CVE-2020-26960
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CVE-2020-26960
Published: 9 Dec 2020Last Modified: 16 Apr 2026
Summary:
Details: If the Compact() method was called on an nsTArray, the array could have been reallocated without updating other pointers, leading to a potential use-after-free and exploitable crash. This vulnerability affects Firefox < 83, Firefox ESR < 78.5, and Thunderbird < 78.5.
References: https://www.mozilla.org/security/advisories/mfsa2020-50/, https://www.mozilla.org/security/advisories/mfsa2020-51/, https://www.mozilla.org/security/advisories/mfsa2020-52/, https://bugzilla.mozilla.org/show_bug.cgi?id=1670358
Affected packages
Package
Name:
Purl:
Affected ranges
Type: N/A
Events:
Introduced- None
Fixed -None
Affected versions
Common Vulnerability Scoring System
Attack Vector
Network
Adjacent
Local
Physical
Privileges Required
None
Low
High
User Interaction
None
Required
Scope
Unchanged
Changed
Confidentiality
None
Low
High
Integrity
None
Low
High
Availability
None
Low
High
