CVE-2024-55884

Name: CVE-2024-55884
Creator: NVD / NIST
Published: 2024-12-12T02:08:23.127+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9/10EPSS 1.31%

Last modified Jun 17, 2026

CVE-2024-55884 is a critical-severity vulnerability rated 9/10 on the CVSS scale. In the Mullvad VPN client 2024.6 (Desktop), 2024.8 (iOS), and 2024.8-beta1 (Android), the exception-handling alternate stack can be exhausted, leading to heap-based out-of-bounds writes in enable() in exception_logging/unix.rs, aka MLLVD-CR-24-01. NOTE: achieving code execution is considered non-trivial.. EPSS estimates a 1.31% chance of exploitation in the next 30 days.

Description

In the Mullvad VPN client 2024.6 (Desktop), 2024.8 (iOS), and 2024.8-beta1 (Android), the exception-handling alternate stack can be exhausted, leading to heap-based out-of-bounds writes in enable() in exception_logging/unix.rs, aka MLLVD-CR-24-01. NOTE: achieving code execution is considered non-trivial.

Metrics

CVSS 3.1

9/10

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

EPSS Probability

1.31%

67.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

References

Timeline

Published: Dec 12, 2024
Last Modified: Jun 17, 2026
Status: Deferred

Frequently Asked Questions

What is CVE-2024-55884?

How severe is CVE-2024-55884?

CVE-2024-55884 has a CVSS score of 9/10 (CRITICAL severity). The EPSS model estimates a 1.31% probability of exploitation in the next 30 days.

How do I fix CVE-2024-55884?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2024-55884?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST