Vulnerability Details : CVE-2021-29959
When a user has already allowed a website to access microphone and camera, disabling camera sharing would not fully prevent the website from re-enabling it without an additional prompt. This was only possible if the website kept recording with the microphone until re-enabling the camera. This vulnerability affects Firefox < 89.
Exploit prediction scoring system (EPSS) score for CVE-2021-29959
Probability of exploitation activity in the next 30 days: 0.10%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 40 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2021-29959
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
|---|---|---|---|---|---|
|
4.3
|
MEDIUM | AV:N/AC:M/Au:N/C:N/I:P/A:N |
8.6
|
2.9
|
NIST |
|
4.3
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N |
2.8
|
1.4
|
NIST |
CWE ids for CVE-2021-29959
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The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-29959
-
https://security.gentoo.org/glsa/202107-09
Mozilla Firefox: Multiple vulnerabilities (GLSA 202107-09) — Gentoo securityThird Party Advisory
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https://www.mozilla.org/security/advisories/mfsa2021-23/
Security Vulnerabilities fixed in Firefox 89 — MozillaRelease Notes;Vendor Advisory
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https://bugzilla.mozilla.org/show_bug.cgi?id=1395819
Access DeniedIssue Tracking;Permissions Required;Vendor Advisory
Products affected by CVE-2021-29959
- cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*