CVE-2021-23977 is a time-of-check-time-of-use (TOCTOU) vulnerability in Firefox for Android versions prior to 86, allowing malicious applications to read sensitive data from Firefox's directories. Rated Medium (CVSS 5.3), it requires user interaction and high attack complexity, but could lead to high confidentiality impact. There is no evidence of active exploitation, public exploit code, or significant community attention, with only one article and one mention identified.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 86.0CPE matchmatch criteria | cpe:2.3:a:mozilla:firefox:*:*:*:*:*:android:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.2 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.
The average CVE in this peer group has 0.2 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.