CVE-2021-29993

HighCVSS 8.1/10Last modified Aug 19, 2026

Description

Firefox for Android allowed navigations through the `intent://` protocol, which could be used to cause crashes and UI spoofs. *This bug only affects Firefox for Android. Other operating systems are unaffected.*. This vulnerability affects Firefox < 92.

Metrics

CVSS 3.1 8.1/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H

Affected software

Vendor	Product	Versions
Mozilla	Firefox	>= unspecified, < 92

References

https://bugzilla.mozilla.org/buglist.cgi?bug_id=1712242%2C1708767%2C1712240%2C1708544%2C1729259Broken Link
https://www.mozilla.org/security/advisories/mfsa2021-38/Vendor Advisory
https://bugzilla.mozilla.org/buglist.cgi?bug_id=1712242%2C1708767%2C1712240%2C1708544%2C1729259Broken Link
https://www.mozilla.org/security/advisories/mfsa2021-38/Vendor Advisory

Timeline

Published: Nov 3, 2021
Last modified: Aug 19, 2026
NVD status: Modified

Related CVEs from 2021

CVE-2021-299946.1Cloudera Hue 4.6.0 allows XSS.CVE-2021-299958.8A Cross Site Request Forgery (CSRF) issue in Server Console in CloverDX through 5.9.0 allows remote attackers to execute any action as the l CVE-2021-299969.6Mark Text through 0.16.3 allows attackers arbitrary command execution. This could lead to Remote Code Execution (RCE) by opening .md files c CVE-2021-299975.3An issue was discovered in Wind River VxWorks 7 before 21.03. A specially crafted packet may lead to buffer over-read on IKE.CVE-2021-299989.8An issue was discovered in Wind River VxWorks before 6.5. There is a possible heap overflow in dhcp client.CVE-2021-299999.8An issue was discovered in Wind River VxWorks through 6.8. There is a possible stack overflow in dhcp server.CVE-2021-300009.8An issue was discovered in LATRIX 0.6.0. SQL injection in the txtaccesscode parameter of inandout.php leads to information disclosure and co CVE-2021-300026.2An issue was discovered in the Linux kernel before 5.11.3 when a webcam device exists. video_usercopy in drivers/media/v4l2-core/v4l2-ioctl.CVE-2021-300034.8An issue was discovered on Nokia G-120W-F 3FE46606AGAB91 devices. There is Stored XSS in the administrative interface via urlfilter.cgi?add CVE-2021-300045.3In wpa_supplicant and hostapd 2.9, forging attacks may occur because AlgorithmIdentifier parameters are mishandled in tls/pkcs1.c and tls/x5 CVE-2021-300057.8In JetBrains PyCharm before 2020.3.4, local code execution was possible because of insufficient checks when getting the project from VCS.CVE-2021-300067.5In IntelliJ IDEA before 2020.3.3, XXE was possible, leading to information disclosure.