A malicious LDAP server, which a Thunderbird user is configured to query for address-book autocomplete, can stash arbitrarily large amounts of attacker-supplied data into the Thunderbird LDAP client until it crashes due to memory exhaustion. This vulnerability was fixed in Thunderbird 152.0.1 and Thunderbird 140.12.1.
References
| Link | Resource |
|---|---|
| https://bugzilla.mozilla.org/show_bug.cgi?id=2042872 | Permissions Required |
| https://www.mozilla.org/security/advisories/mfsa2026-63/ | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2026-64/ | Vendor Advisory |
Configurations
Configuration 1 (hide)
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History
06 Jul 2026, 15:21
| Type | Values Removed | Values Added |
|---|---|---|
| First Time |
Mozilla
Mozilla thunderbird |
|
| CPE | cpe:2.3:a:mozilla:thunderbird:*:*:*:*:-:*:*:* cpe:2.3:a:mozilla:thunderbird:*:*:*:*:esr:*:*:* |
|
| References | () https://bugzilla.mozilla.org/show_bug.cgi?id=2042872 - Permissions Required | |
| References | () https://www.mozilla.org/security/advisories/mfsa2026-63/ - Vendor Advisory | |
| References | () https://www.mozilla.org/security/advisories/mfsa2026-64/ - Vendor Advisory |
01 Jul 2026, 16:16
| Type | Values Removed | Values Added |
|---|---|---|
| CWE | CWE-400 | |
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.3 |
01 Jul 2026, 15:17
| Type | Values Removed | Values Added |
|---|---|---|
| References |
|
|
01 Jul 2026, 02:17
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-07-01 02:17
Updated : 2026-07-06 15:21
NVD link : CVE-2026-57962
Mitre link : CVE-2026-57962
CVE.ORG link : CVE-2026-57962
JSON object : View
Products Affected
mozilla
- thunderbird
CWE
CWE-400
Uncontrolled Resource Consumption