-US/security/advisories/mfsa2017-21/ third-party-advisory
- https://ubuntu.com/security/notices/USN-3435-1 vendor-advisory
- https://www.cve.org/CVERecord?id=CVE-2017-7820 third-party-advisory