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CVE-2026-57962
Denial-of-service via malicious LDAP address-book server
Overview
Description

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.

Details
INFO

Published Date :

July 1, 2026, 12:58 a.m.

Last Modified :

July 1, 2026, 12:58 a.m.

Remotely Exploit :

No

Source :

mozilla
Impact
Affected Products

The following products are affected by CVE-2026-57962 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Mozilla thunderbird
: Total Affected Vendor : 1 | Products : 1
Solution
Update Thunderbird to a patched version to prevent memory exhaustion and client crashes.
  • Update Thunderbird to version 152.0.1 or later.
  • Update Thunderbird to version 140.12.1 or later.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-57962 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CVSS
Vulnerability Scoring Details
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