CVE-2021-23962 : Incorrect use of the '<RowCountChanged>' method could have led to a user-after-p

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

Published 2021-02-26 03:15:14

Updated 2021-03-03 20:37:06

Source Mozilla Corporation

View at NVD, CVE.org

Products affected by CVE-2021-23962

Mozilla » Firefox
Versions before (<) 85.0
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
Matching versions

Exploit prediction scoring system (EPSS) score for CVE-2021-23962

EPSS FAQ

0.34%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 54 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-23962

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
6.8	MEDIUM	AV:N/AC:M/Au:N/C:P/I:P/A:P	8.6	6.4	NIST
Access Vector: Network Access Complexity: Medium Authentication: None Confidentiality Impact: Partial Integrity Impact: Partial Availability Impact: Partial
8.8	HIGH	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H	2.8	5.9	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: Required Scope: Unchanged Confidentiality: High Integrity: High Availability: High

References for CVE-2021-23962

https://bugzilla.mozilla.org/show_bug.cgi?id=1677194

Access Denied
Issue Tracking;Permissions Required;Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-03/

Security Vulnerabilities fixed in Firefox 85 — Mozilla
Release Notes;Vendor Advisory

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Vulnerability Details : CVE-2021-23962

Products affected by CVE-2021-23962

Exploit prediction scoring system (EPSS) score for CVE-2021-23962

CVSS scores for CVE-2021-23962

References for CVE-2021-23962