CVE-2021-29978

Public Exploit

Description

Multiple low security issues were discovered and fixed in a security audit of Mozilla VPN 2.x branch as part of a 3rd party security audit. This vulnerability affects Mozilla VPN < 2.3.

9.8

CVSS

Severity: Critical

CVSS 3.1 •

CVSS 2.0 •

EPSS 1.03% Top 25%

Vendor Advisory mozilla.org

Affected: Mozilla Mozilla VPN

References

Link	Tags
https://www.mozilla.org/security/advisories/mfsa2021-31/	vendor advisory
https://github.com/mozilla-mobile/mozilla-vpn-client/issues/797	third party advisory
https://github.com/mozilla-mobile/mozilla-vpn-client/issues/798	third party advisory
https://github.com/mozilla-mobile/mozilla-vpn-client/issues/799	third party advisory exploit
https://github.com/mozilla-mobile/mozilla-vpn-client/issues/800	third party advisory exploit
https://github.com/mozilla-mobile/mozilla-vpn-client/issues/801	third party advisory
https://github.com/mozilla-mobile/mozilla-vpn-client/issues/803	third party advisory
https://github.com/mozilla-mobile/mozilla-vpn-client/issues/804	third party advisory
https://github.com/mozilla-mobile/mozilla-vpn-client/issues/805	third party advisory
https://github.com/mozilla-mobile/mozilla-vpn-client/issues/806	third party advisory exploit
https://github.com/mozilla-mobile/mozilla-vpn-client/issues/808	third party advisory
https://github.com/mozilla-mobile/mozilla-vpn-client/issues/809	third party advisory
https://github.com/mozilla-mobile/mozilla-vpn-client/issues/810	third party advisory
https://github.com/mozilla-mobile/mozilla-vpn-client/issues/812	third party advisory
https://github.com/mozilla-mobile/mozilla-vpn-client/pull/816	third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2021-29978?: CVE-2021-29978 has been scored as a critical severity vulnerability.
How to fix CVE-2021-29978?: To fix CVE-2021-29978, 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-2021-29978 being actively exploited in the wild?: It is possible that CVE-2021-29978 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-29978?: CVE-2021-29978 affects Mozilla Mozilla VPN.