CVE-2021-23982

Description

Using techniques that built on the slipstream research, a malicious webpage could have scanned both an internal network's hosts as well as services running on the user's local machine utilizing WebRTC connections. This vulnerability affects Firefox ESR < 78.9, Firefox < 87, and Thunderbird < 78.9.

Category

6.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.20%
Vendor Advisory mozilla.org Vendor Advisory mozilla.org Vendor Advisory mozilla.org Vendor Advisory mozilla.org
Affected: Mozilla Firefox ESR
Affected: Mozilla Firefox
Affected: Mozilla Thunderbird
Published at:
Updated at:

References

Link Tags
https://www.mozilla.org/security/advisories/mfsa2021-10/ vendor advisory
https://www.mozilla.org/security/advisories/mfsa2021-12/ vendor advisory
https://www.mozilla.org/security/advisories/mfsa2021-11/ vendor advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1677046 vendor advisory issue tracking

Frequently Asked Questions

What is the severity of CVE-2021-23982?
CVE-2021-23982 has been scored as a medium severity vulnerability.
How to fix CVE-2021-23982?
To fix CVE-2021-23982, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-23982 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-23982 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-23982?
CVE-2021-23982 affects Mozilla Firefox ESR, Mozilla Firefox, Mozilla Thunderbird.
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