Secuno
ENNL
Book demo

CVE-2024-1936

Mozilla Thunderbird vulnerability

7.5 HIGHPublic exploitEPSS 0.68%
  1. Published4 Mar 2024

Description

The encrypted subject of an email message could be incorrectly and permanently assigned to an arbitrary other email message in Thunderbird's local cache. Consequently, when replying to the contaminated email message, the user might accidentally leak the confidential subject to a third-party. While this update fixes the bug and avoids future message contamination, it does not automatically repair existing contaminations. Users are advised to use the repair folder functionality, which is available from the context menu of email folders, which will erase incorrect subject assignments. This vulnerability affects Thunderbird < 115.8.1.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityHigh
Privileges requiredNone
User interactionRequired
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

Mozilla Thunderbird< 115.8.1
Debian Linux10.0

Remediation

Fixed in
Mozilla Thunderbird≥ 115.8.1

References

Related CVEs

Recent high-severity vulnerabilities sharing a weakness type.

CVE-2026-408688.1
Kyverno is a policy engine designed for cloud native platform engineering teams. Prior…
CVE-2026-334079.1
Wallos is an open-source, self-hostable personal subscription tracker. Prior to version…
CVE-2025-1253910.0
The TNC Toolbox: Web Performance plugin for WordPress is vulnerable to Sensitive…
CVE-2025-86999.1
Some "Stored Value" Unattended Payment Solutions of KioSoft use vulnerable NFC cards.…
CVE-2025-282448.8
Insecure Permissions vulnerability in the Local Storage in Alteryx Server 2023.1.1.460…
CVE-2025-22418.2
A flaw was found in Hive, a component of Multicluster Engine (MCE) and Advanced Cluster…

Frequently asked

Is CVE-2024-1936 being actively exploited?

CVE-2024-1936 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.68%.

How severe is CVE-2024-1936?

CVE-2024-1936 has a CVSS 3.1 base score of 7.5, rated high. EPSS estimates a 0.68% probability of exploitation.

Which products are affected by CVE-2024-1936?

Affected products include Mozilla Thunderbird, Debian Linux.

How do I fix CVE-2024-1936?

Upgrade affected software to a fixed version, for example Mozilla Thunderbird 115.8.1 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2024-1936 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

See how prioritisation worksBook a demo

Get Patch this first every Monday

Five vulnerabilities that matter this week, ranked on real exploitation. Plain language, one email, no spam.

You can unsubscribe with one click from every issue. We handle your details as described in our privacy policy.

Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.