What is CVE-2021-23962?

CVE-2021-23962 is a high-severity vulnerability in Mozilla Firefox. CVSS score: 8.8/10. Published 2021-02-26.

How severe is CVE-2021-23962?

High severity. CVSS v3 base score is 8.8 out of 10.

Vulnerability in Mozilla Firefox

CVE-2021-23962

Incorrect use of the '<RowCountChanged>' method could have led to a user-after-poison and a potentially exploitable crash. This vulnerability affects Firefox < 85.

EPSS: 0.009 (55.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Mozilla Firefox — versions < 85

References

security@mozilla.org (x_refsource_MISC, Release Notes, Vendor Advisory)
security@mozilla.org (Permissions Required, x_refsource_MISC, Issue Tracking, Vendor Advisory)

Frequently asked questions

What is CVE-2021-23962?: CVE-2021-23962 is a high-severity vulnerability in Mozilla Firefox. CVSS score: 8.8/10. Published 2021-02-26.
How severe is CVE-2021-23962?: High severity. CVSS v3 base score is 8.8 out of 10.